# Ni–Ti system

> Ni–Ti system: 261 accepted literature values (formation 97, crystal structure 56, heat capacity / entropy / enthalpy 43, phase transition 42) and 13 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/NI-TI.html · Markdown: https://data.orchid-project.org/systems/NI-TI.md

261 accepted literature values from 7 paper(s) (experimental 35, model 131, DFT 79, unspecified 16); 13 calculated phase diagram(s). 13 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/NI-TI.json) · [CSV](https://data.orchid-project.org/systems/NI-TI.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#NI-TI) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-04Tok.json) · [phases (14)](https://data.orchid-project.org/phases/pages/NI-TI.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/NI-TI.html) · [Markdown](https://data.orchid-project.org/systems/NI-TI.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 35 |
| model | 131 |
| DFT | 79 |
| unspecified | 16 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 23 |
| phase transition | 42 |
| formation | 97 |
| heat capacity / entropy / enthalpy | 43 |
| crystal structure | 56 |

## Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Table: Assessments with a calculated phase diagram

| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| NiTi-04Tok.tdb | T. Tokunaga, K. Hashima, H. Ohtani, M. Hasebe, Mater. Trans. JIM, 45, 1507-14(2004). [doi:10.2320/matertrans.45.1507](https://doi.org/10.2320/matertrans.45.1507) | `362b1ea505e0ce057d1b71a3f11014d31197766e37770102925faeee28254c56` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-04Tok.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-04Tok.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-04Tok.json) |
| NiTi-09Key.tdb | J. De Keyzer, G. Cacciamani, N. Dupin, P. Wollants, Calphad, 33, 109-23(2009). | `5edb4535ec69baf262492be7082746f9d44bad1535cd9ced5318a117394a990e` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-09Key.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-09Key.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-09Key.json) |
| NiTi-13Pov.tdb | E. Povoden-Karadeniz, D.C. Cirstea, P. Lang, T. Wojcik, E. Kozeschnik, Calphad, 41, 128-39(2013). [doi:10.1016/j.calphad.2013.02.004](https://doi.org/10.1016/j.calphad.2013.02.004) | `aba1407d528a3950a5280619a08171857e4a6ad8a4b0c86995c8e7b73f112991` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-13Pov.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-13Pov.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-13Pov.json) |
| NiTi-14Hu.tdb | B. Hu, Y. Du, J.C. Schuster, W. Sun, S. Liu, C. Tang, J. Alloys Compd., 578, 35-42(2014). | `83c0ad45fde56b371df4f38e3e86d022e6fa3c08bc62327ab5b69278071dc3e8` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-14Hu.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-14Hu.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-14Hu.json) |
| NiTi-15San.tdb | K. Santhy, K.C. Hari Kumar, J. Alloys Compd., 619, 733-47(2015). [doi:10.1016/j.jallcom.2014.08.200](https://doi.org/10.1016/j.jallcom.2014.08.200) | `28f41732b6b51f8a075393cc9fa9f461848214f16385ef4951eacfaa36af4f12` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-15San.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-15San.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-15San.json) |
| NiTi-16Ber.tdb | A. Berche, J.C. Tedenac, J. Fartushna, P. Jund, Calphad, 54, 67-75(2016). [doi:10.1016/j.calphad.2016.06.002](https://doi.org/10.1016/j.calphad.2016.06.002) | `d2a92729bf95724c58526835fdc0d851509fbc698a3f1ea4a71aaf38785838f6` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-16Ber.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-16Ber.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-16Ber.json) |
| NiTi-18Hua.tdb | J. Huang, Y. Wang, J. Wang, X.-G. Lu, L. Zhang, J. Phase Equilib. Diffus., 39, 597-609(2018). [doi:10.1007/s11669-018-0650-3](https://doi.org/10.1007/s11669-018-0650-3) | `37a12353c6dda89d33d0e2d913d13a9a5bf6e35ea51a3b9ff9a489b3264c4d0f` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-18Hua.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-18Hua.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-18Hua.json) |
| NiTi-21Jin.tdb | B. Jin, X. Lu, S. Liu, K. Xu, Y. Du, S. Zhang, M. Chu, Calphad, 73, 102256(2021). [doi:10.1016/j.calphad.2021.102256](https://doi.org/10.1016/j.calphad.2021.102256) | `07cb881c11a82ea116caf19fecbbc193e57d7fb28da67a257a5b095a0b15f85a` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-21Jin.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-21Jin.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-21Jin.json) |
| NiTi-22Sun.tdb | H. Sun, Y. Zhang, Q. Pan, Y. Liu, W. Zheng, X.-G. Lu, Calphad, 79, 102505(2022). [doi:10.1016/j.calphad.2022.102505](https://doi.org/10.1016/j.calphad.2022.102505) | `510a8484471c8fd26ba93c84d7977436f9333237d657322208b3aa23b13e653b` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-22Sun.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-22Sun.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-22Sun.json) |
| NiTi-92Sau.tdb | N. Saunders, communication to N. Dupin, 1992. | `7cdd2f2d8f3af719d9c8759a84e7e001044dba426bbe76a65d87dd97f77e9d05` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-92Sau.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-92Sau.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-92Sau.json) |
| NiTi-95Oh.tdb | C.-S. Oh, J.-H. Shim, D.N. Lee, J. Korean Inst. Met. Mater., 33, 129-36(1995). | `661c193a3a6c1514dde350daffa259135a8b7b279a9d3b4165258d674c19a72a` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-95Oh.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-95Oh.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-95Oh.json) |
| NiTi-96Bel-LB.tdb | P. Bellen, K.C. Hari Kumar, P. Wollants, Z. Metallkd., 87, 972-78(1996). [doi:10.1515/ijmr-1996-871207](https://doi.org/10.1515/ijmr-1996-871207) | `1dc4d56ca879ba4553fb58647450c4c1b5a567ed889e134e0c8c6c0d6d5dc5b4` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-96Bel-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-96Bel-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-96Bel-LB.json) |
| NiTi-99Tan.tdb | W. Tang, B. Sundman, R. Sandstrom, C. Qiu, Acta Mater., 47, 3457-68(1999). [doi:10.1016/S1359-6454(99)00193-7](https://doi.org/10.1016/S1359-6454%2899%2900193-7) | `b49cb7d07c39c86aa9170412cb76d743f6e43d270ad5fd62ddd69b9822a86b2c` | [viewer](https://orchid-project.org/phase-diagrams/#NI-TI/NiTi-99Tan.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NiTi-99Tan.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NiTi-99Tan.json) |

Table: Calculated three-phase invariants (model, mole fraction of the second component)

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| NiTi-04Tok.tdb | 1575.61 | FCC_A1 (x(Ti) 0.15698) + LIQUID (x(Ti) 0.1659) + NI3TI_D024 (x(Ti) 0.20428) |
| NiTi-04Tok.tdb | 1393.05 | NI3TI_D024 (x(Ti) 0.25001) + LIQUID (x(Ti) 0.38417) + NITI_B2 (x(Ti) 0.43263) |
| NiTi-04Tok.tdb | 1393.05 | NI3TI_D024 (x(Ti) 0.25001) + LIQUID (x(Ti) 0.38417) + NITI_B2 (x(Ti) 0.43263) |
| NiTi-04Tok.tdb | 1259.51 | NITI_B2 (x(Ti) 0.50962) + NITI2 (x(Ti) 0.667) + LIQUID (x(Ti) 0.66947) |
| NiTi-04Tok.tdb | 1216.34 | NITI2 (x(Ti) 0.667) + LIQUID (x(Ti) 0.74592) + BCC_A2 (x(Ti) 0.89393) |
| NiTi-04Tok.tdb | 1216.34 | NITI2 (x(Ti) 0.667) + LIQUID (x(Ti) 0.74593) + BCC_A2 (x(Ti) 0.89393) |
| NiTi-04Tok.tdb | 1040.77 | NITI2 (x(Ti) 0.667) + BCC_A2 (x(Ti) 0.94726) + HCP_A3 (x(Ti) 0.99847) |
| NiTi-04Tok.tdb | 1040.77 | NITI2 (x(Ti) 0.667) + BCC_A2 (x(Ti) 0.94727) + HCP_A3 (x(Ti) 0.99847) |
| NiTi-09Key.tdb | 1571.95 | FCC_4SL (x(Ti) 0.15079) + LIQUID (x(Ti) 0.1679) + NI3TI_D024 (x(Ti) 0.20835) |
| NiTi-09Key.tdb | 1571.95 | FCC_A1 (x(Ti) 0.15079) + LIQUID (x(Ti) 0.1679) + NI3TI_D024 (x(Ti) 0.20835) |
| NiTi-09Key.tdb | 1393.09 | NI3TI_D024 (x(Ti) 0.25103) + LIQUID (x(Ti) 0.37628) + B2_BCC (x(Ti) 0.43774) |
| NiTi-09Key.tdb | 1257.76 | B2_BCC (x(Ti) 0.50692) + NITI2 (x(Ti) 0.66672) + LIQUID (x(Ti) 0.66955) |
| NiTi-09Key.tdb | 1214.74 | NITI2 (x(Ti) 0.6668) + LIQUID (x(Ti) 0.74551) + B2_BCC (x(Ti) 0.89372) |
| NiTi-09Key.tdb | 1040.1 | NITI2 (x(Ti) 0.66672) + B2_BCC (x(Ti) 0.94692) + HCP_A3 (x(Ti) 0.99846) |
| NiTi-09Key.tdb | 1029.07 | FCC_4SL#2 (x(Ti) 0.08884) + FCC_4SL (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-09Key.tdb | 1029.07 | FCC_A1 (x(Ti) 0.08884) + FCC_4SL (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-09Key.tdb | 411.06 | FCC_4SL#3 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-09Key.tdb | 411.06 | FCC_A1 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-09Key.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-09Key.tdb | 400.41 | FCC_A1 (x(Ti) 0.01939) + FCC_4SL (x(Ti) 0.0311) + NI3TI_D024 (x(Ti) 0.2499) |
| NiTi-09Key.tdb | 400.41 | FCC_4SL (x(Ti) 0.01939) + FCC_4SL#2 (x(Ti) 0.0311) + NI3TI_D024 (x(Ti) 0.2499) |
| NiTi-13Pov.tdb | 1559.8 | FCC_A1 (x(Ti) 0.15024) + LIQUID (x(Ti) 0.15904) + NI3TI_D024 (x(Ti) 0.20769) |
| NiTi-13Pov.tdb | 1420.69 | NI3TI_D024 (x(Ti) 0.25255) + LIQUID (x(Ti) 0.39154) + B2_BCC (x(Ti) 0.44607) |
| NiTi-13Pov.tdb | 1420.69 | NI3TI_D024 (x(Ti) 0.25255) + LIQUID (x(Ti) 0.39154) + B2_BCC (x(Ti) 0.44607) |
| NiTi-13Pov.tdb | 1250.21 | B2_BCC (x(Ti) 0.50257) + NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.67198) |
| NiTi-13Pov.tdb | 1250.21 | B2_BCC (x(Ti) 0.50257) + NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.67198) |
| NiTi-13Pov.tdb | 1221.16 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.7355) + B2_BCC (x(Ti) 0.89078) |
| NiTi-13Pov.tdb | 1221.16 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.73554) + B2_BCC (x(Ti) 0.89078) |
| NiTi-13Pov.tdb | 1221.16 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.73554) + BCC_A2 (x(Ti) 0.89078) |
| NiTi-13Pov.tdb | 1154.99 | HCP_A3 (x(Ti) 1) + BCC_A2 (x(Ti) 1) + B2_BCC (x(Ti) 1) |
| NiTi-13Pov.tdb | 1045.14 | NITI2 (x(Ti) 0.66667) + B2_BCC (x(Ti) 0.94942) + HCP_A3 (x(Ti) 0.9985) |
| NiTi-13Pov.tdb | 1045.14 | NITI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.94951) + HCP_A3 (x(Ti) 0.99851) |
| NiTi-13Pov.tdb | 1045.14 | NITI2 (x(Ti) 0.66667) + B2_BCC (x(Ti) 0.94951) + HCP_A3 (x(Ti) 0.99851) |
| NiTi-13Pov.tdb | 350.04 | B2_BCC (x(Ti) 0.5) + NITI_B19P (x(Ti) 0.50001) + NITI2 (x(Ti) 0.66667) |
| NiTi-13Pov.tdb | 350.04 | B2_BCC (x(Ti) 0.5) + NITI_B19P (x(Ti) 0.50001) + NITI2 (x(Ti) 0.66667) |
| NiTi-13Pov.tdb | 350.03 | NI3TI_D024 (x(Ti) 0.25) + B2_BCC (x(Ti) 0.5) + NITI_B19P (x(Ti) 0.5) |
| NiTi-13Pov.tdb | 350.03 | NI3TI_D024 (x(Ti) 0.25) + NITI_B19P (x(Ti) 0.5) + B2_BCC (x(Ti) 0.5) |
| NiTi-14Hu.tdb | 1571.95 | FCC_4SL (x(Ti) 0.15079) + LIQUID (x(Ti) 0.1679) + NI3TI_D024 (x(Ti) 0.20835) |
| NiTi-14Hu.tdb | 1571.95 | FCC_A1 (x(Ti) 0.15079) + LIQUID (x(Ti) 0.1679) + NI3TI_D024 (x(Ti) 0.20835) |
| NiTi-14Hu.tdb | 1393.87 | NI3TI_D024 (x(Ti) 0.25103) + LIQUID (x(Ti) 0.37608) + BCC_4SL (x(Ti) 0.4478) |
| NiTi-14Hu.tdb | 1257.81 | BCC_4SL (x(Ti) 0.50532) + NITI2 (x(Ti) 0.66672) + LIQUID (x(Ti) 0.66782) |
| NiTi-14Hu.tdb | 1214.74 | NITI2 (x(Ti) 0.6668) + LIQUID (x(Ti) 0.74551) + BCC_4SL (x(Ti) 0.89372) |
| NiTi-14Hu.tdb | 1214.74 | NITI2 (x(Ti) 0.6668) + LIQUID (x(Ti) 0.74551) + BCC_A2 (x(Ti) 0.89372) |
| NiTi-14Hu.tdb | 1154.99 | HCP_A3 (x(Ti) 1) + BCC_4SL (x(Ti) 1) + BCC_A2 (x(Ti) 1) |
| NiTi-14Hu.tdb | 1040.1 | NITI2 (x(Ti) 0.66672) + BCC_4SL (x(Ti) 0.94692) + HCP_A3 (x(Ti) 0.99846) |
| NiTi-14Hu.tdb | 1040.1 | NITI2 (x(Ti) 0.66672) + BCC_A2 (x(Ti) 0.94692) + HCP_A3 (x(Ti) 0.99846) |
| NiTi-14Hu.tdb | 1029.07 | FCC_4SL#2 (x(Ti) 0.08884) + FCC_4SL (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-14Hu.tdb | 1029.07 | FCC_A1 (x(Ti) 0.08884) + FCC_4SL (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-14Hu.tdb | 1029.07 | FCC_A1 (x(Ti) 0.08884) + FCC_4SL (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-14Hu.tdb | 1029.07 | FCC_4SL (x(Ti) 0.08884) + FCC_4SL#2 (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-14Hu.tdb | 1029.07 | FCC_A1 (x(Ti) 0.08884) + FCC_4SL (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-14Hu.tdb | 1029.07 | FCC_4SL (x(Ti) 0.08884) + FCC_4SL#2 (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-14Hu.tdb | 1029.07 | FCC_A1 (x(Ti) 0.08884) + FCC_4SL (x(Ti) 0.10193) + NI3TI_D024 (x(Ti) 0.23359) |
| NiTi-14Hu.tdb | 411.06 | FCC_4SL#3 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_A1 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_A1 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_4SL#2 (x(Ti) 0.01986) + FCC_4SL#3 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_4SL (x(Ti) 0.01986) + FCC_4SL#3 (x(Ti) 0.03369) + FCC_4SL#2 (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_A1 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_A1 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_A1 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_A1 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_4SL#2 (x(Ti) 0.01986) + FCC_4SL#3 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 411.06 | FCC_4SL#3 (x(Ti) 0.01986) + FCC_4SL#2 (x(Ti) 0.03369) + FCC_4SL (x(Ti) 0.05214) |
| NiTi-14Hu.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-14Hu.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-14Hu.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-14Hu.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-14Hu.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-14Hu.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-14Hu.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-14Hu.tdb | 405.18 | FCC_4SL#2 (x(Ti) 0.03522) + FCC_4SL (x(Ti) 0.05356) + NI3TI_D024 (x(Ti) 0.24988) |
| NiTi-14Hu.tdb | 400.41 | FCC_4SL (x(Ti) 0.01939) + FCC_4SL#2 (x(Ti) 0.0311) + NI3TI_D024 (x(Ti) 0.2499) |
| NiTi-14Hu.tdb | 400.41 | FCC_A1 (x(Ti) 0.01939) + FCC_4SL (x(Ti) 0.0311) + NI3TI_D024 (x(Ti) 0.2499) |
| NiTi-14Hu.tdb | 400.41 | FCC_4SL#2 (x(Ti) 0.01939) + FCC_4SL (x(Ti) 0.0311) + NI3TI_D024 (x(Ti) 0.2499) |
| NiTi-14Hu.tdb | 400.41 | FCC_A1 (x(Ti) 0.01939) + FCC_4SL (x(Ti) 0.0311) + NI3TI_D024 (x(Ti) 0.2499) |
| NiTi-14Hu.tdb | 400.41 | FCC_A1 (x(Ti) 0.01939) + FCC_4SL (x(Ti) 0.0311) + NI3TI_D024 (x(Ti) 0.2499) |
| NiTi-15San.tdb | 1577.1 | FCC_A1 (x(Ti) 0.15185) + LIQUID (x(Ti) 0.16302) + NI3TI_D024 (x(Ti) 0.20697) |
| NiTi-15San.tdb | 1396.25 | NI3TI_D024 (x(Ti) 0.25061) + LIQUID (x(Ti) 0.37761) + B2_BCC (x(Ti) 0.43793) |
| NiTi-15San.tdb | 1257.49 | B2_BCC (x(Ti) 0.52267) + NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.67166) |
| NiTi-15San.tdb | 1214.07 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.74457) + B2_BCC (x(Ti) 0.90641) |
| NiTi-15San.tdb | 1214.07 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.74463) + B2_BCC (x(Ti) 0.90643) |
| NiTi-15San.tdb | 1214.07 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.74463) + BCC_A2 (x(Ti) 0.90643) |
| NiTi-15San.tdb | 1154.99 | HCP_A3 (x(Ti) 1) + BCC_A2 (x(Ti) 1) + B2_BCC (x(Ti) 1) |
| NiTi-15San.tdb | 1036.31 | NITI2 (x(Ti) 0.66667) + B2_BCC (x(Ti) 0.94948) + HCP_A3 (x(Ti) 0.9976) |
| NiTi-15San.tdb | 1036.31 | NITI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.94957) + HCP_A3 (x(Ti) 0.99761) |
| NiTi-15San.tdb | 1036.31 | NITI2 (x(Ti) 0.66667) + B2_BCC (x(Ti) 0.94957) + HCP_A3 (x(Ti) 0.99761) |
| NiTi-16Ber.tdb | 1575.61 | FCC_A1 (x(Ti) 0.15698) + LIQUID (x(Ti) 0.1659) + NI3TI_D024 (x(Ti) 0.20428) |
| NiTi-16Ber.tdb | 1393.05 | NI3TI_D024 (x(Ti) 0.25001) + LIQUID (x(Ti) 0.38417) + NITI_B2 (x(Ti) 0.43263) |
| NiTi-16Ber.tdb | 1393.05 | NI3TI_D024 (x(Ti) 0.25001) + LIQUID (x(Ti) 0.38417) + NITI_B2 (x(Ti) 0.43263) |
| NiTi-16Ber.tdb | 1252.25 | NITI_B2 (x(Ti) 0.50964) + NITI2 (x(Ti) 0.667) + LIQUID (x(Ti) 0.67137) |
| NiTi-16Ber.tdb | 1213.24 | NITI2 (x(Ti) 0.667) + LIQUID (x(Ti) 0.74506) + BCC_A2 (x(Ti) 0.89349) |
| NiTi-16Ber.tdb | 1213.24 | NITI2 (x(Ti) 0.667) + LIQUID (x(Ti) 0.74512) + BCC_A2 (x(Ti) 0.89352) |
| NiTi-16Ber.tdb | 1043.59 | NITI2 (x(Ti) 0.667) + BCC_A2 (x(Ti) 0.94865) + HCP_A3 (x(Ti) 0.99849) |
| NiTi-16Ber.tdb | 1043.59 | NITI2 (x(Ti) 0.667) + BCC_A2 (x(Ti) 0.94871) + HCP_A3 (x(Ti) 0.99849) |
| NiTi-18Hua.tdb | 1572.57 | FCC_A1 (x(Ti) 0.14632) + LIQUID (x(Ti) 0.16334) + NI3TI_D024 (x(Ti) 0.20505) |
| NiTi-18Hua.tdb | 1407.14 | NI3TI_D024 (x(Ti) 0.25122) + LIQUID (x(Ti) 0.38089) + B2_BCC (x(Ti) 0.44289) |
| NiTi-18Hua.tdb | 1257.76 | B2_BCC (x(Ti) 0.50692) + NITI2 (x(Ti) 0.66672) + LIQUID (x(Ti) 0.66955) |
| NiTi-18Hua.tdb | 1214.74 | NITI2 (x(Ti) 0.6668) + LIQUID (x(Ti) 0.74551) + B2_BCC (x(Ti) 0.89372) |
| NiTi-18Hua.tdb | 1040.1 | NITI2 (x(Ti) 0.66672) + B2_BCC (x(Ti) 0.94692) + HCP_A3 (x(Ti) 0.99846) |
| NiTi-21Jin.tdb | 1573.18 | FCC_A1 (x(Ti) 0.15201) + LIQUID (x(Ti) 0.16759) + NI3TI_D024 (x(Ti) 0.20618) |
| NiTi-21Jin.tdb | 1397.49 | NI3TI_D024 (x(Ti) 0.24998) + LIQUID (x(Ti) 0.37771) + B2_BCC (x(Ti) 0.43934) |
| NiTi-21Jin.tdb | 1397.49 | NI3TI_D024 (x(Ti) 0.24998) + LIQUID (x(Ti) 0.37771) + B2_BCC (x(Ti) 0.43934) |
| NiTi-21Jin.tdb | 1397.49 | NI3TI_D024 (x(Ti) 0.24998) + LIQUID (x(Ti) 0.37771) + B2_BCC (x(Ti) 0.43934) |
| NiTi-21Jin.tdb | 1257.69 | B2_BCC (x(Ti) 0.50692) + NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.66957) |
| NiTi-21Jin.tdb | 1257.69 | B2_BCC (x(Ti) 0.50692) + NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.66957) |
| NiTi-21Jin.tdb | 1214.64 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.74541) + B2_BCC (x(Ti) 0.89367) |
| NiTi-21Jin.tdb | 1214.64 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.74548) + B2_BCC (x(Ti) 0.8937) |
| NiTi-21Jin.tdb | 1214.64 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.74548) + BCC_A2 (x(Ti) 0.8937) |
| NiTi-21Jin.tdb | 1154.99 | HCP_A3 (x(Ti) 1) + BCC_A2 (x(Ti) 1) + B2_BCC (x(Ti) 1) |
| NiTi-21Jin.tdb | 1040.09 | NITI2 (x(Ti) 0.66667) + B2_BCC (x(Ti) 0.94692) + HCP_A3 (x(Ti) 0.99846) |
| NiTi-21Jin.tdb | 1040.09 | NITI2 (x(Ti) 0.66667) + B2_BCC (x(Ti) 0.94692) + HCP_A3 (x(Ti) 0.99846) |
| NiTi-21Jin.tdb | 1040.09 | NITI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.94692) + HCP_A3 (x(Ti) 0.99846) |
| NiTi-22Sun.tdb | 1578.37 | FCC_A1 (x(Ti) 0.14969) + LIQUID (x(Ti) 0.1649) + NI3TI_D024 (x(Ti) 0.20581) |
| NiTi-22Sun.tdb | 1410.86 | NI3TI_D024 (x(Ti) 0.25127) + LIQUID (x(Ti) 0.38213) + B2_BCC (x(Ti) 0.44427) |
| NiTi-22Sun.tdb | 1410.86 | NI3TI_D024 (x(Ti) 0.25127) + LIQUID (x(Ti) 0.38213) + B2_BCC (x(Ti) 0.44427) |
| NiTi-22Sun.tdb | 1260.34 | B2_BCC (x(Ti) 0.50693) + NITI2 (x(Ti) 0.66681) + LIQUID (x(Ti) 0.66885) |
| NiTi-22Sun.tdb | 1260.34 | B2_BCC (x(Ti) 0.50693) + NITI2 (x(Ti) 0.66681) + LIQUID (x(Ti) 0.66885) |
| NiTi-22Sun.tdb | 1219.67 | NITI2 (x(Ti) 0.66704) + LIQUID (x(Ti) 0.74679) + B2_BCC (x(Ti) 0.89437) |
| NiTi-22Sun.tdb | 1219.67 | NITI2 (x(Ti) 0.66704) + LIQUID (x(Ti) 0.74679) + BCC_A2 (x(Ti) 0.89437) |
| NiTi-22Sun.tdb | 1044.98 | NITI2 (x(Ti) 0.66686) + B2_BCC (x(Ti) 0.94942) + HCP_A3 (x(Ti) 0.9985) |
| NiTi-22Sun.tdb | 1044.98 | NITI2 (x(Ti) 0.66686) + BCC_A2 (x(Ti) 0.94942) + HCP_A3 (x(Ti) 0.9985) |
| NiTi-22Sun.tdb | 351.3 | B2_BCC (x(Ti) 0.5) + NITI_B19P (x(Ti) 0.5) + NITI2 (x(Ti) 0.66667) |
| NiTi-22Sun.tdb | 351.3 | NITI_B19P (x(Ti) 0.5) + B2_BCC (x(Ti) 0.5) + NITI2 (x(Ti) 0.66667) |
| NiTi-22Sun.tdb | 351.25 | NI3TI_D024 (x(Ti) 0.25) + B2_BCC (x(Ti) 0.49988) + NITI_B19P (x(Ti) 0.5) |
| NiTi-22Sun.tdb | 351.25 | NI3TI_D024 (x(Ti) 0.25) + B2_BCC (x(Ti) 0.49988) + NITI_B19P (x(Ti) 0.5) |
| NiTi-92Sau.tdb | 1572.38 | FCC_A1 (x(Ti) 0.14699) + LIQUID (x(Ti) 0.16044) + NI3TI_D024 (x(Ti) 0.20934) |
| NiTi-92Sau.tdb | 1462.48 | NI3TI_D024 (x(Ti) 0.26186) + LIQUID (x(Ti) 0.38781) + B2_BCC (x(Ti) 0.42791) |
| NiTi-92Sau.tdb | 1287.9 | B2_BCC (x(Ti) 0.51336) + LIQUID (x(Ti) 0.66446) + NITI2 (x(Ti) 0.66667) |
| NiTi-92Sau.tdb | 1217.68 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.76479) + BCC_A2 (x(Ti) 0.88033) |
| NiTi-92Sau.tdb | 1217.68 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.7648) + BCC_A2 (x(Ti) 0.88034) |
| NiTi-92Sau.tdb | 1043.77 | NITI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.9416) + HCP_A3 (x(Ti) 0.99848) |
| NiTi-92Sau.tdb | 1043.77 | NITI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.94168) + HCP_A3 (x(Ti) 0.99848) |
| NiTi-95Oh.tdb | 1576.09 | FCC_A1 (x(Ti) 0.14355) + LIQUID (x(Ti) 0.17323) + NI3TI_D024 (x(Ti) 0.25) |
| NiTi-95Oh.tdb | 1576.09 | FCC_A1 (x(Ti) 0.14348) + LIQUID (x(Ti) 0.17316) + NI3TI_D024 (x(Ti) 0.25) |
| NiTi-95Oh.tdb | 1402.71 | NI3TI_D024 (x(Ti) 0.25) + LIQUID (x(Ti) 0.3895) + NITI_B2 (x(Ti) 0.44315) |
| NiTi-95Oh.tdb | 1255.31 | NITI_B2 (x(Ti) 0.53215) + NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.66888) |
| NiTi-95Oh.tdb | 1212.05 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.73682) + BCC_A2 (x(Ti) 0.90308) |
| NiTi-95Oh.tdb | 1212.05 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.73686) + BCC_A2 (x(Ti) 0.90309) |
| NiTi-95Oh.tdb | 1037.48 | NITI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.94652) + HCP_A3 (x(Ti) 0.99802) |
| NiTi-95Oh.tdb | 1037.48 | NITI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.94663) + HCP_A3 (x(Ti) 0.99802) |
| NiTi-96Bel-LB.tdb | 1570.37 | FCC_A1 (x(Ti) 0.15622) + LIQUID (x(Ti) 0.16426) + NI3TI_D024 (x(Ti) 0.19265) |
| NiTi-96Bel-LB.tdb | 1392.57 | NI3TI_D024 (x(Ti) 0.24997) + LIQUID (x(Ti) 0.37609) + B2_BCC (x(Ti) 0.43751) |
| NiTi-96Bel-LB.tdb | 1392.57 | NI3TI_D024 (x(Ti) 0.24997) + LIQUID (x(Ti) 0.37608) + B2_BCC (x(Ti) 0.4375) |
| NiTi-96Bel-LB.tdb | 1257.76 | B2_BCC (x(Ti) 0.50692) + NITI2 (x(Ti) 0.66672) + LIQUID (x(Ti) 0.66955) |
| NiTi-96Bel-LB.tdb | 1214.74 | NITI2 (x(Ti) 0.6668) + LIQUID (x(Ti) 0.74551) + B2_BCC (x(Ti) 0.89372) |
| NiTi-96Bel-LB.tdb | 1040.1 | NITI2 (x(Ti) 0.66672) + B2_BCC (x(Ti) 0.94692) + HCP_A3 (x(Ti) 0.99846) |
| NiTi-99Tan.tdb | 1572.38 | FCC_A1 (x(Ti) 0.14699) + LIQUID (x(Ti) 0.16044) + NI3TI_D024 (x(Ti) 0.20934) |
| NiTi-99Tan.tdb | 1456.58 | NI3TI_D024 (x(Ti) 0.262) + LIQUID (x(Ti) 0.38999) + B2_BCC (x(Ti) 0.42452) |
| NiTi-99Tan.tdb | 1456.58 | NI3TI_D024 (x(Ti) 0.262) + LIQUID (x(Ti) 0.38999) + B2_BCC (x(Ti) 0.42452) |
| NiTi-99Tan.tdb | 1287.64 | B2_BCC (x(Ti) 0.50478) + NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.67296) |
| NiTi-99Tan.tdb | 1217.72 | NITI2 (x(Ti) 0.66667) + LIQUID (x(Ti) 0.76476) + B2_BCC (x(Ti) 0.8803) |
| NiTi-99Tan.tdb | 1043.67 | NITI2 (x(Ti) 0.66667) + B2_BCC (x(Ti) 0.9417) + HCP_A3 (x(Ti) 0.99848) |
| NiTi-99Tan.tdb | 366.4 | B2_BCC (x(Ti) 0.50009) + NITI_B19 (x(Ti) 0.50028) + NITI2 (x(Ti) 0.66667) |
| NiTi-99Tan.tdb | 366.15 | NI3TI_D024 (x(Ti) 0.25) + B2_BCC (x(Ti) 0.49999) + NITI_B19 (x(Ti) 0.50002) |
| NiTi-99Tan.tdb | 366.15 | NI3TI_D024 (x(Ti) 0.25) + B2_BCC (x(Ti) 0.49999) + NITI_B19 (x(Ti) 0.50002) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/NI/NI-TI.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/NI/NI-TI.json) · [CALPHAD hull NiTi-04Tok](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-04Tok.json) · [CALPHAD hull NiTi-09Key](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-09Key.json) · [CALPHAD hull NiTi-13Pov](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-13Pov.json) · [CALPHAD hull NiTi-14Hu](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-14Hu.json) · [CALPHAD hull NiTi-15San](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-15San.json) · [CALPHAD hull NiTi-16Ber](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-16Ber.json) · [CALPHAD hull NiTi-18Hua](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-18Hua.json) · [CALPHAD hull NiTi-21Jin](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-21Jin.json) · [CALPHAD hull NiTi-92Sau](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-92Sau.json) · [CALPHAD hull NiTi-96Bel-LB](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-96Bel-LB.json) · [CALPHAD hull NiTi-99Tan](https://data.orchid-project.org/hulls/calphad-sgte/NI/NI-TI--NiTi-99Tan.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Ni–Ti system (23)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1577.15 | L \<=> (γ-Ni) + Ni3Ti | L: Ti 0.163; (γ-Ni): Ti 0.152; Ni3Ti: Ti 0.207 | model | [1] Santhy 2015 | Table 8, p. 4, row 1; `ORC-7IXAX6U6AY` |  |
| 1577.15 | L \<=> (γ-Ni) + Ni3Ti | L: Ti 0.169; (γ-Ni): Ti 0.153; Ni3Ti: Ti 0.2 | model | [1] Santhy 2015; _cites Murray 1991_ | Table 8, p. 4, row 2; `ORC-BL5UMO5MTK` |  |
| 1572.15 | eutectic: L -> Ni + TiNi3 | L: Ti 0.168; Ni: Ti 0.151; TiNi3: Ti 0.208 | model | [2] Cacciamani 2011 | Table 7, p. 8, row 3; `ORC-XQ3PLVH7SN` |  |
| 1396.15 | eutectic: L -> NiTi + Ni3Ti | L: Ti 0.378; NiTi: Ti 0.438; Ni3Ti: Ti 0.251 | model | [1] Santhy 2015 | Table 4, p. 4, row 1; `ORC-JIQVQSJSMI` |  |
| 1396.15 | L \<=> NiTi + Ni3Ti | L: Ti 0.378; NiTi: Ti 0.438; Ni3Ti: Ti 0.251 | model | [1] Santhy 2015 | Table 8, p. 4, row 5; `ORC-LIF5HT5VKY` |  |
| 1393.15 | L \<=> NiTi + Ni3Ti | L: Ti 0.38; NiTi: Ti 0.43; Ni3Ti: Ti 0.254 | model | [1] Santhy 2015; _cites Murray 1991_ | Table 8, p. 4, row 6; `ORC-U6GTWMRFXV` |  |
| 1393.15 | eutectic: L -> NiTi + Ni3Ti | L: Ti 0.38; NiTi: Ti 0.43; Ni3Ti: Ti 0.254 | experimental | [1] Santhy 2015; _cites Murray 1991_ | Table 4, p. 4, row 2; `ORC-YJF7UGHYBR` |  |
| 1392.15 | eutectic: L -> TiNi3 + TiNi | L: Ti 0.377; TiNi3: Ti 0.251; TiNi: Ti 0.438 | model | [2] Cacciamani 2011 | Table 7, p. 8, row 4; `ORC-BPUOQ4CJNP` |  |
| 1258.15 | peritectic: L + TiNi -> Ti2Ni | L: Ti 0.669; TiNi: Ti 0.507; Ti2Ni: Ti 0.667 | model | [2] Cacciamani 2011 | Table 7, p. 8, row 5; `ORC-DBLA4CFBHT` |  |
| 1257.15 | L + NiTi -> NiTi2 | L: Ti 0.667; NiTi: Ti 0.51; NiTi2: Ti 0.66 | experimental | [1] Santhy 2015; _cites Murray 1991_ | Table 4, p. 4, row 6; `ORC-4JKZV56WK5` |  |
| 1257.15 | L + NiTi \<=> NiTi2 | L: Ti 0.672; NiTi: Ti 0.523; NiTi2: Ti 0.667 | model | [1] Santhy 2015 | Table 8, p. 4, row 9; `ORC-C7GXQZZQRQ` |  |
| 1257.15 | L + NiTi -> NiTi2 | L: Ti 0.672; NiTi: Ti 0.523; NiTi2: Ti 0.667 | model | [1] Santhy 2015 | Table 4, p. 4, row 5; `ORC-U4ZLPG4F6K` |  |
| 1257.15 | L + NiTi \<=> NiTi2 | L: Ti 0.667; NiTi: Ti 0.51; NiTi2: Ti 0.66 | model | [1] Santhy 2015; _cites Murray 1991_ | Table 8, p. 4, row 10; `ORC-VVH3ZIT4IN` |  |
| 1215.15 | L \<=> NiTi2 + (β-Ti) | L: Ti 0.751; NiTi2: Ti 0.894; (β-Ti): Ti 0.69 | model | [1] Santhy 2015; _cites Murray 1991_ | Table 8, p. 4, row 12; `ORC-HTDACAICSK` |  |
| 1215.15 | eutectic: L -> Ti2Ni + bcc-Ti | L: Ti 0.746; Ti2Ni: Ti 0.667; bcc-Ti: Ti 0.894 | model | [2] Cacciamani 2011 | Table 7, p. 8, row 6; `ORC-ITQFUNVPSL` |  |
| 1215.15 | eutectic: L -> NiTi2 + (β-Ti) | L: Ti 0.751; NiTi2: Ti 0.894; (β-Ti): Ti 0.69 | experimental | [1] Santhy 2015; _cites Murray 1991_ | Table 4, p. 4, row 8; `ORC-TIY4U7YIR4` |  |
| 1214.15 | eutectic: L -> NiTi2 + (β-Ti) | L: Ti 0.745; NiTi2: Ti 0.667; (β-Ti): Ti 0.906 | model | [1] Santhy 2015 | Table 4, p. 4, row 7; `ORC-FOHQYORQIT` |  |
| 1214.15 | L \<=> NiTi2 + (β-Ti) | L: Ti 0.745; NiTi2: Ti 0.667; (β-Ti): Ti 0.906 | model | [1] Santhy 2015 | Table 8, p. 4, row 11; `ORC-ZGKZC3A3EB` |  |
| 1040.15 | eutectoid: bcc-Ti -> Ti2Ni + hcp-Ti | bcc-Ti: Ti 0.947; Ti2Ni: Ti 0.667; hcp-Ti: Ti 0.998 | model | [2] Cacciamani 2011 | Table 7, p. 8, row 7; `ORC-INEJ4QZWTL` |  |
| 1038.15 | (β-Ti) \<=> (α-Ti) + NiTi2 | (β-Ti): Ti 0.999; (α-Ti): Ti 0.95; NiTi2: Ti 0.69 | model | [1] Santhy 2015; _cites Murray 1991_ | Table 8, p. 4, row 14; `ORC-57RAGI5SN6` |  |
| 1038.15 | (β-Ti) -> (α-Ti) + NiTi2 | (β-Ti): Ti 0.95; (α-Ti): Ti 0.999; NiTi2: Ti 0.69 | experimental | [1] Santhy 2015; _cites Murray 1991_ | Table 4, p. 4, row 10; `ORC-R7PYJZD5QY` |  |
| 1036.15 | (β-Ti) \<=> (α-Ti) + NiTi2 | (β-Ti): Ti 0.95; (α-Ti): Ti 0.998; NiTi2: Ti 0.667 | model | [1] Santhy 2015 | Table 8, p. 4, row 13; `ORC-6JLH37SHQU` |  |
| 1036.15 | (β-Ti) -> (α-Ti) + NiTi2 | (β-Ti): Ti 0.95; (α-Ti): Ti 0.998; NiTi2: Ti 0.667 | model | [1] Santhy 2015 | Table 4, p. 4, row 9; `ORC-UCKEK3CMN6` |  |

## Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from [dft_parity.json](https://data.orchid-project.org/literature/dft_parity.json).

Table: Enthalpies of formation, Ni–Ti system (88)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Ni3Ti |  | -48.73 per mol-atom |  | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 11; `ORC-PXQSABPIMU` |  |
| Ni3Ti |  | -47.6 per mol-atom |  | model |  |  | [1] Santhy 2015; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 9, p. 6, row 10; `ORC-HJ3XLPEXJD` |  |
| Ni3Ti |  | -47.1 per mol-atom |  | model |  |  | [1] Santhy 2015; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 9, p. 6, row 9; `ORC-D7DNHPNF6K` |  |
| Ni3Ti |  | -42.9 per mol-atom ± 1000 | 1513.15 | experimental |  |  | [1] Santhy 2015; _cites Gachon 1981_ [doi](https://doi.org/10.1016/0040-6031%2881%2987031-1) | Table 9, p. 6, row 3; `ORC-AZYJ2LADOX` |  |
| Ni3Ti |  | -42.2 per mol-atom ± 1200 | 1477.15 | experimental |  |  | [1] Santhy 2015; _cites Guo 1998_ [doi](https://doi.org/10.1016/s0925-8388%2898%2900246-1) | Table 9, p. 6, row 5; `ORC-RASMQUZLPB` |  |
| Ni3Ti |  | -40.067 per mol-atom | 1513.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 4; `ORC-FQJFJOB5HP` |  |
| Ni3Ti |  | -39.92 per mol-atom | 1477.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 6; `ORC-D75WRGPTRY` |  |
| Ni3Ti |  | -34.852 per mol-atom ± 2000 | 298.15 | experimental |  |  | [1] Santhy 2015; _cites Kubaschewski 1956_ [doi](https://doi.org/10.1039/tf9565200214) | Table 9, p. 6, row 1; `ORC-C7DOZ3P3EZ` |  |
| Ni3Ti |  | -33.369 per mol-atom | 298.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 2; `ORC-6GH34YTD7A` |  |
| Ni3Ti |  | -32.5 per mol-atom | 298.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 12; `ORC-FFOAFW4XLR` |  |
| Ni3Ti(D024) |  | -45.99 kJ/mol-atom | 0 | DFT |  |  | [3] Tokunaga 2004 | Table 2, p. 3, row 11; `ORC-SCR5BXKZPF.531ef5` |  |
| Ni3Ti(D024) | [Ni3Ti](https://data.orchid-project.org/compounds/Ni3Ti.html) | -42.2 kJ/mol-atom ± 1.2 | 298.15 | experimental | -46.582 (mp-aaaaaccf) | -47.751 (oqmd-5776) | [3] Tokunaga 2004; _cites Guo 1998_ [doi](https://doi.org/10.1016/s0925-8388%2898%2900246-1) | Table 2, p. 3, row 12; `ORC-3VGEQTV6FF` |  |
| Ni3Ti(D03) |  | -46.8 kJ/mol-atom |  | DFT |  |  | [4] Hu 2014; _cites Colinet 1993_ [doi](https://doi.org/10.1016/0921-4526%2893%2990026-3) | Table 1, p. 5, row 13; `ORC-4XGNW6UYVR` |  |
| Ni3Ti(D03) | [Ni3Ti](https://data.orchid-project.org/compounds/Ni3Ti.html) | -44.4 kJ/mol-atom |  | model | -46.582 (mp-aaaaaccf) | -31.322 (oqmd-308086) | [4] Hu 2014; _cites Colinet 1993_ [doi](https://doi.org/10.1016/0921-4526%2893%2990026-3) | Table 1, p. 5, row 12; `ORC-P7NG6K4JV3` |  |
| Ni3Ti(D03) | [Ni3Ti](https://data.orchid-project.org/compounds/Ni3Ti.html) | -30.68 kJ/mol-atom | 298.15 | model | -46.582 (mp-aaaaaccf) | -31.322 (oqmd-308086) | [4] Hu 2014 | Table 1, p. 5, row 15; `ORC-B56Y6OEZBZ` |  |
| Ni3Ti(D03) |  | -29.5 kJ/mol-atom | 0 | DFT |  |  | [4] Hu 2014 | Table 1, p. 5, row 14; `ORC-7G3N7SITPN` |  |
| Ni3Ti(L12) |  | -45.1 kJ/mol-atom | 0 | DFT |  |  | [3] Tokunaga 2004 | Table 2, p. 3, row 6; `ORC-S5IWBLQOKP.31dedb` |  |
| NiTi |  | -45.8 per mol-atom | 298.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 28; `ORC-DOG4QYG2QE` |  |
| NiTi |  | -38.347 per mol-atom | 1477.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 22; `ORC-TR4ISUM33S` |  |
| NiTi |  | -38.286 per mol-atom | 1460.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 16; `ORC-5PKCCWZZCU` |  |
| NiTi |  | -38.1 per mol-atom |  | model |  |  | [1] Santhy 2015; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 9, p. 6, row 25; `ORC-5K2VMN54GI` |  |
| NiTi |  | -37.212 per mol-atom | 1173.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 20; `ORC-3CUO6Q7KIJ` |  |
| NiTi |  | -36.1 per mol-atom |  | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 27; `ORC-YUYMZPONBL` |  |
| NiTi |  | -36 per mol-atom |  | model |  |  | [1] Santhy 2015; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 9, p. 6, row 26; `ORC-VRXRBLVP3F` |  |
| NiTi |  | -34.2 per mol-atom ± 2000 | 999.15 | experimental |  |  | [1] Santhy 2015; _cites Gomozov 1986_ | Table 9, p. 6, row 17; `ORC-A2VKLEYF66` |  |
| NiTi |  | -34.16 per mol-atom | 999.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 18; `ORC-KMD5SSYUTK` |  |
| NiTi |  | -34 per mol-atom ± 2000 | 1460.15 | experimental |  |  | [1] Santhy 2015; _cites Gachon 1981_ [doi](https://doi.org/10.1016/0040-6031%2881%2987031-1) | Table 9, p. 6, row 15; `ORC-42EA2HRQQS` |  |
| NiTi |  | -33.911 per mol-atom ± 2000 | 298.15 | experimental |  |  | [1] Santhy 2015; _cites Kubaschewski 1956_ [doi](https://doi.org/10.1039/tf9565200214) | Table 9, p. 6, row 13; `ORC-2S5WH36XGG` |  |
| NiTi |  | -33.1 per mol-atom ± 1100 | 1477.15 | experimental |  |  | [1] Santhy 2015; _cites ref. 1998Guo_ | Table 9, p. 6, row 21; `ORC-OK2TYX3B7R` |  |
| NiTi |  | -32.51 per mol-atom | 1173.15 | experimental |  |  | [1] Santhy 2015; _cites Yi 1989_ [doi](https://doi.org/10.1007/bf02385723) | Table 9, p. 6, row 19; `ORC-6MAYECTT2N` |  |
| NiTi |  | -31.159 per mol-atom | 298.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 14; `ORC-5THPFCF46R` |  |
| NiTi(B2) | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -46 kJ/mol-atom |  | model | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [4] Hu 2014; _cites Colinet 1993_ [doi](https://doi.org/10.1016/0921-4526%2893%2990026-3) | Table 1, p. 5, row 1; `ORC-GJLJE4AMAL` |  |
| NiTi(B2) |  | -40.9 kJ/mol-atom |  | DFT |  |  | [4] Hu 2014; _cites Colinet 1993_ [doi](https://doi.org/10.1016/0921-4526%2893%2990026-3) | Table 1, p. 5, row 2; `ORC-ZBVIXAGZK4` |  |
| NiTi(B2) |  | -34.59 kJ/mol-atom | 0 | DFT |  |  | [3] Tokunaga 2004 | Table 2, p. 3, row 2; `ORC-CEJYONOTZK.28f7a6` |  |
| NiTi(B2) | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -34.15 kJ/mol-atom | 999 | experimental | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [4] Hu 2014; _cites Gomozov 1986_ | Table 1, p. 5, row 5; `ORC-BEB5Y4LZT2` |  |
| NiTi(B2) | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -34 kJ/mol-atom | 1460 | experimental | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [4] Hu 2014; _cites Gachon 1981_ [doi](https://doi.org/10.1016/0040-6031%2881%2987031-1) | Table 1, p. 5, row 3; `ORC-2YDOIF7YWA` |  |
| NiTi(B2) | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -33.9 kJ/mol-atom | 298.15 | experimental | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [4] Hu 2014; _cites Kubaschewski 1956_ [doi](https://doi.org/10.1039/tf9565200214) | Table 1, p. 5, row 4; `ORC-HYPU3NBXDV` |  |
| NiTi(B2) | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -33.85 kJ/mol-atom | 298.15 | model | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [4] Hu 2014 | Table 1, p. 5, row 7; `ORC-AMXW2U6OBS` |  |
| NiTi(B2) |  | -33.24 kJ/mol-atom | 0 | DFT |  |  | [4] Hu 2014 | Table 1, p. 5, row 6; `ORC-GUI4FRBXZC` |  |
| NiTi(B2) | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -33.1 kJ/mol-atom ± 1.1 | 298.15 | experimental | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [3] Tokunaga 2004; _cites Guo 1998_ [doi](https://doi.org/10.1016/s0925-8388%2898%2900246-1) | Table 2, p. 3, row 3; `ORC-W2AEPF25IN` |  |
| NiTi(B32) |  | -38.5 kJ/mol-atom |  | DFT |  |  | [4] Hu 2014; _cites Colinet 1993_ [doi](https://doi.org/10.1016/0921-4526%2893%2990026-3) | Table 1, p. 5, row 9; `ORC-VFTSMFU73D` |  |
| NiTi(B32) | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -36.5 kJ/mol-atom |  | model | -38.194 (mp-aaaaaboi) | -32.491 (oqmd-2082617) | [4] Hu 2014; _cites Colinet 1993_ [doi](https://doi.org/10.1016/0921-4526%2893%2990026-3) | Table 1, p. 5, row 8; `ORC-M76EK3XHFY` |  |
| NiTi(B32) |  | -29.29 kJ/mol-atom | 0 | DFT |  |  | [4] Hu 2014 | Table 1, p. 5, row 10; `ORC-QV67TMJDFO` |  |
| NiTi(B32) | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -9.8 kJ/mol-atom | 298.15 | model | -38.194 (mp-aaaaaboi) | -32.491 (oqmd-2082617) | [4] Hu 2014 | Table 1, p. 5, row 11; `ORC-TZDUPCUZ3I` |  |
| NiTi2 |  | -35.3 per mol-atom | 298.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 36; `ORC-Z3DPWMWWJG` |  |
| NiTi2 |  | -33.7 per mol-atom |  | model |  |  | [1] Santhy 2015; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 9, p. 6, row 33; `ORC-PEWMDBISIK` |  |
| NiTi2 |  | -30.393 per mol-atom | 1202.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 32; `ORC-XH5ZFBUOA5` |  |
| NiTi2 |  | -29.3 per mol-atom ± 500 | 1202.15 | experimental |  |  | [1] Santhy 2015; _cites Gachon 1981_ [doi](https://doi.org/10.1016/0040-6031%2881%2987031-1) | Table 9, p. 6, row 31; `ORC-DKBHZHHMO5` |  |
| NiTi2 |  | -28.96 per mol-atom |  | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 35; `ORC-PGGDLMCOL3` |  |
| NiTi2 |  | -28.2 per mol-atom |  | model |  |  | [1] Santhy 2015; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 9, p. 6, row 34; `ORC-SJLLP6NH2U` |  |
| NiTi2 |  | -26.896 per mol-atom ± 2000 | 298.15 | experimental |  |  | [1] Santhy 2015; _cites Kubaschewski 1956_ [doi](https://doi.org/10.1039/tf9565200214) | Table 9, p. 6, row 29; `ORC-M5NJPL46CN` |  |
| NiTi2 |  | -25.849 per mol-atom | 298.15 | model |  |  | [1] Santhy 2015 | Table 9, p. 6, row 30; `ORC-SI5WWVJHY2` |  |
| NiTi3(D03) | [NiTi3](https://data.orchid-project.org/compounds/NiTi3.html) | -13.68 kJ/mol-atom | 298.15 | model | -7.619 (mp-aaacdvmv) | -10.781 (oqmd-311353) | [4] Hu 2014 | Table 1, p. 5, row 17; `ORC-WKLF5QN66S` |  |
| NiTi3(D03) |  | -12.11 kJ/mol-atom | 0 | DFT |  |  | [4] Hu 2014 | Table 1, p. 5, row 16; `ORC-ROPQKQG3WK` |  |
| Ti2Ni |  | -33.7 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 6, p. 8, row 19; `ORC-QVWDFAJQI3.3a6e31` |  |
| Ti2Ni |  | -28.2 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 6, p. 8, row 20; `ORC-N5KHCICVLX.50919e` |  |
| Ti2Ni | [NiTi2](https://data.orchid-project.org/compounds/NiTi2.html) | -26.977 kJ/mol-atom | 298.15 | model | -26.758 (mp-aaaaacro) | -33.202 (oqmd-1372059) | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 14; `ORC-VZ42TLKJHT.7cd9c0` |  |
| Ti2Ni | [NiTi2](https://data.orchid-project.org/compounds/NiTi2.html) | -26.901 kJ/mol-atom | 298.15 | model | -26.758 (mp-aaaaacro) | -33.202 (oqmd-1372059) | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 15; `ORC-RUO2L3D6YH.958025` |  |
| Ti2Ni | [NiTi2](https://data.orchid-project.org/compounds/NiTi2.html) | -26.8 kJ/mol-atom | 298.15 | experimental | -26.758 (mp-aaaaacro) | -33.202 (oqmd-1372059) | [5] Povoden-Karadeniz 2013; _cites Kubaschewski 1958_ [doi](https://doi.org/10.1039/tf9585400814) | Table 6, p. 8, row 16; `ORC-PEPGNW2DTY.86597c` |  |
| Ti3Ni(D024) |  | -5.69 kJ/mol-atom | 0 | DFT |  |  | [3] Tokunaga 2004 | Table 2, p. 3, row 13; `ORC-U5LPOUSGI5.436bc2` |  |
| Ti3Ni(L12) |  | -8.04 kJ/mol-atom | 0 | DFT |  |  | [3] Tokunaga 2004 | Table 2, p. 3, row 7; `ORC-GHVW4IOUCB.9f2031` |  |
| TiNi B19' |  | -39.8 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 6, p. 8, row 35; `ORC-VJDAY63XJC.ebd44e` |  |
| TiNi B19' |  | -39.5 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Hatcher 2009_ [doi](https://doi.org/10.1103/physrevb.80.144203) | Table 6, p. 8, row 37; `ORC-XXBR7PY5JP.8baacf` |  |
| TiNi B19' |  | -37.8 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 6, p. 8, row 36; `ORC-A3RVHCV7SZ.b800ef` |  |
| TiNi B19' | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -37.721 kJ/mol-atom | 298.15 | model | -38.194 (mp-aaaaaboi) | -40.284 (oqmd-107703) | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 33; `ORC-HHKNYOONKX.26cd87` |  |
| TiNi-B2 |  | -38.1 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 6, p. 8, row 26; `ORC-AEZ3NUS2GY.3029aa` |  |
| TiNi-B2 |  | -38 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Sanati 1998_ [doi](https://doi.org/10.1103/physrevb.58.13590) | Table 6, p. 8, row 28; `ORC-PY7OAANHXS.129e17` |  |
| TiNi-B2 |  | -36.665 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Lu 2007_ [doi](https://doi.org/10.1103/physrevb.75.094108) | Table 6, p. 8, row 31; `ORC-THKKQEXNTY.7b9738` |  |
| TiNi-B2 |  | -36 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 6, p. 8, row 27; `ORC-4FGZPPJ2XA.ccd139` |  |
| TiNi-B2 | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -34.721 kJ/mol-atom | 298.15 | model | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 21; `ORC-BFT55GLVVO.762d6d` |  |
| TiNi-B2 |  | -34.1 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Hatcher 2009_ [doi](https://doi.org/10.1103/physrevb.80.144203) | Table 6, p. 8, row 29; `ORC-AKMVKBOLWE.4e78c3` |  |
| TiNi-B2 | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -34.052 kJ/mol-atom | 298.15 | model | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 22; `ORC-DAZ6OBEEXC.a9c57f` |  |
| TiNi-B2 | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -33.9 kJ/mol-atom | 298.15 | experimental | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [5] Povoden-Karadeniz 2013; _cites Kubaschewski 1958_ [doi](https://doi.org/10.1039/tf9585400814) | Table 6, p. 8, row 24; `ORC-YEW6RRQCYU.9b4e30` |  |
| TiNi-B2 |  | -33.77 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Huang 2002_ | Table 6, p. 8, row 32; `ORC-ALLTHFCF2Z.310a6d` |  |
| TiNi-B2 | [NiTi](https://data.orchid-project.org/compounds/NiTi.html) | -33.339 kJ/mol-atom | 298.15 | model | -33.515 (mp-aaaaaavz) | -36.473 (oqmd-116608) | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 6, p. 8, row 23; `ORC-VW75NPAQGL.426365` |  |
| TiNi-B2 |  | -32.784 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 25; `ORC-4R2G2JJ6I6.0053d5` |  |
| TiNi-B2 |  | -31.84 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Stott 2010_ [doi](https://doi.org/10.1021/jp103552s) | Table 6, p. 8, row 30; `ORC-FNCW2HM35O.ca4734` |  |
| TiNi3 |  | -43800 per mol-atom ± 1600 | 298.15 | experimental |  |  | [5] Povoden-Karadeniz 2013; _cites Moser 2006_ | Table 6, p. 8, row 5; `ORC-CZXUNUNPIV.039ff2` |  |
| TiNi3 |  | -34700 per mol-atom | 298.15 | experimental |  |  | [5] Povoden-Karadeniz 2013; _cites Kubaschewski 1958_ [doi](https://doi.org/10.1039/tf9585400814) | Table 6, p. 8, row 7; `ORC-EKEI6H6ON4.a168d0` |  |
| TiNi3 |  | -47.6 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 6, p. 8, row 12; `ORC-YSPAWP22OA.73965b` |  |
| TiNi3 |  | -47.1 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 6, p. 8, row 11; `ORC-JCYRE4PV3K.624621` |  |
| TiNi3 |  | -46.313 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013; _cites Stott 2010_ [doi](https://doi.org/10.1021/jp103552s) | Table 6, p. 8, row 13; `ORC-GW46WWUZT2.ff74b0` |  |
| TiNi3 |  | -45.928 kJ/mol-atom | 0 | DFT |  |  | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 10; `ORC-L2OPU6DDBU.b904a0` |  |
| TiNi3 | [Ni3Ti](https://data.orchid-project.org/compounds/Ni3Ti.html) | -42.2 kJ/mol-atom ± 1200 | 298.15 | experimental | -46.582 (mp-aaaaaccf) | -47.751 (oqmd-5776) | [5] Povoden-Karadeniz 2013; _cites Guo 1998_ [doi](https://doi.org/10.1016/s0925-8388%2898%2900246-1) | Table 6, p. 8, row 6; `ORC-LAZG747PW7.cfff53` |  |
| TiNi3 | [Ni3Ti](https://data.orchid-project.org/compounds/Ni3Ti.html) | -42.132 kJ/mol-atom | 298.15 | model | -46.582 (mp-aaaaaccf) | -47.751 (oqmd-5776) | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 1; `ORC-GGV4NIYGUE.038c77` |  |
| TiNi3 | [Ni3Ti](https://data.orchid-project.org/compounds/Ni3Ti.html) | -40.043 kJ/mol-atom | 298.15 | model | -46.582 (mp-aaaaaccf) | -47.751 (oqmd-5776) | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 6, p. 8, row 3; `ORC-TO7LV3HK7P.85d984` |  |
| TiNi3 | [Ni3Ti](https://data.orchid-project.org/compounds/Ni3Ti.html) | -36.978 kJ/mol-atom | 298.15 | model | -46.582 (mp-aaaaaccf) | -47.751 (oqmd-5776) | [5] Povoden-Karadeniz 2013; _cites De 2009_ [doi](https://doi.org/10.1016/j.calphad.2008.10.003) | Table 6, p. 8, row 4; `ORC-TFYC3BEAP3.5d67ab` |  |
| TiNi3 | [Ni3Ti](https://data.orchid-project.org/compounds/Ni3Ti.html) | -36.871 kJ/mol-atom | 298.15 | model | -46.582 (mp-aaaaaccf) | -47.751 (oqmd-5776) | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 2; `ORC-AWMN4E2VH3.e58de0` |  |

## Other properties

### Phase transition (42)

Table: Phase transition, Ni–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 353 K | 353 | other: TiNi-B2 \<--> B19'; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 2, p. 4, row 29; `ORC-RXSARTPGFP` |  |
| Phase transition | 366 K | 366 | other: TiNi-B2 \<--> B19'; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Tang 1999_ [doi](https://doi.org/10.1016/s1359-6454%2899%2900193-7) | Table 2, p. 4, row 30; `ORC-NGL6WLHLXD` |  |
| Phase transition | 930 K | 930 | other | experimental | [5] Povoden-Karadeniz 2013; _cites Nishida 1986_ [doi](https://doi.org/10.1007/bf02650086) | p. 2; `ORC-MJEKOBUSVA.2fd871` | “Nishida et al. \[19\] presented important experimental solvus data in terms of a time-temperature-transformation diagram of a Ti-52 at% Ni alloy. Concluding from his work, the kinetic solvi of Ti3Ni4 and Ti2Ni3 are situated at approximately 1023 K and 930 K, respectively.” |
| Phase transition | 1023 K | 1023 | other | experimental | [5] Povoden-Karadeniz 2013; _cites Nishida 1986_ [doi](https://doi.org/10.1007/bf02650086) | p. 2; `ORC-MJEKOBUSVA.b57542` | “Nishida et al. \[19\] presented important experimental solvus data in terms of a time-temperature-transformation diagram of a Ti-52 at% Ni alloy. Concluding from his work, the kinetic solvi of Ti3Ni4 and Ti2Ni3 are situated at approximately 1023 K and 930 K, respectively.” |
| Phase transition | 1040 K | 1040 | other: bcc \<--> hcp+Ti2Ni | model | [5] Povoden-Karadeniz 2013; _cites Tang 1999_ [doi](https://doi.org/10.1016/s1359-6454%2899%2900193-7) | Table 2, p. 4, row 8; `ORC-44YE47YPA3` |  |
| Phase transition | 1040 K | 1040 | other: bcc \<--> hcp+Ti2Ni | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 2, p. 4, row 7; `ORC-BVZLB4446H` |  |
| Phase transition | 1040 K | 1040 | other: bcc \<--> hcp+Ti2Ni | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 2, p. 4, row 6; `ORC-QFVZXL2YFS` |  |
| Phase transition | 1045 K | 1045 | other: bcc \<--> hcp+Ti2Ni | model | [5] Povoden-Karadeniz 2013 | Table 2, p. 4, row 5; `ORC-HZRPTUZWRQ` |  |
| Phase transition | 1205 K | 1205 | other: liq \<--> bcc+Ti2Ni | model | [5] Povoden-Karadeniz 2013; _cites Tang 1999_ [doi](https://doi.org/10.1016/s1359-6454%2899%2900193-7) | Table 2, p. 4, row 4; `ORC-CZT4QPYZY5` |  |
| Phase transition | 1215 K | 1215 | other: liq \<--> bcc+Ti2Ni | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 2, p. 4, row 3; `ORC-UJBGTAJRRE` |  |
| Phase transition | 1215 K | 1215 | other: liq \<--> bcc+Ti2Ni | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 2, p. 4, row 2; `ORC-XNBRK6MZGO` |  |
| Phase transition | 1221 K | 1221 | other: liq \<--> bcc+Ti2Ni | model | [5] Povoden-Karadeniz 2013 | Table 2, p. 4, row 1; `ORC-SZAVZQ6QQN` |  |
| Phase transition | 1250 K | 1250 | other: liq+TiNi-B2 \<--> Ti2Ni; _alloy: Ti 0.666667_ | model | [5] Povoden-Karadeniz 2013 | Table 2, p. 4, row 9; `ORC-RHVU6P3344` |  |
| Phase transition | 1258 K | 1258 | other: liq+TiNi-B2 \<--> Ti2Ni; _alloy: Ti 0.666667_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 2, p. 4, row 10; `ORC-2CJE6AJ66W` |  |
| Phase transition | 1258 K | 1258 | other: liq+TiNi-B2 \<--> Ti2Ni; _alloy: Ti 0.666667_ | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 2, p. 4, row 11; `ORC-YV35OFO3L7` |  |
| Phase transition | 1275 K | 1275 | other: liq+TiNi-B2 \<--> Ti2Ni; _alloy: Ti 0.666667_ | model | [5] Povoden-Karadeniz 2013; _cites Tang 1999_ [doi](https://doi.org/10.1016/s1359-6454%2899%2900193-7) | Table 2, p. 4, row 12; `ORC-E6JS7FMVNV` |  |
| Phase transition | 1393 K | 1393 | other: liq \<--> TiNi-B2+TiNi3; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 2, p. 4, row 19; `ORC-7PV7NK3CV6` |  |
| Phase transition | 1393 K | 1393 | other: liq \<--> TiNi-B2+TiNi3; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 2, p. 4, row 18; `ORC-HWCELQRI2V` |  |
| Phase transition | 1419 K | 1419 | other: liq \<--> TiNi-B2+TiNi3; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 2, p. 4, row 17; `ORC-BCRVD72DG5` |  |
| Phase transition | 1450 K | 1450 | other: liq \<--> TiNi-B2+TiNi3; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Tang 1999_ [doi](https://doi.org/10.1016/s1359-6454%2899%2900193-7) | Table 2, p. 4, row 20; `ORC-BRHTCVL55I` |  |
| Phase transition | 1559 K | 1559 | other: liq \<--> TiNi3+fcc | model | [5] Povoden-Karadeniz 2013 | Table 2, p. 4, row 25; `ORC-YP52VIULKV` |  |
| Phase transition | 1560 K | 1560 | other: liq \<--> TiNi3+fcc | model | [5] Povoden-Karadeniz 2013; _cites Tang 1999_ [doi](https://doi.org/10.1016/s1359-6454%2899%2900193-7) | Table 2, p. 4, row 28; `ORC-OXTYSIVSRL` |  |
| Phase transition | 1573 K | 1573 | other: liq \<--> TiNi3+fcc | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 2, p. 4, row 26; `ORC-O4RHPTV76D` |  |
| Phase transition | 1576 K | 1576 | other: liq \<--> TiNi3+fcc | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 2, p. 4, row 27; `ORC-5HFVFXXK2A` |  |
| Phase transition | 1580 K | 1580 | other: liq \<--> TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Tang 1999_ [doi](https://doi.org/10.1016/s1359-6454%2899%2900193-7) | Table 2, p. 4, row 16; `ORC-PVUOIWKBEH` |  |
| Phase transition | 1582.15 K | 1582.15 | congruent melting: L -> TiNi; _L: Ti 0.5; TiNi: Ti 0.5_ | model | [2] Cacciamani 2011 | Table 7, p. 8, row 2; `ORC-CKC5YLPAPY` |  |
| Phase transition | 1583 K | 1583 | other: liq \<--> TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 2, p. 4, row 13; `ORC-OGYZ24TXFC` |  |
| Phase transition | 1583.15 K | 1583.15 | L -> NiTi; _NiTi: Ti 0.5_ | experimental | [1] Santhy 2015; _cites Murray 1991_ | Table 4, p. 4, row 4; `ORC-5QMYRHF44L` |  |
| Phase transition | 1583.15 K | 1583.15 | L -> NiTi; _NiTi: Ti 0.499_ | model | [1] Santhy 2015 | Table 4, p. 4, row 3; `ORC-MGO2LG7363` |  |
| Phase transition | 1583.15 K | 1583.15 | L \<=> NiTi; _NiTi: Ti 0.499_ | model | [1] Santhy 2015 | Table 8, p. 4, row 7; `ORC-6LPVVLDLS7` |  |
| Phase transition | 1583.15 K | 1583.15 | L \<=> NiTi; _NiTi: Ti 0.5_ | model | [1] Santhy 2015; _cites Murray 1991_ | Table 8, p. 4, row 8; `ORC-YRJP4EZEQR` |  |
| Phase transition | 1584 K | 1584 | other: liq \<--> TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 2, p. 4, row 14; `ORC-25QC66ZPRM` |  |
| Phase transition | 1585 K | 1585 | B2 + liquid | model | [6] Tang 1999 | p. 11; `ORC-H45YQVEETZ` | “The calculated melting point of B2 (1585 K) also agrees better with experimental data (1513±1583 K).” |
| Phase transition | 1585 K | 1585 | other: liq \<--> TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 2, p. 4, row 15; `ORC-UQL7NL5ZHK` |  |
| Phase transition | 1605 K | 1605 | congruent transformation | model | [6] Tang 1999 | p. 5; `ORC-DZUYTF7L4R` | “In addition, the previous evaluation for the congruent melting temperature of B2 is 1605 K; that is higher than the experimental data which range from 1513 to 1583 K \[22\].” |
| Phase transition | 1648 K | 1648 | other: liq \<--> TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013 | Table 2, p. 4, row 21; `ORC-WDWAB2P56C` |  |
| Phase transition | 1650 K | 1650 | other: liq \<--> TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 2, p. 4, row 23; `ORC-Y5RHGH6ZTQ` |  |
| Phase transition | 1653 K | 1653 | other: liq \<--> TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 2, p. 4, row 22; `ORC-54C5M6S4GO` |  |
| Phase transition | 1653.15 K | 1653.15 | L \<=> Ni3Ti; _L: Ti 0.231; Ni3Ti: Ti 0.25_ | model | [1] Santhy 2015 | Table 8, p. 4, row 3; `ORC-APIRESGC3A` |  |
| Phase transition | 1653.15 K | 1653.15 | L \<=> Ni3Ti; _Ni3Ti: Ti 0.25_ | model | [1] Santhy 2015; _cites Murray 1991_ | Table 8, p. 4, row 4; `ORC-EE4UYNSVCM` |  |
| Phase transition | 1657.15 K | 1657.15 | congruent melting: L -> TiNi3; _L: Ti 0.25; TiNi3: Ti 0.25_ | model | [2] Cacciamani 2011 | Table 7, p. 8, row 1; `ORC-2SPA6B42YX` |  |
| Phase transition | 1660 K | 1660 | other: liq \<--> TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites Tang 1999_ [doi](https://doi.org/10.1016/s1359-6454%2899%2900193-7) | Table 2, p. 4, row 24; `ORC-AWUHOYMGDR` |  |

### Formation (9)

Table: Formation, Ni–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy of formation; _printed: ΔSf(TiNi3)_ | -14.9 J/mol K | 1653 | Sf(TiNi3) | experimental | [5] Povoden-Karadeniz 2013; _cites Smith 1993_ [doi](https://doi.org/10.1007/bf02671969) | p. 7; `ORC-UPEU77MNC6` | “Smith et al. \[62\] derived a ΔSf(TiNi3) 1⁄4 -14.9 J/mol K at 1653 K, close to the melting point.” |
| Gibbs energy of formation; _printed: ΔGf_ | -43.6 per mol-atom | 1300.15 | Ni3Ti; _alloy: Ti 0.25_ | experimental | [1] Santhy 2015; _cites Levshin 1979_ | Table 9, p. 6, row 7; `ORC-3ICO7Z73UI` |  |
| Gibbs energy of formation; _printed: ΔGf_ | -29.607 per mol-atom | 1300.15 | Ni3Ti; _alloy: Ti 0.25_ | model | [1] Santhy 2015 | Table 9, p. 6, row 8; `ORC-MYMJGMA2C3` |  |
| Gibbs energy of formation; _printed: ΔGf_ | -31.943 per mol-atom | 1300.15 | NiTi; _alloy: Ti 0.5_ | model | [1] Santhy 2015 | Table 9, p. 6, row 24; `ORC-KP2CK3KXXC` |  |
| Gibbs energy of formation; _printed: ΔGf_ | -31.6 per mol-atom | 1300.15 | NiTi; _alloy: Ti 0.5_ | experimental | [1] Santhy 2015; _cites Levshin 1979_ | Table 9, p. 6, row 23; `ORC-OVNEQTKGLU` |  |
| end member formation energy; _printed: ΔEf_ | -36.1 kJ/mol-atom | 0 | (Ni)0.5(Ti)0.5(Va)3 / (Ti)0.5(Ni)0.5(Va)3; _alloy: Ni 0.5, Ti 0.5_ | DFT | [1] Santhy 2015 | Table 5, p. 4, row 12; `ORC-5U3HR2W7ID` |  |
| end member formation energy; _printed: ΔEf_ | 58.14 kJ/mol-atom | 0 | (Ni)0.5(Va)0.5(Va)3 / (Va)0.5(Ti)0.5(Va)3 | DFT | [1] Santhy 2015 | Table 5, p. 4, row 13; `ORC-5EZOM72ZDW` |  |
| end member formation energy; _printed: ΔEf_ | -48.73 kJ/mol-atom | 0 | (Ni)3(Ti)1; _alloy: Ni 0.75, Ti 0.25_ | DFT | [1] Santhy 2015 | Table 5, p. 4, row 8; `ORC-O2SV5STX32` |  |
| end member formation energy; _printed: ΔEf_ | -8.72 kJ/mol-atom | 0 | (Ti)3(Ni)1; _alloy: Ni 0.25, Ti 0.75_ | DFT | [1] Santhy 2015 | Table 5, p. 4, row 9; `ORC-H7SQPVQY5Z` |  |

### Heat capacity / entropy / enthalpy (43)

Table: Heat capacity / entropy / enthalpy, Ni–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy; _printed: Sm, 298.15 K_ | 28.63 per mol-atom | 298.15 | Ti2Ni; _alloy: Ti 0.666667_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 15; `ORC-RUO2L3D6YH.da5c6d` |  |
| Entropy; _printed: Sm, 298.15 K_ | 29.22 per mol-atom | 298.15 | Ti2Ni; _alloy: Ti 0.666667_ | model | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 14; `ORC-VZ42TLKJHT.a9228e` |  |
| Entropy; _printed: Sm, 298.15 K_ | 22.31 per mol-atom | 298.15 | TiNi B19'; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 33; `ORC-HHKNYOONKX.000df8` |  |
| Entropy; _printed: Sm, 298.15 K_ | 30.82 per mol-atom | 298.15 | TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 21; `ORC-BFT55GLVVO.51bf13` |  |
| Entropy; _printed: Sm, 298.15 K_ | 31.19 per mol-atom | 298.15 | TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 22; `ORC-DAZ6OBEEXC.780a52` |  |
| Entropy; _printed: Sm, 298.15 K_ | 31.47 per mol-atom | 298.15 | TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 6, p. 8, row 23; `ORC-VW75NPAQGL.606818` |  |
| Entropy; _printed: Sm, 298.15 K_ | 27.01 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 2; `ORC-AWMN4E2VH3.01be67` |  |
| Entropy; _printed: Sm, 298.15 K_ | 27.44 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 1; `ORC-GGV4NIYGUE.aed7ad` |  |
| Entropy; _printed: Sm, 298.15 K_ | 27.01 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites De 2009_ [doi](https://doi.org/10.1016/j.calphad.2008.10.003) | Table 6, p. 8, row 4; `ORC-TFYC3BEAP3.6502c7` |  |
| Entropy; _printed: Sm, 298.15 K_ | 25.09 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 6, p. 8, row 3; `ORC-TO7LV3HK7P.f5741f` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 24.6 per mol-atom | 298.15 | Ti2Ni; _alloy: Ti 0.666667_ | experimental | [5] Povoden-Karadeniz 2013; _cites Smith 1993_ [doi](https://doi.org/10.1007/bf02671969) | Table 6, p. 8, row 18; `ORC-IS6SRA7BLW.330048` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 23.4 per mol-atom | 298.15 | Ti2Ni; _alloy: Ti 0.666667_ | experimental | [5] Povoden-Karadeniz 2013; _cites Zabdyr_ | Table 6, p. 8, row 17; `ORC-N6WSGETJJC.45561d` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 25.09 per mol-atom | 298.15 | Ti2Ni; _alloy: Ti 0.666667_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 15; `ORC-RUO2L3D6YH.8d36b2` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 24.71 per mol-atom | 298.15 | Ti2Ni; _alloy: Ti 0.666667_ | model | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 14; `ORC-VZ42TLKJHT.ac7ff8` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 25.54 per mol-atom | 298.15 | TiNi B19'; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 33; `ORC-HHKNYOONKX.fdfdf2` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 24.2 per mol-atom | 298.15 | TiNi B19'; _alloy: Ti 0.5_ | experimental | [5] Povoden-Karadeniz 2013; _cites Smith 1993_ [doi](https://doi.org/10.1007/bf02671969) | Table 6, p. 8, row 34; `ORC-L455SW7B3D.1ba23f` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 25.52 per mol-atom | 298.15 | TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 21; `ORC-BFT55GLVVO.49814b` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 25.52 per mol-atom | 298.15 | TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 22; `ORC-DAZ6OBEEXC.4f1d35` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 25.58 per mol-atom | 298.15 | TiNi-B2; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 6, p. 8, row 23; `ORC-VW75NPAQGL.e172ad` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 25.02 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites Bellen 1996_ | Table 6, p. 8, row 2; `ORC-AWMN4E2VH3.5ff15c` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 21.42 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013 | Table 6, p. 8, row 1; `ORC-GGV4NIYGUE.cdb9de` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 23.4 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | experimental | [5] Povoden-Karadeniz 2013; _cites Smith 1993_ [doi](https://doi.org/10.1007/bf02671969) | Table 6, p. 8, row 9; `ORC-OF5U35NQQT.992d72` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 21.79 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | experimental | [5] Povoden-Karadeniz 2013; _cites Onderka 2010_ | Table 6, p. 8, row 8; `ORC-RH4LYZGE3Y.f7a613` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 25.02 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites De 2009_ [doi](https://doi.org/10.1016/j.calphad.2008.10.003) | Table 6, p. 8, row 4; `ORC-TFYC3BEAP3.8c5139` |  |
| Heat capacity; _printed: Cp, 298.15 K_ | 25.02 per mol-atom | 298.15 | TiNi3; _alloy: Ti 0.25_ | model | [5] Povoden-Karadeniz 2013; _cites Matsumoto 2005_ [doi](https://doi.org/10.2320/matertrans.46.2920) | Table 6, p. 8, row 3; `ORC-TO7LV3HK7P.c35daf` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -3275 unknown | 0 | R-Phase | DFT | [5] Povoden-Karadeniz 2013; _cites Hatcher 2009_ [doi](https://doi.org/10.1103/physrevb.80.144203) | Table 4, p. 5, row 17; `ORC-NLDSG7REDW` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -5114 unknown | 0 | TiNi B19; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Vishnu 2010_ [doi](https://doi.org/10.1016/j.actamat.2009.09.019) | Table 4, p. 5, row 11; `ORC-BXRZOACID3` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -2895 unknown | 0 | TiNi B19; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Huang 2003_ [doi](https://doi.org/10.1038/nmat884) | Table 4, p. 5, row 13; `ORC-CORKSZUGCN` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -3911 unknown | 0 | TiNi B19; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Hatcher 2009_ [doi](https://doi.org/10.1103/physrevb.80.144203) | Table 4, p. 5, row 15; `ORC-FOWZ3QT6TK` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | 6800 unknown | 0 | TiNi B19; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 4, p. 5, row 10; `ORC-HK3MBX7TRH` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | 3600 unknown | 0 | TiNi B19; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 4, p. 5, row 9; `ORC-K7FLGOJQU5` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -3859 unknown | 0 | TiNi B19; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Huang 2003_ [doi](https://doi.org/10.1038/nmat884) | Table 4, p. 5, row 12; `ORC-QEVBEY5ZW5` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -3281 unknown | 0 | TiNi B19; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Ye 1997_ [doi](https://doi.org/10.1103/physrevb.56.3678) | Table 4, p. 5, row 14; `ORC-XBJUXYPVKD` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -1700 unknown | 0 | TiNi B19'; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 4, p. 5, row 1; `ORC-O5UZI5EEU3` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -4052 unknown | 0 | TiNi B19'; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Huang 2003_ [doi](https://doi.org/10.1038/nmat884) | Table 4, p. 5, row 5; `ORC-P4EHNFLWFH` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -4438 unknown | 0 | TiNi B19'; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Ye 1997_ [doi](https://doi.org/10.1103/physrevb.56.3678) | Table 4, p. 5, row 6; `ORC-U5SWCC3LKQ` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -5347 unknown | 0 | TiNi B19'; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Hatcher 2009_ [doi](https://doi.org/10.1103/physrevb.80.144203) | Table 4, p. 5, row 7; `ORC-VMACHNROFF` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -7815 unknown | 0 | TiNi B19'; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Vishnu 2010_ [doi](https://doi.org/10.1016/j.actamat.2009.09.019) | Table 4, p. 5, row 3; `ORC-XHKQKVZL2D` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -4728 unknown | 0 | TiNi B19'; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Huang 2003_ [doi](https://doi.org/10.1038/nmat884) | Table 4, p. 5, row 4; `ORC-Y2SZRYXG7K` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -1800 unknown | 0 | TiNi B19'; _alloy: Ti 0.5_ | DFT | [5] Povoden-Karadeniz 2013; _cites Pasturel 1995_ [doi](https://doi.org/10.1103/physrevb.52.15176) | Table 4, p. 5, row 2; `ORC-YQG4JX73GF` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -928.6 unknown | 298.15 | R-Phase | model | [5] Povoden-Karadeniz 2013 | Table 4, p. 5, row 18; `ORC-CE3V6HS5V4` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -1564.3 unknown | 298.15 | TiNi B19; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 4, p. 5, row 16; `ORC-AWYRP3IPYZ` |  |
| Transition enthalpy; _printed: enthalpy of formation_ | -3001 unknown | 298.15 | TiNi B19'; _alloy: Ti 0.5_ | model | [5] Povoden-Karadeniz 2013 | Table 4, p. 5, row 8; `ORC-3H34JQAVS5` |  |

### Crystal structure (56)

Table: Crystal structure, Ni–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 5.101 Å | 0 | Ni3Ti; _alloy: Ti 0.25_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 1; `ORC-IHDK4DAA7O.cac76b` |  |
| Lattice a; _printed: a_ | 5.1327 Å | 0 | Ni3Ti(D024); _alloy: Ti 0.25_ | DFT | [3] Tokunaga 2004 | Table 2, p. 3, row 11; `ORC-BGQLLISS7T.2078ab` |  |
| Lattice a; _printed: a_ | 3.6255 Å | 0 | Ni3Ti(L12); _alloy: Ti 0.25_ | DFT | [3] Tokunaga 2004 | Table 2, p. 3, row 6; `ORC-CJHZPCCEZV.afba34` |  |
| Lattice a; _printed: a_ | 3.0165 Å | 0 | NiTi(B2); _alloy: Ti 0.5_ | DFT | [3] Tokunaga 2004 | Table 2, p. 3, row 2; `ORC-X2AZQRV6BB.32f54c` |  |
| Lattice a | 3.095 Å | 0 | Ti2Ni3; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 33; `ORC-LIUNWHL5XX.978215` |  |
| Lattice a | 4.398 Å | 0 | Ti2Ni3_L; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 44; `ORC-M6EUW6WCOE.bf488b` |  |
| Lattice a; _printed: a_ | 5.5958 Å | 0 | Ti3Ni(D024); _alloy: Ti 0.75_ | DFT | [3] Tokunaga 2004 | Table 2, p. 3, row 13; `ORC-NE2272HKKI.760edc` |  |
| Lattice a; _printed: a_ | 3.9458 Å | 0 | Ti3Ni(L12); _alloy: Ti 0.75_ | DFT | [3] Tokunaga 2004 | Table 2, p. 3, row 7; `ORC-EZULD3WQWJ.740753` |  |
| Lattice a | 6.72 Å | 0 | Ti3Ni4; _alloy: Ti 0.428571_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 18; `ORC-36E6RTOTLS.491212` |  |
| Lattice a | 3.224 Å |  | UNKNOWN; _alloy: Ni 0.095, Ti 0.905_ | model | [7] Keyzer 2009 | Table 1, p. 3, row 2; `ORC-NQSMHMCSDK.34c830` |  |
| Lattice a | 3.01 Å | 298.15 | (Fe, Ni)Ti; _alloy: Ni 0.52, Ti 0.48_ | model | [7] Keyzer 2009 | Table 1, p. 3, row 7; `ORC-WDC6LCRASA.917b0f` |  |
| Lattice a | 5.101 Å | 298.15 | Ni3Ti (D024); _alloy: Ti 0.25_ | unspecified | [3] Tokunaga 2004 | Table 1, p. 3, row 10; `ORC-PIJ7AINIE5.da0d14` |  |
| Lattice a | 3.007 Å | 298.15 | NiTi (B2); _alloy: Ti 0.5_ | unspecified | [3] Tokunaga 2004 | Table 1, p. 3, row 2; `ORC-SABQIIKH74` |  |
| Lattice a | 3.0954 Å | 298.15 | Ti2Ni3; _alloy: Ti 0.4_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 7; `ORC-C7IGNJNG2Y.fb2abf` |  |
| Lattice a | 4.3985 Å | 298.15 | Ti2Ni3_L; _alloy: Ti 0.4_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 6; `ORC-B6BSMCZNUE.7fe4c0` |  |
| Lattice a | 6.684 Å | 298.15 | Ti3Ni4; _alloy: Ti 0.428571_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 2; `ORC-4EZO2CVYOX.171988` |  |
| Lattice a | 6.71 Å | 298.15 | Ti3Ni4; _alloy: Ti 0.428571_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 5; `ORC-BT3HZKGJZE.b298a3` |  |
| Lattice a | 6.6697 Å | 298.15 | Ti3Ni4; _alloy: Ti 0.428571_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 3; `ORC-S2R3KU2VEN.2ba987` |  |
| Lattice a | 6.718 Å | 298.15 | Ti3Ni4; _alloy: Ti 0.428571_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 4; `ORC-YDURZ2AQ7L.6568e5` |  |
| Lattice a | 3.5568 Å | 298.15 | γ-(Fe, Ni); _alloy: Ni 0.906, Ti 0.094_ | model | [7] Keyzer 2009 | Table 1, p. 3, row 1; `ORC-L4SLJ36CHK.447c88` |  |
| Lattice a | 11.338 Å | 1257.15 (\<) | NiTi2; _alloy: Ni 0.333333, Ti 0.666667_ | model | [7] Keyzer 2009 | Table 1, p. 3, row 10; `ORC-W7NC4V2BDU.26fd0c` |  |
| Lattice a | 11.3193 Å | 1257.15 (\<) | NiTi2; _alloy: Ni 0.333333, Ti 0.666667_ | model | [7] Keyzer 2009 | Table 1, p. 3, row 10; `ORC-W7NC4V2BDU.6eb439` |  |
| Lattice a | 5.103 Å | 1653.15 (\<) | Ni3Ti | model | [7] Keyzer 2009 | Table 1, p. 3, row 9; `ORC-6TRQKQZKFF.d6d250` |  |
| Lattice a | 5.1088 Å | 1653.15 (\<) | Ni3Ti | model | [7] Keyzer 2009 | Table 1, p. 3, row 9; `ORC-6TRQKQZKFF.d8a981` |  |
| Lattice b | 5.101 Å | 0 | Ni3Ti; _alloy: Ti 0.25_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 1; `ORC-IHDK4DAA7O.7a59b7` |  |
| Lattice b | 3.095 Å | 0 | Ti2Ni3; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 33; `ORC-LIUNWHL5XX.e5b539` |  |
| Lattice b | 4.37 Å | 0 | Ti2Ni3_L; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 44; `ORC-M6EUW6WCOE.5fbb86` |  |
| Lattice b | 6.72 Å | 0 | Ti3Ni4; _alloy: Ti 0.428571_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 18; `ORC-36E6RTOTLS.931d42` |  |
| Lattice b | 4.3705 Å | 298.15 | Ti2Ni3_L; _alloy: Ti 0.4_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 6; `ORC-B6BSMCZNUE.803447` |  |
| Lattice c | 8.307 Å | 0 | Ni3Ti; _alloy: Ti 0.25_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 1; `ORC-IHDK4DAA7O.491e45` |  |
| Lattice c; _printed: c_ | 8.3577 Å | 0 | Ni3Ti(D024); _alloy: Ti 0.25_ | DFT | [3] Tokunaga 2004 | Table 2, p. 3, row 11; `ORC-BGQLLISS7T.21dedc` |  |
| Lattice c | 13.585 Å | 0 | Ti2Ni3; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 33; `ORC-LIUNWHL5XX.d7a195` |  |
| Lattice c | 13.544 Å | 0 | Ti2Ni3_L; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 44; `ORC-M6EUW6WCOE.868d18` |  |
| Lattice c; _printed: c_ | 9.0987 Å | 0 | Ti3Ni(D024); _alloy: Ti 0.75_ | DFT | [3] Tokunaga 2004 | Table 2, p. 3, row 13; `ORC-NE2272HKKI.383355` |  |
| Lattice c | 6.72 Å | 0 | Ti3Ni4; _alloy: Ti 0.428571_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 18; `ORC-36E6RTOTLS.31e5fd` |  |
| Lattice c | 8.3067 Å | 298.15 | Ni3Ti (D024); _alloy: Ti 0.25_ | unspecified | [3] Tokunaga 2004 | Table 1, p. 3, row 10; `ORC-PIJ7AINIE5.bbe7fc` |  |
| Lattice c | 13.5852 Å | 298.15 | Ti2Ni3; _alloy: Ti 0.4_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 7; `ORC-C7IGNJNG2Y.56a86e` |  |
| Lattice c | 13.5442 Å | 298.15 | Ti2Ni3_L; _alloy: Ti 0.4_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 6; `ORC-B6BSMCZNUE.787584` |  |
| Lattice c | 8.32 Å | 1653.15 (\<) | Ni3Ti | model | [7] Keyzer 2009 | Table 1, p. 3, row 9; `ORC-6TRQKQZKFF.3d4298` |  |
| Lattice c | 8.3187 Å | 1653.15 (\<) | Ni3Ti | model | [7] Keyzer 2009 | Table 1, p. 3, row 9; `ORC-6TRQKQZKFF.ce5f80` |  |
| lattice alpha | 90 ° | 0 | Ni3Ti; _alloy: Ti 0.25_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 1; `ORC-IHDK4DAA7O.6c5b5e` |  |
| lattice alpha | 90 ° | 0 | Ti2Ni3; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 33; `ORC-LIUNWHL5XX.2d9be1` |  |
| lattice alpha | 90 ° | 0 | Ti2Ni3_L; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 44; `ORC-M6EUW6WCOE.9f97d2` |  |
| lattice alpha | 113.97 ° | 0 | Ti3Ni4; _alloy: Ti 0.428571_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 18; `ORC-36E6RTOTLS.a084fb` |  |
| lattice alpha | 113.93 not_printed | 298.15 | Ti3Ni4; _alloy: Ti 0.428571_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 2; `ORC-4EZO2CVYOX.b940b4` |  |
| lattice alpha | 113.883 not_printed | 298.15 | Ti3Ni4; _alloy: Ti 0.428571_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 5; `ORC-BT3HZKGJZE.ef1bcb` |  |
| lattice alpha | 113.84 not_printed | 298.15 | Ti3Ni4; _alloy: Ti 0.428571_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 3; `ORC-S2R3KU2VEN.02b091` |  |
| lattice alpha | 113.97 not_printed | 298.15 | Ti3Ni4; _alloy: Ti 0.428571_ | unspecified | [5] Povoden-Karadeniz 2013 | Table 1, p. 2, row 4; `ORC-YDURZ2AQ7L.373ba6` |  |
| lattice beta | 90 ° | 0 | Ni3Ti; _alloy: Ti 0.25_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 1; `ORC-IHDK4DAA7O.1442cb` |  |
| lattice beta | 90 ° | 0 | Ti2Ni3; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 33; `ORC-LIUNWHL5XX.9a8ff4` |  |
| lattice beta | 90 ° | 0 | Ti2Ni3_L; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 44; `ORC-M6EUW6WCOE.7024a5` |  |
| lattice beta | 113.97 ° | 0 | Ti3Ni4; _alloy: Ti 0.428571_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 18; `ORC-36E6RTOTLS.681b61` |  |
| lattice gamma | 120 ° | 0 | Ni3Ti; _alloy: Ti 0.25_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 1; `ORC-IHDK4DAA7O.df55fc` |  |
| lattice gamma | 90 ° | 0 | Ti2Ni3; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 33; `ORC-LIUNWHL5XX.7efa60` |  |
| lattice gamma | 90 ° | 0 | Ti2Ni3_L; _alloy: Ti 0.4_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 44; `ORC-M6EUW6WCOE.94fa1d` |  |
| lattice gamma | 113.97 ° | 0 | Ti3Ni4; _alloy: Ti 0.428571_ | DFT | [5] Povoden-Karadeniz 2013 | Table A1, p. 11, row 18; `ORC-36E6RTOTLS.903559` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. K. Santhy, K.C. Hari Kumar, Thermodynamic reassessment of Nb-Ni-Ti system with order–disorder model, Journal of Alloys and Compounds 619, 733-747 (2015). [doi:10.1016/j.jallcom.2014.08.200](https://doi.org/10.1016/j.jallcom.2014.08.200)
2. G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011). [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003)
3. Tatsuya Tokunaga, Koji Hashima, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ni-Si-Ti System Using Thermochemical Properties Determined from Ab Initio Calculations, Mater. Trans. 45, 1507-1514 (2004). [doi:10.2320/matertrans.45.1507](https://doi.org/10.2320/matertrans.45.1507)
4. Biao Hu, Yong Du, J.C. Schuster, Weihua Sun, Shuhong Liu, Chengying Tang, Thermodynamic modeling of the Cr–Ni–Ti system using a four-sublattice model for ordered/disordered bcc phases, Thermochimica Acta 578, 35-42 (2014). [doi:10.1016/j.tca.2014.01.002](https://doi.org/10.1016/j.tca.2014.01.002)
5. E. Povoden-Karadeniz, D.C. Cirstea, P. Lang, T. Wojcik, E. Kozeschnik, Thermodynamics of Ti–Ni shape memory alloys, Calphad 41, 128-139 (2013). [doi:10.1016/j.calphad.2013.02.004](https://doi.org/10.1016/j.calphad.2013.02.004)
6. W. Tang, B. Sundman, R. Sandström, C. Qiu, New modelling of the B2 phase and its associated martensitic transformation in the Ti–Ni system, Acta Materialia 47, 3457-3468 (1999). [doi:10.1016/s1359-6454(99)00193-7](https://doi.org/10.1016/s1359-6454%2899%2900193-7)
7. Jozefien De Keyzer, Gabriele Cacciamani, Nathalie Dupin, Patrick Wollants, Thermodynamic modeling and optimization of the Fe–Ni–Ti system, Calphad 33, 109-123 (2009). [doi:10.1016/j.calphad.2008.10.003](https://doi.org/10.1016/j.calphad.2008.10.003)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0).

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).