# Al–Fe system

> Al–Fe system: 253 accepted literature values (invariant reaction 155, formation 31, heat capacity / entropy / enthalpy 22, phase transition 19) and 11 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/AL-FE.html · Markdown: https://data.orchid-project.org/systems/AL-FE.md

253 accepted literature values from 9 paper(s) (experimental 107, model 112, DFT 21, unspecified 13); 11 calculated phase diagram(s). 17 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/AL-FE.json) · [CSV](https://data.orchid-project.org/systems/AL-FE.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#AL-FE) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-07Zha.json) · [phases (13)](https://data.orchid-project.org/phases/pages/AL-FE.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/AL-FE.html) · [Markdown](https://data.orchid-project.org/systems/AL-FE.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 107 |
| model | 112 |
| DFT | 21 |
| unspecified | 13 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 155 |
| phase transition | 19 |
| phase equilibrium | 15 |
| formation | 31 |
| mixing / partial | 6 |
| heat capacity / entropy / enthalpy | 22 |
| activity / EMF / Gibbs energy | 1 |
| crystal structure | 4 |

## 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 |
|---|---|---|---|
| AlFe-07Zha.tdb | L. Zhang, Y. Du, Calphad, 31, 529-40(2007). [doi:10.1016/j.calphad.2007.03.003](https://doi.org/10.1016/j.calphad.2007.03.003) | `64a98b3da69234a790b1faf937696b4ffd70dbf885a4c9dda2af0fd121d35938` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-07Zha.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-07Zha.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-07Zha.json) |
| AlFe-09Jac.tdb | M.H.G. Jacobs, R. Schmid-Fetzer, Calphad, 33, 170-78(2009). [doi:10.1016/j.calphad.2008.07.010](https://doi.org/10.1016/j.calphad.2008.07.010) | `3a7e20dfdebcf7111cd54058c274a0f8eef5922bc23e245d7216daa4545b7f73` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-09Jac.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-09Jac.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-09Jac.json) |
| AlFe-09Sun-no-option-F.tdb | B. Sundman, I. Ohnuma, N. Dupin, U.R. Kattner, S.G. Fries, Acta Mater., 57, 2896-2908(2009). [doi:10.1016/j.actamat.2009.02.046](https://doi.org/10.1016/j.actamat.2009.02.046) | `884d6fe9e57d8ed3070359cca0e94a13def64865778691cae1700b6b3e5ee075` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-09Sun-no-option-F.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-09Sun-no-option-F.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-09Sun-no-option-F.json) |
| AlFe-09Sun.tdb | B. Sundman, I. Ohnuma, N. Dupin, U.R. Kattner, S.G. Fries, Acta Mater., 57, 2896-2908(2009). [doi:10.1016/j.actamat.2009.02.046](https://doi.org/10.1016/j.actamat.2009.02.046) | `5d81bdcb3a4d8f17612980486163cba99fe8f8b195d242369eaaab87c8f008dd` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-09Sun.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-09Sun.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-09Sun.json) |
| AlFe-15Mie.tdb | J. Miettinen, S. Louhenkilpi, G. Vassilev, J. Phase Equilib. Diffus., 36, 317-26(2015). [doi:10.1007/s11669-015-0383-5](https://doi.org/10.1007/s11669-015-0383-5) | `b767413d93e5b7101bfdc52a40b8576a86911ec804d4556ec5d8320521396148` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-15Mie.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-15Mie.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-15Mie.json) |
| AlFe-17Zhe.tdb | W. Zheng, S. He, M. Selleby, Y. He, L. Li, X.-G. Lu, J. Agren, Calphad, 58, 34-49(2017). [doi:10.1016/j.calphad.2017.05.003](https://doi.org/10.1016/j.calphad.2017.05.003) | `ebe1dc119ebdbd61f4816770bd724ebb0f3589c9426dcf664ac2ae9791a38cfe` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-17Zhe.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-17Zhe.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-17Zhe.json) |
| AlFe-18Zie.tdb | T. Zienert, O. Fabrichnaya, J. Alloys Compd., 743, 795-811(2018). [doi:10.1016/j.jallcom.2018.01.316](https://doi.org/10.1016/j.jallcom.2018.01.316) | `7be8d8a9158e1e624f9de2185cbfb13684569190b4c9b32b63b4fbd17a8f519a` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-18Zie.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-18Zie.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-18Zie.json) |
| AlFe-19Ran.tdb | M. Rank, P. Franke, H.J. Seifert, Int. J. Mater. Res., 110, 406-21(2019). [doi:10.3139/146.111765](https://doi.org/10.3139/146.111765) | `7b14112fd3ae4d9c28eeaf82bd014bac2dc7d01240864e033355e170ba74fb9e` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-19Ran.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-19Ran.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-19Ran.json) |
| AlFe-21Mur.tdb | H. Murdoch, A. Giri, D. Field, E. Hernandez-Rivera, M. Guziewski, Calphad, 75, 102360(2021). [doi:10.1016/j.calphad.2021.102360](https://doi.org/10.1016/j.calphad.2021.102360) | `01ab7de1d7d061d43ce85c7eec2b69ddb2da2697be786914c2781796d42be107` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-21Mur.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-21Mur.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-21Mur.json) |
| AlFe-23Ila.tdb | M. Ilatovskaia, H. Becker, O. Fabrichnaya, A. Leineweber, J. Alloys Compd., 936, 168361(2023). [doi:10.1016/j.jallcom.2022.168361](https://doi.org/10.1016/j.jallcom.2022.168361) | `2210cc1e5240d7500fc61c5b76b62824d379c3651579f2e15d78d23ab5774f10` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-23Ila.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-23Ila.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-23Ila.json) |
| AlFe-93Sei-LB.tdb | M. Seiersten, SINTEF Report STF-28F93051, Oslo, 1993 and COST 507, Final report round 2, 1998 | `565fb0ca7ceedee4e0be6840cbe46ab4aa3171ca5952293bbc3d8b7e69b2027f` | [viewer](https://orchid-project.org/phase-diagrams/#AL-FE/AlFe-93Sei-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlFe-93Sei-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlFe-93Sei-LB.json) |

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

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| AlFe-07Zha.tdb | 1495.55 | LIQUID (x(Fe) 0.40614) + AL5FE4 (x(Fe) 0.42574) + B2_BCC (x(Fe) 0.48431) |
| AlFe-07Zha.tdb | 1427.87 | AL13FE4 (x(Fe) 0.24702) + LIQUID (x(Fe) 0.25882) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-07Zha.tdb | 1427.86 | AL13FE4 (x(Fe) 0.247) + LIQUID (x(Fe) 0.25837) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-07Zha.tdb | 1427.76 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31354) + AL5FE4 (x(Fe) 0.36411) |
| AlFe-07Zha.tdb | 1426.2 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.36497) |
| AlFe-07Zha.tdb | 1367.29 | AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.40356) + B2_BCC (x(Fe) 0.46247) |
| AlFe-07Zha.tdb | 927.43 | FCC_A1 (x(Fe) 2.100e-4) + LIQUID (x(Fe) 0.00848) + AL13FE4 (x(Fe) 0.23705) |
| AlFe-09Jac.tdb | 1500.37 | LIQUID (x(Fe) 0.41969) + AL5FE4 (x(Fe) 0.43508) + B2_BCC (x(Fe) 0.49265) |
| AlFe-09Jac.tdb | 1500.37 | LIQUID (x(Fe) 0.41969) + AL5FE4 (x(Fe) 0.43508) + B2_BCC (x(Fe) 0.49265) |
| AlFe-09Jac.tdb | 1429.96 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31576) + AL5FE4 (x(Fe) 0.36556) |
| AlFe-09Jac.tdb | 1429.96 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31563) + AL5FE4 (x(Fe) 0.36547) |
| AlFe-09Jac.tdb | 1428.16 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.36636) |
| AlFe-09Jac.tdb | 1428.16 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.36638) |
| AlFe-09Jac.tdb | 1424.45 | LIQUID (x(Fe) 0.24189) + AL13FE4 (x(Fe) 0.24695) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-09Jac.tdb | 1424.45 | LIQUID (x(Fe) 0.24199) + AL13FE4 (x(Fe) 0.24695) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-09Jac.tdb | 1357.33 | AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.40839) + B2_BCC (x(Fe) 0.4615) |
| AlFe-09Jac.tdb | 1357.33 | AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.40839) + B2_BCC (x(Fe) 0.4615) |
| AlFe-09Jac.tdb | 927.06 | FCC_A1 (x(Fe) 9.000e-5) + LIQUID (x(Fe) 0.00885) + AL13FE4 (x(Fe) 0.23724) |
| AlFe-09Jac.tdb | 485.66 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + B2_BCC (x(Fe) 0.49889) |
| AlFe-09Jac.tdb | 485.66 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + B2_BCC (x(Fe) 0.4989) |
| AlFe-09Jac.tdb | 485.66 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + B2_BCC (x(Fe) 0.49889) |
| AlFe-09Sun-no-option-F.tdb | 1490.77 | LIQUID (x(Fe) 0.39167) + AL8FE5_D82 (x(Fe) 0.41608) + B2_BCC (x(Fe) 0.48525) |
| AlFe-09Sun-no-option-F.tdb | 1490.77 | LIQUID (x(Fe) 0.39167) + AL8FE5_D82 (x(Fe) 0.41608) + B2_BCC (x(Fe) 0.48525) |
| AlFe-09Sun-no-option-F.tdb | 1427.03 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31524) + AL8FE5_D82 (x(Fe) 0.375) |
| AlFe-09Sun-no-option-F.tdb | 1427.03 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31521) + AL8FE5_D82 (x(Fe) 0.37498) |
| AlFe-09Sun-no-option-F.tdb | 1426.29 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.37524) |
| AlFe-09Sun-no-option-F.tdb | 1423.96 | LIQUID (x(Fe) 0.24752) + AL13FE4 (x(Fe) 0.24779) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-09Sun-no-option-F.tdb | 1423.96 | LIQUID (x(Fe) 0.24755) + AL13FE4 (x(Fe) 0.24779) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-09Sun-no-option-F.tdb | 1381.45 | AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.39765) + B2_BCC (x(Fe) 0.4709) |
| AlFe-09Sun-no-option-F.tdb | 1381.45 | AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.39762) + B2_BCC (x(Fe) 0.47088) |
| AlFe-09Sun-no-option-F.tdb | 1245.18 | AL2FE (x(Fe) 0.33333) + BCC_4SL (x(Fe) 0.49251) + B2_BCC (x(Fe) 0.49435) |
| AlFe-09Sun-no-option-F.tdb | 1245.18 | AL2FE (x(Fe) 0.33333) + BCC_4SL (x(Fe) 0.49251) + B2_BCC (x(Fe) 0.49435) |
| AlFe-09Sun-no-option-F.tdb | 927.06 | FCC_A1 (x(Fe) 2.200e-4) + LIQUID (x(Fe) 0.00889) + AL13FE4 (x(Fe) 0.23763) |
| AlFe-09Sun-no-option-F.tdb | 927.06 | FCC_4SL (x(Fe) 2.200e-4) + LIQUID (x(Fe) 0.00889) + AL13FE4 (x(Fe) 0.23763) |
| AlFe-09Sun.tdb | 1490.77 | LIQUID (x(Fe) 0.39166) + AL8FE5_D82 (x(Fe) 0.41608) + B2_BCC (x(Fe) 0.48525) |
| AlFe-09Sun.tdb | 1427.03 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31524) + AL8FE5_D82 (x(Fe) 0.375) |
| AlFe-09Sun.tdb | 1426.29 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.37524) |
| AlFe-09Sun.tdb | 1423.96 | LIQUID (x(Fe) 0.24752) + AL13FE4 (x(Fe) 0.24779) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-09Sun.tdb | 1423.96 | LIQUID (x(Fe) 0.24755) + AL13FE4 (x(Fe) 0.24779) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-09Sun.tdb | 1381.46 | AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.39765) + B2_BCC (x(Fe) 0.4709) |
| AlFe-09Sun.tdb | 1245.11 | AL2FE (x(Fe) 0.33333) + BCC_4SL (x(Fe) 0.49252) + B2_BCC (x(Fe) 0.49435) |
| AlFe-09Sun.tdb | 927.06 | FCC_4SL (x(Fe) 2.200e-4) + LIQUID (x(Fe) 0.00889) + AL13FE4 (x(Fe) 0.23763) |
| AlFe-15Mie.tdb | 1501.79 | LIQUID (x(Fe) 0.39918) + AL5FE4 (x(Fe) 0.43179) + BCC_A2 (x(Fe) 0.47907) |
| AlFe-15Mie.tdb | 1430.68 | LIQUID (x(Fe) 0.31145) + AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.3723) |
| AlFe-15Mie.tdb | 1430.16 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.30918) + AL2FE (x(Fe) 0.33333) |
| AlFe-15Mie.tdb | 1424.56 | LIQUID (x(Fe) 0.2448) + AL13FE4 (x(Fe) 0.248) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-15Mie.tdb | 1424.56 | LIQUID (x(Fe) 0.24532) + AL13FE4 (x(Fe) 0.248) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-15Mie.tdb | 1363.99 | AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.4102) + BCC_A2 (x(Fe) 0.44948) |
| AlFe-15Mie.tdb | 929.36 | FCC_A1 (x(Fe) 2.500e-4) + LIQUID (x(Fe) 0.0061) + AL13FE4 (x(Fe) 0.248) |
| AlFe-15Mie.tdb | 929.36 | FCC_A1 (x(Fe) 2.500e-4) + LIQUID (x(Fe) 0.00601) + AL13FE4 (x(Fe) 0.248) |
| AlFe-17Zhe.tdb | 1667.47 | FCC_4SL (x(Fe) 1) + B2_BCC (x(Fe) 1) + BCC_A2 (x(Fe) 1) |
| AlFe-17Zhe.tdb | 1540.46 | LIQUID (x(Fe) 0.43423) + BCC_4SL (x(Fe) 0.51065) + B2_BCC (x(Fe) 0.51155) |
| AlFe-17Zhe.tdb | 1506.1 | LIQUID (x(Fe) 0.40369) + AL8FE5_D82 (x(Fe) 0.42267) + BCC_4SL (x(Fe) 0.49069) |
| AlFe-17Zhe.tdb | 1428.81 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.30203) + AL8FE5_D82 (x(Fe) 0.36266) |
| AlFe-17Zhe.tdb | 1428.81 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.30183) + AL8FE5_D82 (x(Fe) 0.36256) |
| AlFe-17Zhe.tdb | 1422.51 | LIQUID (x(Fe) 0.24665) + AL13FE4 (x(Fe) 0.24775) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-17Zhe.tdb | 1422.51 | LIQUID (x(Fe) 0.24686) + AL13FE4 (x(Fe) 0.24776) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-17Zhe.tdb | 1416.9 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.36749) |
| AlFe-17Zhe.tdb | 1416.9 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.36721) |
| AlFe-17Zhe.tdb | 1416.9 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.36753) |
| AlFe-17Zhe.tdb | 1370.24 | AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.39569) + BCC_4SL (x(Fe) 0.47196) |
| AlFe-17Zhe.tdb | 1184.81 | FCC_4SL (x(Fe) 1) + B2_BCC (x(Fe) 1) + BCC_4SL (x(Fe) 1) |
| AlFe-17Zhe.tdb | 926.44 | FCC_4SL (x(Fe) 2.800e-4) + LIQUID (x(Fe) 0.00968) + AL13FE4 (x(Fe) 0.23763) |
| AlFe-18Zie.tdb | 1667.47 | FCC_A1 (x(Fe) 1) + B2_BCC (x(Fe) 1) + BCC_A2 (x(Fe) 1) |
| AlFe-18Zie.tdb | 1503.8 | LIQUID (x(Fe) 0.4177) + AL8FE5_D82 (x(Fe) 0.44414) + B2_BCC (x(Fe) 0.48874) |
| AlFe-18Zie.tdb | 1503.8 | LIQUID (x(Fe) 0.4177) + AL8FE5_D82 (x(Fe) 0.44414) + B2_BCC (x(Fe) 0.48874) |
| AlFe-18Zie.tdb | 1429.18 | AL5FE2 (x(Fe) 0.29435) + LIQUID (x(Fe) 0.31763) + AL8FE5_D82 (x(Fe) 0.34907) |
| AlFe-18Zie.tdb | 1422.56 | AL13FE4 (x(Fe) 0.24837) + LIQUID (x(Fe) 0.24961) + AL5FE2 (x(Fe) 0.28831) |
| AlFe-18Zie.tdb | 1418.59 | AL5FE2 (x(Fe) 0.29496) + AL2FE (x(Fe) 0.32943) + AL8FE5_D82 (x(Fe) 0.35532) |
| AlFe-18Zie.tdb | 1372.95 | AL2FE (x(Fe) 0.34361) + AL8FE5_D82 (x(Fe) 0.39171) + B2_BCC (x(Fe) 0.45451) |
| AlFe-18Zie.tdb | 1372.95 | AL2FE (x(Fe) 0.34361) + AL8FE5_D82 (x(Fe) 0.39171) + B2_BCC (x(Fe) 0.45451) |
| AlFe-18Zie.tdb | 1184.81 | FCC_A1 (x(Fe) 1) + B2_BCC (x(Fe) 1) + BCC_A2 (x(Fe) 1) |
| AlFe-18Zie.tdb | 922.63 | FCC_A1 (x(Fe) 6.000e-4) + LIQUID (x(Fe) 0.01492) + AL13FE4 (x(Fe) 0.23649) |
| AlFe-18Zie.tdb | 342.45 | AL5FE2 (x(Fe) 0.29978) + AL2FE (x(Fe) 0.34275) + B2_BCC (x(Fe) 0.49951) |
| AlFe-18Zie.tdb | 342.45 | AL5FE2 (x(Fe) 0.29978) + AL2FE (x(Fe) 0.34275) + B2_BCC (x(Fe) 0.49951) |
| AlFe-19Ran.tdb | 1504.76 | LIQUID (x(Fe) 0.41138) + AL8FE5_D82 (x(Fe) 0.42858) + B2_BCC (x(Fe) 0.49968) |
| AlFe-19Ran.tdb | 1429.3 | AL5FE2 (x(Fe) 0.30399) + LIQUID (x(Fe) 0.3069) + AL8FE5_D82 (x(Fe) 0.36227) |
| AlFe-19Ran.tdb | 1423.72 | LIQUID (x(Fe) 0.25704) + AL13FE4 (x(Fe) 0.26518) + AL5FE2 (x(Fe) 0.28216) |
| AlFe-19Ran.tdb | 1420 | AL5FE2 (x(Fe) 0.3076) + AL2FE (x(Fe) 0.34065) + AL8FE5_D82 (x(Fe) 0.36784) |
| AlFe-19Ran.tdb | 1367.89 | AL2FE (x(Fe) 0.35292) + AL8FE5_D82 (x(Fe) 0.40728) + B2_BCC (x(Fe) 0.48118) |
| AlFe-19Ran.tdb | 925.98 | FCC_A1 (x(Fe) 2.300e-4) + LIQUID (x(Fe) 0.01004) + AL13FE4 (x(Fe) 0.23435) |
| AlFe-21Mur.tdb | 1490.77 | LIQUID (x(Fe) 0.39167) + AL8FE5_D82 (x(Fe) 0.41608) + B2_BCC (x(Fe) 0.48525) |
| AlFe-21Mur.tdb | 1427.03 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31524) + AL8FE5_D82 (x(Fe) 0.375) |
| AlFe-21Mur.tdb | 1426.29 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.37524) |
| AlFe-21Mur.tdb | 1423.96 | LIQUID (x(Fe) 0.24752) + AL13FE4 (x(Fe) 0.24779) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-21Mur.tdb | 1423.96 | LIQUID (x(Fe) 0.24755) + AL13FE4 (x(Fe) 0.24779) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-21Mur.tdb | 1381.45 | AL2FE (x(Fe) 0.33333) + AL8FE5_D82 (x(Fe) 0.39765) + B2_BCC (x(Fe) 0.47089) |
| AlFe-21Mur.tdb | 1245.12 | AL2FE (x(Fe) 0.33333) + BCC_4SL (x(Fe) 0.49251) + B2_BCC (x(Fe) 0.49435) |
| AlFe-21Mur.tdb | 927.06 | FCC_A1 (x(Fe) 2.200e-4) + LIQUID (x(Fe) 0.00889) + AL13FE4 (x(Fe) 0.23763) |
| AlFe-21Mur.tdb | 927.06 | FCC_4SL (x(Fe) 2.200e-4) + LIQUID (x(Fe) 0.00889) + AL13FE4 (x(Fe) 0.23763) |
| AlFe-23Ila.tdb | 1667.47 | FCC_A1 (x(Fe) 1) + B2_BCC (x(Fe) 1) + BCC_A2 (x(Fe) 1) |
| AlFe-23Ila.tdb | 1504.46 | LIQUID (x(Fe) 0.4188) + AL8FE5_D82 (x(Fe) 0.43409) + B2_BCC (x(Fe) 0.48972) |
| AlFe-23Ila.tdb | 1504.46 | LIQUID (x(Fe) 0.4188) + AL8FE5_D82 (x(Fe) 0.43409) + B2_BCC (x(Fe) 0.48972) |
| AlFe-23Ila.tdb | 1429.24 | AL5FE2 (x(Fe) 0.30864) + LIQUID (x(Fe) 0.32965) + AL8FE5_D82 (x(Fe) 0.36579) |
| AlFe-23Ila.tdb | 1426.68 | LIQUID (x(Fe) 0.25299) + AL13FE4 (x(Fe) 0.25531) + AL5FE2 (x(Fe) 0.28266) |
| AlFe-23Ila.tdb | 1418.55 | AL5FE2 (x(Fe) 0.31223) + AL2FE (x(Fe) 0.33383) + AL8FE5_D82 (x(Fe) 0.3768) |
| AlFe-23Ila.tdb | 1372.73 | AL2FE (x(Fe) 0.34416) + AL8FE5_D82 (x(Fe) 0.41076) + B2_BCC (x(Fe) 0.45615) |
| AlFe-23Ila.tdb | 1372.73 | AL2FE (x(Fe) 0.34416) + AL8FE5_D82 (x(Fe) 0.41076) + B2_BCC (x(Fe) 0.45615) |
| AlFe-23Ila.tdb | 1184.81 | FCC_A1 (x(Fe) 1) + B2_BCC (x(Fe) 1) + BCC_A2 (x(Fe) 1) |
| AlFe-23Ila.tdb | 922.85 | FCC_A1 (x(Fe) 5.200e-4) + LIQUID (x(Fe) 0.0146) + AL13FE4 (x(Fe) 0.23714) |
| AlFe-23Ila.tdb | 358.1 | AL13FE4 (x(Fe) 0.24372) + AL5FE2 (x(Fe) 0.27318) + AL2FE (x(Fe) 0.34008) |
| AlFe-23Ila.tdb | 318.72 | AL13FE4 (x(Fe) 0.24481) + AL2FE (x(Fe) 0.34563) + B2_BCC (x(Fe) 0.49988) |
| AlFe-23Ila.tdb | 318.72 | AL13FE4 (x(Fe) 0.24481) + AL2FE (x(Fe) 0.34563) + B2_BCC (x(Fe) 0.49988) |
| AlFe-93Sei-LB.tdb | 1495.51 | LIQUID (x(Fe) 0.40602) + AL5FE4 (x(Fe) 0.42566) + B2_BCC (x(Fe) 0.4839) |
| AlFe-93Sei-LB.tdb | 1495.51 | LIQUID (x(Fe) 0.40602) + AL5FE4 (x(Fe) 0.42566) + B2_BCC (x(Fe) 0.4839) |
| AlFe-93Sei-LB.tdb | 1429.96 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31576) + AL5FE4 (x(Fe) 0.36556) |
| AlFe-93Sei-LB.tdb | 1429.96 | AL5FE2 (x(Fe) 0.28571) + LIQUID (x(Fe) 0.31549) + AL5FE4 (x(Fe) 0.36538) |
| AlFe-93Sei-LB.tdb | 1428.16 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.36636) |
| AlFe-93Sei-LB.tdb | 1428.16 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.36638) |
| AlFe-93Sei-LB.tdb | 1424.45 | LIQUID (x(Fe) 0.24189) + AL13FE4 (x(Fe) 0.24695) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-93Sei-LB.tdb | 1424.45 | LIQUID (x(Fe) 0.24201) + AL13FE4 (x(Fe) 0.24695) + AL5FE2 (x(Fe) 0.28571) |
| AlFe-93Sei-LB.tdb | 1368.18 | AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.40355) + B2_BCC (x(Fe) 0.46214) |
| AlFe-93Sei-LB.tdb | 1368.18 | AL2FE (x(Fe) 0.33333) + AL5FE4 (x(Fe) 0.40355) + B2_BCC (x(Fe) 0.46214) |
| AlFe-93Sei-LB.tdb | 927.15 | FCC_A1 (x(Fe) 2.200e-4) + LIQUID (x(Fe) 0.00885) + AL13FE4 (x(Fe) 0.23724) |
| AlFe-93Sei-LB.tdb | 374.04 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + B2_BCC (x(Fe) 0.5006) |
| AlFe-93Sei-LB.tdb | 374.04 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + B2_BCC (x(Fe) 0.5006) |
| AlFe-93Sei-LB.tdb | 374.04 | AL5FE2 (x(Fe) 0.28571) + AL2FE (x(Fe) 0.33333) + B2_BCC (x(Fe) 0.5006) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/AL/AL-FE.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/AL/AL-FE.json) · [CALPHAD hull AlFe-07Zha](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-07Zha.json) · [CALPHAD hull AlFe-09Jac](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-09Jac.json) · [CALPHAD hull AlFe-09Sun-no-option-F](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-09Sun-no-option-F.json) · [CALPHAD hull AlFe-09Sun](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-09Sun.json) · [CALPHAD hull AlFe-15Mie](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-15Mie.json) · [CALPHAD hull AlFe-17Zhe](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-17Zhe.json) · [CALPHAD hull AlFe-18Zie](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-18Zie.json) · [CALPHAD hull AlFe-19Ran](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-19Ran.json) · [CALPHAD hull AlFe-21Mur](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-21Mur.json) · [CALPHAD hull AlFe-93Sei-LB](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-FE--AlFe-93Sei-LB.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Al–Fe system (155)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1507.07 | L + B2 -> ε |  | experimental | [1] Zienert 2018 | Table 5, p. 14, row 22; `ORC-7CVPRK6265` |  |
| 1507 | \*L + B2 -> ε |  | experimental | [1] Zienert 2018 | Table 1, p. 6, row 3; `ORC-NTKKPE5VQV.26d282` |  |
| 1507 | B2 + ε -> L + B2 | B2: Fe 0.44 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 2; `ORC-NTKKPE5VQV.87a764` |  |
| 1506 | L + B2 -> ε |  | model | [1] Zienert 2018; _cites Zheng 2017_ [doi](https://doi.org/10.1016/j.calphad.2017.05.003) | Table 5, p. 14, row 45; `ORC-TXJX3ZMNXT` |  |
| 1506 | L+B2->ε | L: Fe 0.411; B2: Fe 0.481; ε: Fe 0.434 | model | [2] Ilatovskaia 2023; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 2, p. 6, row 4; `ORC-UUH6UJLYLD` |  |
| 1505.75 | L + B2 -> ε |  | experimental | [1] Zienert 2018; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 5, p. 14, row 12; `ORC-BWDB6BY7TS` |  |
| 1505.2 | Liq + bcc_B2 = ε |  | model | [3] Jacobs 2009; _cites Kattner 1993_ | Table 2, p. 4, row 29; `ORC-E7BCTMECHW` |  |
| 1505.03 | L + B2 -> ε |  | unspecified | [1] Zienert 2018 | Table 5, p. 14, row 51; `ORC-PFJ2NCQJXG` |  |
| 1505 | L+B2->ε | L: Fe 0.419; B2: Fe 0.49; ε: Fe 0.446 | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 2, p. 6, row 2; `ORC-NUJNAZ6ZQ6` |  |
| 1505 | L+B2->ε | L: Fe 0.414; B2: Fe 0.5; ε: Fe 0.432 | model | [2] Ilatovskaia 2023; _cites Rank 2019_ [doi](https://doi.org/10.3139/146.111765) | Table 2, p. 6, row 3; `ORC-T77TDQHLHY` |  |
| 1504.15 | L + B2 -> ε |  | experimental | [1] Zienert 2018; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 5, p. 14, row 17; `ORC-PU7SGTFYL2` |  |
| 1504.1 | L + B2 -> ε |  | experimental | [1] Zienert 2018; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 5, p. 14, row 6; `ORC-547KWH2ARU` |  |
| 1504.1 | Liq + bcc_B2 = ε |  | experimental | [3] Jacobs 2009; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 2, p. 4, row 30; `ORC-BLGV5BHH42` |  |
| 1504 | L+B2->ε | L: Fe 0.407; ε: Fe 0.44 | model | [2] Ilatovskaia 2023; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 2, p. 6, row 5; `ORC-2S24KYSGJG` |  |
| 1504 | L+B2->ε | L: Fe 0.419; B2: Fe 0.49; ε: Fe 0.434 | model | [2] Ilatovskaia 2023 | Table 2, p. 6, row 1; `ORC-T66PMUTS3H` |  |
| 1501.9 | L + B2 -> ε |  | experimental | [1] Zienert 2018; _cites Lee 1960_ | Table 5, p. 14, row 1; `ORC-5XC7MAQ474` |  |
| 1501.7 | Liq + bcc_B2 = ε |  | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 28; `ORC-QXBJT4EW7A` |  |
| 1501.2 | L + B2 -> ε |  | model | [1] Zienert 2018; _cites Jacobs 2009_ | Table 5, p. 14, row 27; `ORC-P5S2VLET5T` |  |
| 1501.2 | peritectic: Liq + bcc_B2 = ε | Liq: Fe 0.422; bcc_B2: Fe 0.495; ε: Fe 0.437 | model | [3] Jacobs 2009 | Table 2, p. 4, row 25; `ORC-SDBL4DM7T6` |  |
| 1501 | L + B2 -> ε |  | model | [1] Zienert 2018; _cites Phan 2014_ [doi](https://doi.org/10.1016/j.actamat.2014.07.006) | Table 5, p. 14, row 39; `ORC-JP7JCAFDUP` |  |
| 1500.6 | peritectic: Liq + bcc_B2 = ε | Liq: Fe 0.42; bcc_B2: Fe 0.493; ε: Fe 0.435 | model | [3] Jacobs 2009 | Table 2, p. 4, row 26; `ORC-XLZQ5HFYJR` |  |
| 1495.5 | peritectic: Liquid + bcc-B2 -> Al5Fe4 | L: Fe 0.405; bcc-B2: Fe 0.483; Al5Fe4: Fe 0.425 | model | [4] (ed.) 1998 | Table I, p. 54, row 6; `ORC-G6FQ6LGBZG` |  |
| 1495.5 | peritectic: Liq + bcc_B2 = ε | Liq: Fe 0.405; bcc_B2: Fe 0.483; ε: Fe 0.425 | model | [3] Jacobs 2009; _cites Seierstein 1998_ | Table 2, p. 4, row 27; `ORC-MHPNKFKMKP` |  |
| 1495.44 | L + B2 -> ε |  | model | [1] Zienert 2018; _cites Sundman 2009_ [doi](https://doi.org/10.1016/j.actamat.2009.02.046) | Table 5, p. 14, row 34; `ORC-4DAGTW3TX5` |  |
| 1442 | congruent melting: Fe2Al5 = liq | Fe2Al5: Fe 0.286; liq: Fe 0.286 | model | [3] Jacobs 2009; _cites Kattner 1993_ | Table 2, p. 4, row 9; `ORC-V6OYGIED64` |  |
| 1438.2 | Liq = Fe2Al5 + ε | Fe2Al5: Al 0.714286, Fe 0.285714 | model | [3] Jacobs 2009; _cites Kattner 1993_ | Table 2, p. 4, row 14; `ORC-LAF5ACTD7G` |  |
| 1434.7 | congruent melting: L -> η | L: Al 0.714286, Fe 0.285714; η: Al 0.714286, Fe 0.285714 | model | [1] Zienert 2018; _cites Jacobs 2009_ | Table 5, p. 14, row 31; `ORC-TYPA5RVYJR` |  |
| 1434.7 | congruent melting: Fe2Al5 = liq | Fe2Al5: Fe 0.286; liq: Fe 0.286 | model | [3] Jacobs 2009 | Table 2, p. 4, row 7; `ORC-UYFJA3LUJ5` |  |
| 1434.5 | congruent melting: Al5Fe2 -> Liquid | Al5Fe2: Fe 0.286; L: Fe 0.286 | model | [4] (ed.) 1998 | Table I, p. 54, row 2; `ORC-4FGISSC7JF` |  |
| 1434.5 | congruent melting: Fe2Al5 = liq | Fe2Al5: Fe 0.286; liq: Fe 0.286 | model | [3] Jacobs 2009; _cites Seierstein 1998_ | Table 2, p. 4, row 8; `ORC-7K2ZM6VWA6` |  |
| 1433 | Liq + Fe2Al5 = FeAl3 | Fe2Al5: Al 0.714286, Fe 0.285714; FeAl3: Al 0.75, Fe 0.25 | model | [3] Jacobs 2009; _cites Kattner 1993_ | Table 2, p. 4, row 19; `ORC-3LDQXR2EHQ` |  |
| 1432.88 | congruent melting: L -> η | L: Al 0.714286, Fe 0.285714; η: Al 0.714286, Fe 0.285714 | unspecified | [1] Zienert 2018 | Table 5, p. 14, row 55; `ORC-YPEPHTHKLH` |  |
| 1432 | ε + η -> L + ε | ε: Fe 0.33; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 13; `ORC-KDIJ77FNAY` |  |
| 1431 | ε + η -> L + ε | ε: Fe 0.335; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 12; `ORC-A2HP3LC5AY` |  |
| 1430.27 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | experimental | [1] Zienert 2018 | Table 5, p. 14, row 23; `ORC-OY4SC5VEBN` |  |
| 1430.25 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | experimental | [1] Zienert 2018; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 5, p. 14, row 13; `ORC-EDYC5P7L2M` |  |
| 1430.1 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | model | [1] Zienert 2018; _cites Jacobs 2009_ | Table 5, p. 14, row 28; `ORC-PQMHG4KSFE` |  |
| 1430.1 | congruent melting: L -> η | L: Al 0.714286, Fe 0.285714; η: Al 0.714286, Fe 0.285714 | experimental | [1] Zienert 2018; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 5, p. 14, row 10; `ORC-RMRVEIMK3Z` |  |
| 1430.1 | eutectic: Liq = Fe2Al5 + ε | Liq: Fe 0.316; Fe2Al5: Fe 0.286; ε: Fe 0.366 | model | [3] Jacobs 2009 | Table 2, p. 4, row 11; `ORC-S3DEE4FLSR` |  |
| 1430 | ε + η -> L + ε | ε: Fe 0.32; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 16; `ORC-6KSIWA2HES.0af83a` |  |
| 1430 | \*L -> ε + η | η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 17; `ORC-6KSIWA2HES.4c624a` |  |
| 1430 | ε + η -> L + ε | ε: Fe 0.341; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 14; `ORC-6KSIWA2HES.a8c0fc` |  |
| 1430 | congruent melting: Fe2Al5 = liq | Fe2Al5: Fe 0.286; liq: Fe 0.286 | experimental | [3] Jacobs 2009; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 2, p. 4, row 10; `ORC-ATH6QWTJNP` |  |
| 1430 | eutectic: Liq = Fe2Al5 + ε | Liq: Fe 0.316; Fe2Al5: Fe 0.286; ε: Fe 0.365 | model | [3] Jacobs 2009; _cites Seierstein 1998_ | Table 2, p. 4, row 12; `ORC-FBQL43NRW5` |  |
| 1430 | eutectic: L->ε + η | L: Fe 0.323; ε: Fe 0.363; η: Fe 0.317 | model | [2] Ilatovskaia 2023; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 2, p. 6, row 9; `ORC-PX4YLDKPZ7` |  |
| 1430 | eutectic: Liquid -> Al5Fe2 + Al5Fe4 | L: Fe 0.316; Al5Fe2: Fe 0.286; Al5Fe4: Fe 0.365 | model | [4] (ed.) 1998 | Table I, p. 54, row 3; `ORC-SIPLHGI6OS` |  |
| 1429.2 | Fe2Al5 + ε = FeAl2 | Fe2Al5: Al 0.714286, Fe 0.285714; FeAl2: Al 0.666667, Fe 0.333333 | model | [3] Jacobs 2009; _cites Kattner 1993_ | Table 2, p. 4, row 34; `ORC-Q32FJP7KXK` |  |
| 1429.18 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | unspecified | [1] Zienert 2018 | Table 5, p. 14, row 52; `ORC-6QAT4UU6WW` |  |
| 1429 | eutectic: L->ε + η | L: Fe 0.311; ε: Fe 0.368; η: Fe 0.305 | model | [2] Ilatovskaia 2023; _cites Rank 2019_ [doi](https://doi.org/10.3139/146.111765) | Table 2, p. 6, row 8; `ORC-3HRNRDRADE` |  |
| 1429 | eutectic: L->ε + η | L: Fe 0.33; ε: Fe 0.366; η: Fe 0.309 | model | [2] Ilatovskaia 2023 | Table 2, p. 6, row 6; `ORC-AAVLBRTI77` |  |
| 1429 | ε + η -> L + ε | ε: Fe 0.341; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 15; `ORC-L5BK3Y24OY` |  |
| 1429 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | model | [1] Zienert 2018; _cites Zheng 2017_ [doi](https://doi.org/10.1016/j.calphad.2017.05.003) | Table 5, p. 14, row 46; `ORC-TN5NT33S5E` |  |
| 1429 | eutectic: L->ε + η | L: Fe 0.318; ε: Fe 0.349; η: Fe 0.294 | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 2, p. 6, row 7; `ORC-YSP4XVTW2I` |  |
| 1428.65 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | experimental | [1] Zienert 2018; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 5, p. 14, row 18; `ORC-ZYEQGTY2CI` |  |
| 1428.2 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | model | [1] Zienert 2018; _cites Jacobs 2009_ | Table 5, p. 14, row 29; `ORC-HNOCUWGATH` |  |
| 1428.2 | peritectoid: Fe2Al5 + ε = FeAl2 | Fe2Al5: Fe 0.286; ε: Fe 0.366; FeAl2: Fe 0.333 | model | [3] Jacobs 2009 | Table 2, p. 4, row 31; `ORC-WVA6EFVSLA` |  |
| 1428.1 | peritectoid: Al5Fe2 + Al5Fe4 -> Al2Fe | Al5Fe2: Fe 0.286; Al5Fe4: Fe 0.366; Al2Fe: Fe 0.333 | model | [4] (ed.) 1998 | Table I, p. 54, row 7; `ORC-3TJIAAKH4O` |  |
| 1428.1 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | experimental | [1] Zienert 2018; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 5, p. 14, row 7; `ORC-NYYU546GBE` |  |
| 1428.1 | peritectoid: Fe2Al5 + ε = FeAl2 | Fe2Al5: Fe 0.286; ε: Fe 0.366; FeAl2: Fe 0.333 | model | [3] Jacobs 2009; _cites Seierstein 1998_ | Table 2, p. 4, row 32; `ORC-R3QBZZDKZR` |  |
| 1428 | eutectic: L->ε + η | L: Fe 0.316; ε: Fe 0.356; η: Fe 0.301 | model | [2] Ilatovskaia 2023; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 2, p. 6, row 10; `ORC-JQQ54QSMZN` |  |
| 1428 | Liq = Fe2Al5 + ε | Fe2Al5: Al 0.714286, Fe 0.285714 | experimental | [3] Jacobs 2009; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 2, p. 4, row 15; `ORC-LFHERFEYMX` |  |
| 1427.03 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | model | [1] Zienert 2018; _cites Sundman 2009_ [doi](https://doi.org/10.1016/j.actamat.2009.02.046) | Table 5, p. 14, row 35; `ORC-L5TEGU2Z3Y` |  |
| 1427 | L+ η->θ | L: Fe 0.253; η: Fe 0.2827; θ: Fe 0.2553 | model | [2] Ilatovskaia 2023 | Table 2, p. 6, row 11; `ORC-WHUGGOCEEM` |  |
| 1426.6 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | experimental | [1] Zienert 2018; _cites Lee 1960_ | Table 5, p. 14, row 2; `ORC-SHE652PMC4` |  |
| 1426.29 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | model | [1] Zienert 2018; _cites Sundman 2009_ [doi](https://doi.org/10.1016/j.actamat.2009.02.046) | Table 5, p. 14, row 36; `ORC-G6LFVOJ4QM` |  |
| 1426 | eutectic: L -> ε + η | η: Al 0.714286, Fe 0.285714 | model | [1] Zienert 2018; _cites Phan 2014_ [doi](https://doi.org/10.1016/j.actamat.2014.07.006) | Table 5, p. 14, row 40; `ORC-45W6AEOZRD` |  |
| 1426 | η + θ -> L + η | η: Fe 0.283; θ: Fe 0.235294 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 19; `ORC-NR6UYP3UWH` |  |
| 1425.9 | Liq = Fe2Al5 + ε | Fe2Al5: Al 0.714286, Fe 0.285714 | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 13; `ORC-LMP2HZDGFA` |  |
| 1425.24 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | experimental | [1] Zienert 2018 | Table 5, p. 14, row 26; `ORC-26LB6G5OUX` |  |
| 1425 | η + θ -> L + η | η: Fe 0.273; θ: Fe 0.235294 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 20; `ORC-435P4ZZA3N.0f918c` |  |
| 1425 | ε + ζ -> ε + η | ε: Fe 0.341; ζ: Fe 0.333333; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 23; `ORC-435P4ZZA3N.2a15e1` |  |
| 1425 | \*L + η -> θ | η: Fe 0.285714; θ: Fe 0.235294 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 22; `ORC-435P4ZZA3N.89741b` |  |
| 1425 | η + θ -> L + η | η: Fe 0.263; θ: Fe 0.235294 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 21; `ORC-435P4ZZA3N.f0673f` |  |
| 1424.6 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | model | [1] Zienert 2018; _cites Jacobs 2009_ | Table 5, p. 14, row 32; `ORC-P6AZQABOQC` |  |
| 1424.6 | peritectic: Liq + Fe2Al5 = FeAl3 | Liq: Fe 0.242; Fe2Al5: Fe 0.286; FeAl3: Fe 0.247 | model | [3] Jacobs 2009 | Table 2, p. 4, row 16; `ORC-SBWIK43QYZ` |  |
| 1424.4 | peritectic: Liq + Fe2Al5 = FeAl3 | Liq: Fe 0.242; Fe2Al5: Fe 0.286; FeAl3: Fe 0.247 | model | [3] Jacobs 2009; _cites Seierstein 1998_ | Table 2, p. 4, row 17; `ORC-3Z6HRVQZJ6` |  |
| 1424.4 | peritectic: Liquid + Al5Fe2 -> Al13Fe4 | L: Fe 0.242; Al5Fe2: Fe 0.286; Al13Fe4: Fe 0.247 | model | [4] (ed.) 1998 | Table I, p. 54, row 4; `ORC-YFJKJQJLK6` |  |
| 1424.35 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | experimental | [1] Zienert 2018; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 5, p. 14, row 16; `ORC-JEO3ZI5JDZ` |  |
| 1424 | ε + ζ -> ε + η | ε: Fe 0.341; ζ: Fe 0.333333; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 24; `ORC-BJXRXMGLDB` |  |
| 1424 | L+ η->θ | L: Fe 0.257; η: Fe 0.286; θ: Fe 0.262 | model | [2] Ilatovskaia 2023; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 2, p. 6, row 14; `ORC-ODWJYYC52N` |  |
| 1424 | L+ η->θ | L: Fe 0.252; η: Fe 0.286; θ: Fe 0.266 | model | [2] Ilatovskaia 2023; _cites Rank 2019_ [doi](https://doi.org/10.3139/146.111765) | Table 2, p. 6, row 13; `ORC-QTX3WLR36E` |  |
| 1423.96 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | model | [1] Zienert 2018; _cites Sundman 2009_ [doi](https://doi.org/10.1016/j.actamat.2009.02.046) | Table 5, p. 14, row 38; `ORC-ARODRCHIHN` |  |
| 1423.15 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | experimental | [1] Zienert 2018; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 5, p. 14, row 21; `ORC-EAOUAEHTIX` |  |
| 1423 | L+ η->θ | L: Fe 0.25; η: Fe 0.288; θ: Fe 0.248 | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 2, p. 6, row 12; `ORC-NJDMZKTPJR` |  |
| 1423 | L+ η->θ | L: Fe 0.234; η: Fe 0.285; θ: Fe 0.235 | model | [2] Ilatovskaia 2023; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 2, p. 6, row 15; `ORC-QRBWH6H4QI` |  |
| 1423 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | model | [1] Zienert 2018; _cites Zheng 2017_ [doi](https://doi.org/10.1016/j.calphad.2017.05.003) | Table 5, p. 14, row 49; `ORC-WXE7LBNKR7` |  |
| 1422.56 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | unspecified | [1] Zienert 2018 | Table 5, p. 14, row 56; `ORC-SPYCO6JSZS` |  |
| 1422.28 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018 | Table 5, p. 14, row 24; `ORC-IDLO5VUDYU` |  |
| 1422.1 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | experimental | [1] Zienert 2018; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 5, p. 14, row 11; `ORC-5MOTCQEP7U` |  |
| 1422 | Liq + Fe2Al5 = FeAl3 | Fe2Al5: Al 0.714286, Fe 0.285714; FeAl3: Al 0.75, Fe 0.25 | experimental | [3] Jacobs 2009; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 2, p. 4, row 20; `ORC-BGQANZE4RK` |  |
| 1422 | \*ε + η -> ζ | η: Fe 0.285714; ζ: Fe 0.333333 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 28; `ORC-N4JJ2EQ7XZ` |  |
| 1421 | peritectic: Liq + Fe2Al5 = FeAl3 | Fe2Al5: Al 0.714286, Fe 0.285714; FeAl3: Al 0.75, Fe 0.25 | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 37; `ORC-3SMPNLEYC3` |  |
| 1421 | ζ + η -> ε + η | ζ: Fe 0.335; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 25; `ORC-RFG5BAOLGN.15774c` |  |
| 1421 | ζ + η -> ε + η | ζ: Fe 0.33; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 26; `ORC-RFG5BAOLGN.69fec2` |  |
| 1420 | L + η -> θ | η: Al 0.714286, Fe 0.285714; θ: Al 0.764706, Fe 0.235294 | model | [1] Zienert 2018; _cites Phan 2014_ [doi](https://doi.org/10.1016/j.actamat.2014.07.006) | Table 5, p. 14, row 43; `ORC-HNXD4MDRGI` |  |
| 1420 | ε + η->ζ | ε: Fe 0.37; η: Fe 0.31; ζ: Fe 0.34 | model | [2] Ilatovskaia 2023; _cites Rank 2019_ [doi](https://doi.org/10.3139/146.111765) | Table 2, p. 6, row 18; `ORC-SNEWXN3HNP` |  |
| 1420 | ζ + η -> ε + η | ζ: Fe 0.32; η: Fe 0.285714 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 27; `ORC-TS4EOOIEUV` |  |
| 1420 | ε + η->ζ | ε: Fe 0.359; η: Fe 0.317; ζ: Fe 0.346 | model | [2] Ilatovskaia 2023; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 2, p. 6, row 19; `ORC-WGLPQSDNJ4` |  |
| 1419.95 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 5, p. 14, row 14; `ORC-BRZHVZYHPG` |  |
| 1419.2 | Fe2Al5 + ε = FeAl2 | Fe2Al5: Al 0.714286, Fe 0.285714; FeAl2: Al 0.666667, Fe 0.333333 | experimental | [3] Jacobs 2009; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 2, p. 4, row 35; `ORC-LBVAPUB4XS` |  |
| 1419.1 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 5, p. 14, row 8; `ORC-IJECNXYJQI` |  |
| 1419 | ε + η->ζ | ε: Fe 0.377; η: Fe 0.312; ζ: Fe 0.334 | model | [2] Ilatovskaia 2023 | Table 2, p. 6, row 16; `ORC-G776PINPAI` |  |
| 1419 | ε + η->ζ | ε: Fe 0.355; η: Fe 0.295; ζ: Fe 0.329 | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 2, p. 6, row 17; `ORC-SG2KKCPP3Z` |  |
| 1418.6 | Liq + Fe2Al5 = FeAl3 | Fe2Al5: Al 0.714286, Fe 0.285714; FeAl3: Al 0.75, Fe 0.25 | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 18; `ORC-J2SVQZ7AXV` |  |
| 1418.59 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | unspecified | [1] Zienert 2018 | Table 5, p. 14, row 53; `ORC-Q7NCP6KUNP` |  |
| 1418.15 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 5, p. 14, row 19; `ORC-BTG53X34WY` |  |
| 1418 | ε + η->ζ | ε: Fe 0.358; η: Fe 0.316; ζ: Fe 0.332 | model | [2] Ilatovskaia 2023; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 2, p. 6, row 20; `ORC-XINAMTJHV4` |  |
| 1417.2 | peritectoid: Fe2Al5 + ε = FeAl2 | Fe2Al5: Al 0.714286, Fe 0.285714; FeAl2: Al 0.666667, Fe 0.333333 | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 38; `ORC-YIADGUXWWB` |  |
| 1417 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | model | [1] Zienert 2018; _cites Zheng 2017_ [doi](https://doi.org/10.1016/j.calphad.2017.05.003) | Table 5, p. 14, row 47; `ORC-S6H3WSV4I7` |  |
| 1417 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | model | [1] Zienert 2018; _cites Phan 2014_ [doi](https://doi.org/10.1016/j.actamat.2014.07.006) | Table 5, p. 14, row 41; `ORC-SUXGU5AI67` |  |
| 1416.7 | ε + η -> ζ | η: Al 0.714286, Fe 0.285714; ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018; _cites Lee 1960_ | Table 5, p. 14, row 3; `ORC-GKQOAM6LNI` |  |
| 1406.2 | Fe2Al5 + ε = FeAl2 | Fe2Al5: Al 0.714286, Fe 0.285714; FeAl2: Al 0.666667, Fe 0.333333 | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 33; `ORC-6Y5JJB7A7A` |  |
| 1377.73 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | model | [1] Zienert 2018; _cites Sundman 2009_ [doi](https://doi.org/10.1016/j.actamat.2009.02.046) | Table 5, p. 14, row 37; `ORC-SVDAOXL36N` |  |
| 1375 | ε = bcc_B2 + FeAl2 | FeAl2: Al 0.666667, Fe 0.333333 | model | [3] Jacobs 2009; _cites Kattner 1993_ | Table 2, p. 4, row 5; `ORC-EHMHT4IJZW` |  |
| 1373 | ε-> B2 + ζ | ε: Fe 0.4107; B2: Fe 0.4561; ζ: Fe 0.3442 | model | [2] Ilatovskaia 2023 | Table 2, p. 6, row 21; `ORC-J6FAUVRPJD` |  |
| 1370 | ε-> B2 + ζ | ε: Fe 0.394; B2: Fe 0.457; ζ: Fe 0.344 | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 2, p. 6, row 22; `ORC-D7Y2LSTZQ6` |  |
| 1370 | B2 + ζ -> ε + ζ | B2: Fe 0.37; ζ: Fe 0.333333 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 33; `ORC-ERSBFERVVO` |  |
| 1370 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | model | [1] Zienert 2018; _cites Zheng 2017_ [doi](https://doi.org/10.1016/j.calphad.2017.05.003) | Table 5, p. 14, row 48; `ORC-SFQBYLOYXD` |  |
| 1369.58 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | unspecified | [1] Zienert 2018 | Table 5, p. 14, row 54; `ORC-5PCA5XCWSB` |  |
| 1369.17 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018 | Table 5, p. 14, row 25; `ORC-YJCJTR73Y5` |  |
| 1369 | B2 + ζ -> ε + ζ | B2: Fe 0.384; ζ: Fe 0.333333 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 32; `ORC-WPBJS6IV2Z.25861b` |  |
| 1369 | B2 + ζ -> ε + ζ | B2: Fe 0.341; ζ: Fe 0.333333 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 34; `ORC-WPBJS6IV2Z.a47136` |  |
| 1369 | B2 + ζ -> B2 + ε | B2: Fe 0.44; ζ: Fe 0.333333 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 31; `ORC-WPBJS6IV2Z.bc1b66` |  |
| 1369 | \*ε -> B2 + ζ | ζ: Fe 0.333333 | experimental | [1] Zienert 2018 | Table 1, p. 6, row 36; `ORC-WPBJS6IV2Z.bda220` |  |
| 1368.35 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 5, p. 14, row 15; `ORC-F2ILF4C3JZ` |  |
| 1368.2 | eutectoid: Al5Fe4 -> bcc-B2 + Al2Fe | Al5Fe4: Fe 0.403; bcc-B2: Fe 0.462; Al2Fe: Fe 0.333 | model | [4] (ed.) 1998 | Table I, p. 54, row 1; `ORC-OERGHKVTDM` |  |
| 1368.2 | eutectoid: ε = bcc_B2 + FeAl2 | ε: Fe 0.403; bcc_B2: Fe 0.462; FeAl2: Fe 0.333 | model | [3] Jacobs 2009; _cites Seierstein 1998_ | Table 2, p. 4, row 3; `ORC-ZBXMKWTAFE` |  |
| 1368.15 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 5, p. 14, row 20; `ORC-DAJEBNC3UI` |  |
| 1368.1 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 5, p. 14, row 9; `ORC-EVEZUHUSKG` |  |
| 1368 | ε-> B2 + ζ | ε: Fe 0.393; B2: Fe 0.46; ζ: Fe 0.357 | model | [2] Ilatovskaia 2023; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 2, p. 6, row 24; `ORC-DHVJNFEJ6P` |  |
| 1368 | ε-> B2 + ζ | ε: Fe 0.411; B2: Fe 0.482; ζ: Fe 0.354 | model | [2] Ilatovskaia 2023; _cites Rank 2019_ [doi](https://doi.org/10.3139/146.111765) | Table 2, p. 6, row 23; `ORC-I53PKSLRK7` |  |
| 1368 | ε = bcc_B2 + FeAl2 | FeAl2: Al 0.666667, Fe 0.333333 | experimental | [3] Jacobs 2009; _cites Stein 2007_ [doi](https://doi.org/10.3139/146.101512) | Table 2, p. 4, row 6; `ORC-M262WMQN6H` |  |
| 1368 | ε-> B2 + ζ | ε: Fe 0.391; B2: Fe 0.471; ζ: Fe 0.355 | model | [2] Ilatovskaia 2023; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 2, p. 6, row 25; `ORC-M4MWJNP6D4` |  |
| 1366 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | model | [1] Zienert 2018; _cites Phan 2014_ [doi](https://doi.org/10.1016/j.actamat.2014.07.006) | Table 5, p. 14, row 42; `ORC-5QKXBH5Q2C` |  |
| 1366 | eutectoid: ε = bcc_B2 + FeAl2 | FeAl2: Al 0.666667, Fe 0.333333 | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 36; `ORC-C2GRIN2W3U` |  |
| 1365.5 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | experimental | [1] Zienert 2018; _cites Lee 1960_ | Table 5, p. 14, row 4; `ORC-YMEX665PZW` |  |
| 1363.4 | ε = bcc_B2 + FeAl2 | FeAl2: Al 0.666667, Fe 0.333333 | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 4; `ORC-RIZL6RY45O` |  |
| 1357.4 | ε -> B2 + ζ | ζ: Al 0.666667, Fe 0.333333 | model | [1] Zienert 2018; _cites Jacobs 2009_ | Table 5, p. 14, row 30; `ORC-DG2PIUNUV2` |  |
| 1357.4 | eutectoid: ε = bcc_B2 + FeAl2 | ε: Fe 0.408; bcc_B2: Fe 0.462; FeAl2: Fe 0.333 | model | [3] Jacobs 2009 | Table 2, p. 4, row 2; `ORC-QNKNEAA7TO` |  |
| 1337.9 | eutectoid: ε = bcc_B2 + FeAl2 | ε: Fe 0.416; bcc_B2: Fe 0.473; FeAl2: Fe 0.333 | model | [3] Jacobs 2009 | Table 2, p. 4, row 1; `ORC-TVFQZH2NEB` |  |
| 928 | eutectic: L->θ + fcc | θ: Fe 0.235 | model | [2] Ilatovskaia 2023; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 2, p. 6, row 29; `ORC-SXQZAZBRNW` |  |
| 928 | Liq = fcc_A1 + FeAl3 | Liq: Fe 0.009; fcc_A1: Fe 0; FeAl3: Fe 0.234 | model | [3] Jacobs 2009; _cites Kattner 1993_ | Table 2, p. 4, row 24; `ORC-XP5II5XKML` |  |
| 927.2 | eutectic: L -> θ + fcc | θ: Al 0.764706, Fe 0.235294 | model | [1] Zienert 2018; _cites Jacobs 2009_ | Table 5, p. 14, row 33; `ORC-FZVPCNMSFO` |  |
| 927.2 | eutectic: Liq = fcc_A1 + FeAl3 | Liq: Fe 0.009; fcc_A1: Fe 0; FeAl3: Fe 0.237 | model | [3] Jacobs 2009 | Table 2, p. 4, row 21; `ORC-QPYL75YVV7` |  |
| 927.1 | eutectic: Liquid -> fcc-Al + Al13Fe4 | L: Fe 0.009; fcc-Al: Fe 0; Al13Fe4: Fe 0.237 | model | [4] (ed.) 1998 | Table I, p. 54, row 5; `ORC-2NQTH26KXU` |  |
| 927.1 | eutectic: Liq = fcc_A1 + FeAl3 | Liq: Fe 0.009; fcc_A1: Fe 0; FeAl3: Fe 0.237 | model | [3] Jacobs 2009; _cites Seierstein 1998_ | Table 2, p. 4, row 22; `ORC-YBDC6AVCIU` |  |
| 927 | eutectic: L->θ + fcc | θ: Fe 0.235294 | model | [2] Ilatovskaia 2023; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 2, p. 6, row 30; `ORC-B2YLIFP5X7` |  |
| 926 | eutectic: L->θ + fcc | L: Fe 0.011; θ: Fe 0.236; fcc: Fe 0 | model | [2] Ilatovskaia 2023; _cites Rank 2019_ [doi](https://doi.org/10.3139/146.111765) | Table 2, p. 6, row 28; `ORC-5S4B6KIPF7` |  |
| 926 | eutectic: L -> θ + fcc | θ: Al 0.764706, Fe 0.235294 | model | [1] Zienert 2018; _cites Zheng 2017_ [doi](https://doi.org/10.1016/j.calphad.2017.05.003) | Table 5, p. 14, row 50; `ORC-I3TEKMCCLL` |  |
| 926 | eutectic: L -> θ + fcc | θ: Al 0.764706, Fe 0.235294 | model | [1] Zienert 2018; _cites Phan 2014_ [doi](https://doi.org/10.1016/j.actamat.2014.07.006) | Table 5, p. 14, row 44; `ORC-IUEM7D6J6B` |  |
| 925.2 | eutectic: L -> θ + fcc | θ: Al 0.764706, Fe 0.235294 | experimental | [1] Zienert 2018; _cites Lee 1960_ | Table 5, p. 14, row 5; `ORC-PTKUZCU75C` |  |
| 925.2 | Liq = fcc_A1 + FeAl3 | FeAl3: Al 0.75, Fe 0.25 | experimental | [3] Jacobs 2009; _cites Lee 1960_ | Table 2, p. 4, row 23; `ORC-R7OHUAERMY` |  |
| 923 | eutectic: L->θ + fcc | L: Fe 0.015; θ: Fe 0.236; fcc: Fe 0.001 | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 2, p. 6, row 27; `ORC-LUOUVY2JX2` |  |
| 923 | eutectic: L->θ + fcc | L: Fe 0.015; θ: Fe 0.237; fcc: Fe 0.001 | model | [2] Ilatovskaia 2023 | Table 2, p. 6, row 26; `ORC-M4KERO6HQI` |  |
| 922.59 | eutectic: L -> θ + fcc | θ: Al 0.764706, Fe 0.235294 | unspecified | [1] Zienert 2018 | Table 5, p. 14, row 57; `ORC-X5NSDFWDMD` |  |

## 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, Al–Fe system (31)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Fe3Al |  | -19.4 kJ/mol (basis unstated) |  | DFT |  |  | [5] Ostrowska 2019; _cites OQMD_ | Table 3, p. 3, row 5; `ORC-7QQKA7EOC5` |  |
| Fe3Al |  | -19.21 kJ/mol (basis unstated) |  | DFT |  |  | [5] Ostrowska 2019; _cites AFLOW_ | Table 3, p. 3, row 7; `ORC-SYS3MN5SZC` |  |
| Fe3Al |  | -19.11 kJ/mol (basis unstated) |  | DFT |  |  | [5] Ostrowska 2019; _cites NIST_ | Table 3, p. 3, row 6; `ORC-J4TDABFUUL` |  |
| Fe3Al |  | -18.73 kJ/mol (basis unstated) |  | DFT |  |  | [5] Ostrowska 2019; _cites materialsproject_ | Table 3, p. 3, row 4; `ORC-NQRQLJPSFJ` |  |
| Fe3Al A15 |  | -14.9 kJ/mol (basis unstated) | 0 | DFT |  |  | [6] Berche 2018 | Table 1, p. 4, row 3; `ORC-IO4D7RD3W3.75b2df` |  |
| Fe3Al A2 |  | -14.69 kJ/mol (basis unstated) | 0 | DFT |  |  | [6] Berche 2018 | Table 1, p. 4, row 2; `ORC-CJODILRPFH.e4aed4` |  |
| Fe3Al D03 |  | -18.87 kJ/mol (basis unstated) | 0 | DFT |  |  | [6] Berche 2018 | Table 1, p. 4, row 1; `ORC-NR7JYKBFG3.baa788` |  |
| Fe3Al D03 |  | 4.09 kJ/mol (basis unstated) | 0 | DFT |  |  | [6] Berche 2018 | Table 1, p. 4, row 4; `ORC-7SRB73HNCM.2d3f1c` |  |
| FeAl2 |  | -124.42 kJ/mol (basis unstated) |  | DFT |  |  | [5] Ostrowska 2019; _cites AFLOW_ | Table 3, p. 3, row 3; `ORC-QZDY6TWINT` |  |
| Laves C14 |  | -23.0606 kJ/mol (basis unstated) |  | unspecified |  |  | [7] Liang 2024 | Table 6, p. 10, row 16; `ORC-FHIOIJ3232` |  |
| Laves C14 |  | -23.0606 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Liang 2024 | Table 6, p. 10, row 15; `ORC-FB7B5G4J5A` |  |
| Laves C14 |  | -16.6924 kJ/mol (basis unstated) |  | unspecified |  |  | [7] Liang 2024 | Table 6, p. 10, row 10; `ORC-Q5LAQGX4OH` |  |
| Laves C14 |  | -16.6924 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Liang 2024 | Table 6, p. 10, row 9; `ORC-XZVNYMHOKC` |  |
| Laves C14 |  | -5.30683 kJ/mol (basis unstated) |  | unspecified |  |  | [7] Liang 2024 | Table 6, p. 10, row 6; `ORC-6PISKBDMBD` |  |
| Laves C14 |  | -5.30683 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Liang 2024 | Table 6, p. 10, row 5; `ORC-YPK2524EVJ` |  |
| Laves C14 |  | -0.7719 kJ/mol (basis unstated) |  | unspecified |  |  | [7] Liang 2024 | Table 6, p. 10, row 14; `ORC-HHYL4NAACP` |  |
| Laves C14 |  | -0.7719 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Liang 2024 | Table 6, p. 10, row 13; `ORC-M5DNPGNXUW` |  |
| Laves C14 |  | 0.28946 kJ/mol (basis unstated) |  | unspecified |  |  | [7] Liang 2024 | Table 6, p. 10, row 8; `ORC-ED4R2QUA6U` |  |
| Laves C14 |  | 0.28946 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Liang 2024 | Table 6, p. 10, row 7; `ORC-RKB7TTGR5X` |  |
| Laves C14 |  | 12.4469 kJ/mol (basis unstated) |  | unspecified |  |  | [7] Liang 2024 | Table 6, p. 10, row 2; `ORC-H5KL6YJWHC` |  |
| Laves C14 |  | 12.4469 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Liang 2024 | Table 6, p. 10, row 1; `ORC-IXNHOEVTEG` |  |
| Laves C14 |  | 22.5782 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Liang 2024 | Table 6, p. 10, row 11; `ORC-E5RJQQ2GQZ` |  |
| Laves C14 |  | 22.5782 kJ/mol (basis unstated) |  | DFT |  |  | [7] Liang 2024 | Table 6, p. 10, row 12; `ORC-QUJ7N2JEIY` |  |
| ζ-Al2Fe | [Al2Fe](https://data.orchid-project.org/compounds/Al2Fe.html) | -27.8 kJ/mol-atom ± 1.9 | 298.15 | experimental |  | -34.734 (oqmd-1376945) | [2] Ilatovskaia 2023; _cites Lukas 2007_ | Table 3, p. 6, row 5; `ORC-PPHKB7RLW5.2ce243` |  |
| ζ-Al2Fe | [Al2Fe](https://data.orchid-project.org/compounds/Al2Fe.html) | -23.8 kJ/mol-atom | 298.15 | model |  | -34.734 (oqmd-1376945) | [2] Ilatovskaia 2023 | Table 3, p. 6, row 8; `ORC-NFOJ5NSTXH.4aba14` |  |
| ζ-Al2Fe | [Al2Fe](https://data.orchid-project.org/compounds/Al2Fe.html) | -23.72 kJ/mol-atom | 298.15 | model |  | -34.734 (oqmd-1376945) | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 7; `ORC-OQUBXYMF3T.a8d56e` |  |
| η-Al5Fe2 |  | -30.5 kJ/mol-atom ± 1.7 | 298.15 | experimental |  |  | [2] Ilatovskaia 2023; _cites Lukas 2007_ | Table 3, p. 6, row 1; `ORC-JS5IF7RCC7.1c3822` |  |
| η-Al5Fe2 |  | -23.5 kJ/mol-atom | 298.15 | model |  |  | [2] Ilatovskaia 2023 | Table 3, p. 6, row 4; `ORC-7PZ4D5IAFZ.6ab1ca` |  |
| η-Al5Fe2 |  | -23.09 kJ/mol-atom | 298.15 | model |  |  | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 3; `ORC-OB2DGUQYZ2.616026` |  |
| θ-Al13Fe4 | [Al13Fe4](https://data.orchid-project.org/compounds/Al13Fe4.html) | -22.8 kJ/mol-atom | 298.15 | model | -31.526 (mp-aaacqllk) | -31.902 (oqmd-2050075) | [2] Ilatovskaia 2023 | Table 3, p. 6, row 11; `ORC-O4GMR2GDCT.3d0ee5` |  |
| θ-Al13Fe4 | [Al13Fe4](https://data.orchid-project.org/compounds/Al13Fe4.html) | -21.77 kJ/mol-atom | 298.15 | model | -31.526 (mp-aaacqllk) | -31.902 (oqmd-2050075) | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 10; `ORC-VVADXIIBVX.2fa275` |  |

## Other properties

### Phase transition (19)

Table: Phase transition, Al–Fe system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 600 K | 600 | other | experimental | [1] Zienert 2018; _cites Zienert 2016_ [doi](https://doi.org/10.1016/j.intermet.2016.07.002) | p. 6; `ORC-TRBRPCV2TQ` | “It should be mentioned that the observed phase transitions in h at temperatures around 600 K (see Ref. \[8\] for details) were not taken into account in the thermodynamic description of this work.” |
| Phase transition | 1353 K | 1353 | other | model | [8] Du 2009 | p. 10; `ORC-ME72ENZBLQ.0fd807` | “The decomposition temperatures of s1, s2 and e\*(Al5Fe4) are 1120, 1350 and 1353 K, respectively, which are basically in agreement with the experimental temperatures 1120,\[32\] 1344-1368\[45\] and 1358-1368 K.\[45\]” |
| Phase transition | 1406 K | 1406 | θ -> L + θ; _θ: Fe 0.247_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 37; `ORC-GP5PBBNUBN` |  |
| Phase transition | 1412 K | 1412 | ε + ζ -> ε; _ε: Fe 0.37; ζ: Fe 0.333333_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 30; `ORC-SYVQTLD7MQ` |  |
| Phase transition | 1421 K | 1421 | ζ -> ζ + η; _ζ: Fe 0.335; η: Fe 0.285714_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 29; `ORC-HYYN3KVPUN` |  |
| Phase transition | 1430 K | 1430 | η -> L + η; _η: Fe 0.3; L: Fe 0.3_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 18; `ORC-PZGLORLJOB` |  |
| Phase transition | 1431 K | 1431 | L->η; _L: Fe 0.285714; η: Fe 0.285714_ | model | [2] Ilatovskaia 2023; _cites Li 2016_ [doi](https://doi.org/10.1007/s11669-015-0446-7) | Table 2, p. 6, row 35; `ORC-RJW37ZCGDI` |  |
| Phase transition | 1433 K | 1433 | L->η; _L: Fe 0.292; η: Fe 0.285714_ | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 2, p. 6, row 32; `ORC-BFJGNHMQRF` |  |
| Phase transition | 1433 K | 1433 | L->η; _L: Fe 0.3; η: Fe 0.285714_ | model | [2] Ilatovskaia 2023; _cites Han 2016_ [doi](https://doi.org/10.1016/j.jallcom.2016.01.215) | Table 2, p. 6, row 34; `ORC-MLZLYKOPIW` |  |
| Phase transition | 1433 K | 1433 | L->η; _L: Fe 0.3; η: Fe 0.285714_ | model | [2] Ilatovskaia 2023; _cites Rank 2019_ [doi](https://doi.org/10.3139/146.111765) | Table 2, p. 6, row 33; `ORC-YAZDWVKYD6` |  |
| Phase transition | 1434 K | 1434 | L->η; _L: Fe 0.294; η: Fe 0.285714_ | model | [2] Ilatovskaia 2023 | Table 2, p. 6, row 31; `ORC-TBSVR5A3BP` |  |
| Phase transition | 1442 K | 1442 | L + ε -> L; _L: Fe 0.32; ε: Fe 0.32_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 9; `ORC-ZHICAY6FW5` |  |
| Phase transition | 1443 K | 1443 | ε -> L + ε; _ε: Fe 0.37; L: Fe 0.37_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 11; `ORC-GWNM6KQSA3` |  |
| Phase transition | 1445 K | 1445 | L + ε -> L; _L: Fe 0.335; ε: Fe 0.335_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 8; `ORC-JCGZLDT4ZA` |  |
| Phase transition | 1457 K | 1457 | L + ε -> L; _L: Fe 0.341; ε: Fe 0.341_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 7; `ORC-CCPHOTC7MM.a72dd4` |  |
| Phase transition | 1472 K | 1472 | ε -> L + ε; _ε: Fe 0.384; L: Fe 0.384_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 10; `ORC-GZED5IT7NE` |  |
| Phase transition | 1479 K | 1479 | L + ε -> L; _L: Fe 0.37; ε: Fe 0.37_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 5; `ORC-JJRDGRSQ5I` |  |
| Phase transition | 1498 K | 1498 | L + ε -> L; _L: Fe 0.384; ε: Fe 0.384_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 4; `ORC-F6KICL5QH2` |  |
| Phase transition | 1551 K | 1551 | L + B2 -> L; _L: Fe 0.44; B2: Fe 0.44_ | experimental | [1] Zienert 2018 | Table 1, p. 6, row 1; `ORC-O7RHXX4ZPR` |  |

### Phase equilibrium (15)

Table: Phase equilibrium, Al–Fe system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase composition |  | 1073 | ζ + η + UNKNOWN; _ζ: Al 0.669, Fe 0.331; η: Al 0.705, Fe 0.295; UNKNOWN: Al 0.705, Fe 0.295_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 10; `ORC-ZCWUXFO4SX` |  |
| Phase composition |  | 1073 | η + θ + UNKNOWN; _η: Al 0.729, Fe 0.271; θ: Al 0.758, Fe 0.242; UNKNOWN: Al 0.758, Fe 0.242_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 15; `ORC-UR5366EHK6` |  |
| Phase composition |  | 1173 | \[B2 + ζ\] + ζ + UNKNOWN; _ζ: Al 0.654, Fe 0.346; UNKNOWN: Al 0.654, Fe 0.346_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 5; `ORC-H2VK3G6IAG` |  |
| Phase composition |  | 1173 | ζ + η + UNKNOWN; _ζ: Al 0.664, Fe 0.336; η: Al 0.697, Fe 0.303; UNKNOWN: Al 0.697, Fe 0.303_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 9; `ORC-5WGUZFBJOF` |  |
| Phase composition |  | 1173 | η + θ + UNKNOWN; _η: Al 0.722, Fe 0.278; θ: Al 0.755, Fe 0.245; UNKNOWN: Al 0.755, Fe 0.245_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 14; `ORC-7BYEIPJ44B` |  |
| Phase composition |  | 1273 | \[B2 + ζ\] + ζ + UNKNOWN; _ζ: Al 0.653, Fe 0.347; UNKNOWN: Al 0.653, Fe 0.347_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 4; `ORC-LR4X3NEPXQ` |  |
| Phase composition |  | 1273 | ζ + η + UNKNOWN; _ζ: Al 0.665, Fe 0.335; UNKNOWN: Al 0.695, Fe 0.305; η: Al 0.695, Fe 0.305_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 8; `ORC-ZYNQODLEL4` |  |
| Phase composition |  | 1273 | η + θ + UNKNOWN; _η: Al 0.726, Fe 0.274; θ: Al 0.749, Fe 0.251; UNKNOWN: Al 0.749, Fe 0.251_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 13; `ORC-XVQBM2AQDI` |  |
| Phase composition |  | 1393 | \[B2 + ζ\] + ζ + UNKNOWN; _\[B2 + ζ\]: Al 0.601, Fe 0.399; ζ: Al 0.648, Fe 0.352; UNKNOWN: Al 0.648, Fe 0.352_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 3; `ORC-DVFNGHVS6O` |  |
| Phase composition |  | 1393 | ζ + η + UNKNOWN; _ζ: Al 0.663, Fe 0.337; η: Al 0.69, Fe 0.31; UNKNOWN: Al 0.69, Fe 0.31_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 7; `ORC-LJMC3OGUKE` |  |
| Phase composition |  | 1393 | η + θ + UNKNOWN; _η: Al 0.717, Fe 0.283; θ: Al 0.742, Fe 0.258; UNKNOWN: Al 0.742, Fe 0.258_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 12; `ORC-RBQRTADPPA` |  |
| Phase composition |  | 1418 | ζ + η + UNKNOWN; _ζ: Al 0.66, Fe 0.34; UNKNOWN: Al 0.685, Fe 0.315; η: Al 0.685, Fe 0.315_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 6; `ORC-SWNLMUDSRZ` |  |
| Phase composition |  | 1418 | η + θ + UNKNOWN; _η: Al 0.719, Fe 0.281; θ: Al 0.739, Fe 0.261; UNKNOWN: Al 0.739, Fe 0.261_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 11; `ORC-GDM5HM3OIC` |  |
| Phase composition |  | 1426 | B2 + \[B2 + ζ\] + UNKNOWN; _B2: Al 0.518, Fe 0.482; \[B2 + ζ\]: Al 0.582, Fe 0.418; UNKNOWN: Al 0.582, Fe 0.418_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 1; `ORC-ONVGQ726FP` |  |
| Phase composition |  | 1435 | \[B2 + ζ\] + ζ + UNKNOWN; _\[B2 + ζ\]: Al 0.586, Fe 0.414; ζ: Al 0.634, Fe 0.366; UNKNOWN: Al 0.634, Fe 0.366_ | experimental | [1] Zienert 2018 | Table 2, p. 10, row 2; `ORC-6WJ5W7FMQE` |  |

### Mixing / partial (6)

Table: Mixing / partial, Al–Fe system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Gibbs energy of mixing; _printed: ΔGm_ | -32.73 kJ/mol-atom | 298.15 | ζ-Al2Fe; _alloy: Fe 0.333333_ | model | [2] Ilatovskaia 2023 | Table 3, p. 6, row 8; `ORC-NFOJ5NSTXH.a65427` |  |
| Gibbs energy of mixing; _printed: ΔGm_ | -32.73 kJ/mol-atom | 298.15 | ζ-Al2Fe; _alloy: Fe 0.333333_ | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 7; `ORC-OQUBXYMF3T.85d912` |  |
| Gibbs energy of mixing; _printed: ΔGm_ | -32.01 kJ/mol-atom | 298.15 | η-Al5Fe2; _alloy: Fe 0.285714_ | model | [2] Ilatovskaia 2023 | Table 3, p. 6, row 4; `ORC-7PZ4D5IAFZ.915ff0` |  |
| Gibbs energy of mixing; _printed: ΔGm_ | -32.08 kJ/mol-atom | 298.15 | η-Al5Fe2; _alloy: Fe 0.285714_ | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 3; `ORC-OB2DGUQYZ2.91a64a` |  |
| Gibbs energy of mixing; _printed: ΔGm_ | -31.14 kJ/mol-atom | 298.15 | θ-Al13Fe4; _alloy: Fe 0.235294_ | model | [2] Ilatovskaia 2023 | Table 3, p. 6, row 11; `ORC-O4GMR2GDCT.c2a97a` |  |
| Gibbs energy of mixing; _printed: ΔGm_ | -30.42 kJ/mol-atom | 298.15 | θ-Al13Fe4; _alloy: Fe 0.235294_ | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 10; `ORC-VVADXIIBVX.6cb4ad` |  |

### Heat capacity / entropy / enthalpy (22)

Table: Heat capacity / entropy / enthalpy, Al–Fe system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy; _printed: Sm298.15_ | 29.96 J/mol-atom/K | 298.15 | ζ-Al2Fe; _alloy: Fe 0.333333_ | model | [2] Ilatovskaia 2023 | Table 3, p. 6, row 8; `ORC-NFOJ5NSTXH.bafe35` |  |
| Entropy; _printed: Sm298.15_ | 24.45 J/mol-atom/K | 298.15 | ζ-Al2Fe; _alloy: Fe 0.333333_ | model | [2] Ilatovskaia 2023; _cites Zienert 2017_ [doi](https://doi.org/10.1016/j.jallcom.2017.07.199) | Table 3, p. 6, row 6; `ORC-OHI2Z25P4M.8e3ca1` |  |
| Entropy; _printed: Sm298.15_ | 30.21 J/mol-atom/K | 298.15 | ζ-Al2Fe; _alloy: Fe 0.333333_ | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 7; `ORC-OQUBXYMF3T.b5ebd9` |  |
| Entropy; _printed: S298.15_ | 28.94 J/mol-atom/K | 298.15 | η-Al5Fe2; _alloy: Fe 0.285714_ | model | [2] Ilatovskaia 2023 | Table 3, p. 6, row 4; `ORC-7PZ4D5IAFZ.260c23` |  |
| Entropy; _printed: S298.15_ | 23 J/mol-atom/K | 298.15 | η-Al5Fe2; _alloy: Fe 0.285714_ | model | [2] Ilatovskaia 2023; _cites Zienert 2017_ [doi](https://doi.org/10.1016/j.jallcom.2017.07.199) | Table 3, p. 6, row 2; `ORC-FXGYFMWQBM.18bbe0` |  |
| Entropy; _printed: Sm298.15_ | 29.97 J/mol-atom/K | 298.15 | η-Al5Fe2; _alloy: Fe 0.285714_ | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 3; `ORC-OB2DGUQYZ2.08389a` |  |
| Entropy; _printed: S298.15_ | 23.65 J/mol-atom/K | 298.15 | θ-Al13Fe4; _alloy: Fe 0.235294_ | model | [2] Ilatovskaia 2023; _cites Zienert 2017_ [doi](https://doi.org/10.1016/j.jallcom.2017.07.199) | Table 3, p. 6, row 9; `ORC-CRFK6IFN3U.0134f7` |  |
| Entropy; _printed: S298.15_ | 27.96 J/mol-atom/K | 298.15 | θ-Al13Fe4; _alloy: Fe 0.235294_ | model | [2] Ilatovskaia 2023 | Table 3, p. 6, row 11; `ORC-O4GMR2GDCT.86cdc1` |  |
| Entropy; _printed: Sm298.15_ | 29.04 J/mol-atom/K | 298.15 | θ-Al13Fe4; _alloy: Fe 0.235294_ | model | [2] Ilatovskaia 2023; _cites Zienert 2018_ [doi](https://doi.org/10.1016/j.jallcom.2018.01.316) | Table 3, p. 6, row 10; `ORC-VVADXIIBVX.72ca14` |  |
| Heat capacity; _printed: cp_ | 40.9 J/mol (basis unstated)/K | 1395 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 1; `ORC-SPVEMYPFHH` |  |
| Heat capacity; _printed: cp_ | 41.2 J/mol (basis unstated)/K | 1400 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 2; `ORC-PHSPK3J5L5` |  |
| Heat capacity; _printed: cp_ | 41.3 J/mol (basis unstated)/K | 1405 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 3; `ORC-D5KQJQELKF` |  |
| Heat capacity; _printed: cp_ | 41.6 J/mol (basis unstated)/K | 1410 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 4; `ORC-MJD7XBVFTA` |  |
| Heat capacity; _printed: cp_ | 41.8 J/mol (basis unstated)/K | 1415 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 5; `ORC-54YDYKMATH` |  |
| Heat capacity; _printed: cp_ | 41.9 J/mol (basis unstated)/K | 1420 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 6; `ORC-V4IGIN4OMQ` |  |
| Heat capacity; _printed: cp_ | 42.1 J/mol (basis unstated)/K | 1425 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 7; `ORC-SKKA6YFMAR` |  |
| Heat capacity; _printed: cp_ | 42.3 J/mol (basis unstated)/K | 1430 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 8; `ORC-5TNYKHKWRK` |  |
| Heat capacity; _printed: cp_ | 42.6 J/mol (basis unstated)/K | 1435 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 9; `ORC-URKGI5XYRG` |  |
| Heat capacity; _printed: cp_ | 42.7 J/mol (basis unstated)/K | 1440 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 10; `ORC-4NPK7P5GRQ` |  |
| Heat capacity; _printed: cp_ | 43 J/mol (basis unstated)/K | 1445 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 11; `ORC-PISPO7TC7M` |  |
| Heat capacity; _printed: cp_ | 43.1 J/mol (basis unstated)/K | 1450 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 12; `ORC-XV3NXQANGS` |  |
| Heat capacity; _printed: cp_ | 43.4 J/mol (basis unstated)/K | 1455 | ε; _alloy: Al 0.609, Fe 0.391_ | experimental | [1] Zienert 2018 | Table 3, p. 11, row 13; `ORC-LCHH7KCE3J` |  |

### Activity / EMF / Gibbs energy (1)

Table: Activity / EMF / Gibbs energy, Al–Fe system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Gibbs energy; _printed: difference in the Gibbs energy_ | 150 J/mol | 700 |  | model | [9] Sundman 2009 | p. 4; `ORC-SKROREA2D7` | “It should be noted that this assessment gives a minimum difference in the Gibbs energy between D03 and L12 of 150 J/mol at 700 K.” |

### Crystal structure (4)

Table: Crystal structure, Al–Fe system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a; _printed: a_ | 4.5944 Å | 0 | Fe3Al A15; _alloy: Fe 0.75_ | DFT | [6] Berche 2018 | Table 1, p. 4, row 3; `ORC-WUQBJZPAZQ.fad348` |  |
| Lattice a; _printed: a_ | 2.8836 Å | 0 | Fe3Al A2; _alloy: Fe 0.75_ | DFT | [6] Berche 2018 | Table 1, p. 4, row 2; `ORC-AJ66R2MHO7.8f4903` |  |
| Lattice a; _printed: a_ | 5.6151 Å | 0 | Fe3Al D03; _alloy: Fe 0.75_ | DFT | [6] Berche 2018 | Table 1, p. 4, row 4; `ORC-3HEG63ENLL.6d71b9` |  |
| Lattice a; _printed: a_ | 5.7375 Å | 0 | Fe3Al D03; _alloy: Fe 0.75_ | DFT | [6] Berche 2018 | Table 1, p. 4, row 1; `ORC-SDSDY32MY7.d387e0` |  |

## Sources

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

1. Tilo Zienert, Olga Fabrichnaya, Experimental investigation and thermodynamic assessment of the Al-Fe system, Journal of Alloys and Compounds 743, 795-811 (2018). [doi:10.1016/j.jallcom.2018.01.316](https://doi.org/10.1016/j.jallcom.2018.01.316)
2. M. Ilatovskaia, H. Becker, O. Fabrichnaya, A. Leineweber, The η-Al5Fe2 phase in the Al–Fe system: The issue with the sublattice model, Journal of Alloys and Compounds 936, 168361 (2023). [doi:10.1016/j.jallcom.2022.168361](https://doi.org/10.1016/j.jallcom.2022.168361)
3. Michel H.G. Jacobs, Rainer Schmid-Fetzer, Phase behavior and thermodynamic properties in the system Fe–Al, Calphad 33, 170-178 (2009). [doi:10.1016/j.calphad.2008.07.010](https://doi.org/10.1016/j.calphad.2008.07.010)
4. I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8.
5. Marlena Ostrowska, Gabriele Cacciamani, Critical evaluation and thermodynamic modeling of the Al-Co-Fe system, Journal of Alloys and Compounds 794, 553-568 (2019). [doi:10.1016/j.jallcom.2019.04.170](https://doi.org/10.1016/j.jallcom.2019.04.170)
6. Alexandre Berche, Philippe Jund, Ab initio description of the different phases in the Al-Fe-V system: Structure, magnetism and thermodynamics, Computational Materials Science 149, 28-36 (2018). [doi:10.1016/j.commatsci.2018.03.008](https://doi.org/10.1016/j.commatsci.2018.03.008)
7. Zhi Liang, Ursula Kattner, Kamal Choudharry, Francesca Tavazza, Carelyn Campbell, Thermodynamic Assessments of Ti-Al, Ti-Fe, and Ti-Al-Fe Systems with Four-Sublattice Description of Ordered Body-Centered Cubic Phase and Density Functional Theory Data, J. Phase Equilib. Diffus. 45, 732-756 (2024). [doi:10.1007/s11669-024-01124-9](https://doi.org/10.1007/s11669-024-01124-9)
8. Zhenmin Du, Cuiping Guo, Changrong Li, Weijing Zhang, Thermodynamic Description of the Al-Mo and Al-Fe-Mo Systems, J. Phase Equilib. Diffus. 30, 487-501 (2009). [doi:10.1007/s11669-009-9564-4](https://doi.org/10.1007/s11669-009-9564-4)
9. Bo Sundman, Ikuo Ohnuma, Nathalie Dupin, Ursula R. Kattner, Suzana G. Fries, An assessment of the entire Al–Fe system including D03 ordering, Acta Materialia 57, 2896-2908 (2009). [doi:10.1016/j.actamat.2009.02.046](https://doi.org/10.1016/j.actamat.2009.02.046)

## 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/).