# B–Cr–Ni system

> B–Cr–Ni system: 26 accepted literature values (invariant reaction 14, crystal structure 12) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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

26 accepted literature values from 1 paper(s) (experimental 17, model 9); 0 calculated phase diagram(s).

Data: [JSON](https://data.orchid-project.org/literature/systems/B-CR-NI.json) · [CSV](https://data.orchid-project.org/systems/B-CR-NI.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#B-CR-NI) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/B-CR-NI.html) · [Markdown](https://data.orchid-project.org/systems/B-CR-NI.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 17 |
| model | 9 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 14 |
| crystal structure | 12 |

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the B–Cr–Ni system (14)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1531.15 | eutectic: L -> Cr2B+bcc(Cr)+fcc(Ni) | L: B 0.043, Cr 0.579 | experimental | [1] Campbell 2002; _cites ref. 31_ | Table 5, p. 8, row 7; `ORC-XYEVPJVXCO` |  |
| 1495.15 | eutectic: L -> Cr2B+bcc(Cr)+fcc(Ni) | L: B 0.0936, Cr 0.572 | model | [1] Campbell 2002 | Table 5, p. 8, row 8; `ORC-K4BPYF452H` |  |
| 1493.15 | L + Cr2B -> Cr5B3+fcc(Ni) | L: B 0.123, Cr 0.353; Cr5B3: B 0.375, Cr 0.625, Ni 0 | experimental | [1] Campbell 2002; _cites ref. 31_ | Table 5, p. 8, row 13; `ORC-5F75BD5R3T` |  |
| 1453.15 | L + Cr2B -> Cr5B3+fcc(Ni) | L: B 0.15, Cr 0.321; Cr5B3: B 0.375, Cr 0.625, Ni 0 | model | [1] Campbell 2002 | Table 5, p. 8, row 14; `ORC-72WXGU33VJ` |  |
| 1400.15 | quasi-peritectic: L + Cr5B3 -> CrB + Ni3B | L: B 0.268, Cr 0.0473; Cr5B3: B 0.375, Cr 0.625, Ni 0 | model | [1] Campbell 2002 | Table 5, p. 8, row 11; `ORC-BRO5IAC6OF` |  |
| 1397.15 | quasi-peritectic: L + Cr3B4 -> CrB + Ni3B | L: B 0.285, Cr 0.0371 | model | [1] Campbell 2002 | Table 5, p. 8, row 12; `ORC-A425VZMT6T` |  |
| 1378.15 | eutectic: L -> Cr3B4+Ni2B+Ni3B | L: B 0.316, Cr 0.0121 | model | [1] Campbell 2002 | Table 5, p. 8, row 1; `ORC-3QAHXRZKGZ` |  |
| 1376.15 | eutectic: L -> CrB+Ni2B+Ni3B | L: B 0.316, Cr 0.0154 | model | [1] Campbell 2002 | Table 5, p. 8, row 3; `ORC-HNIGYBG6EI` |  |
| 1373.15 | eutectic: L -> Cr5B3+Ni3B+fcc(Ni) | L: B 0.193, Cr 0.132; Cr5B3: B 0.375, Cr 0.625, Ni 0 | model | [1] Campbell 2002 | Table 5, p. 8, row 4; `ORC-4BAGUREYVC` |  |
| 1369.15 | eutectic: L -> CrB+Ni2B+Ni3B | L: B 0.356, Cr 0.147 | experimental | [1] Campbell 2002; _cites ref. 31_ | Table 5, p. 8, row 2; `ORC-JFFGOB4FRB` |  |
| 1369.15 | quasi-peritectic: L + Cr5B3 -> CrB + fcc(Ni) | L: B 0.173, Cr 0.212; Cr5B3: B 0.375, Cr 0.625, Ni 0 | experimental | [1] Campbell 2002; _cites ref. 31_ | Table 5, p. 8, row 9; `ORC-X3LMNDELZH` |  |
| 1353.15 | eutectic: L -> CrB+Ni3B+fcc(Ni) | L: B 0.187, Cr 0.222 | model | [1] Campbell 2002 | Table 5, p. 8, row 6; `ORC-ML2R66U5GN` |  |
| 1323.15 | eutectic: L -> CrB+Ni3B+fcc(Ni) | L: B 0.183, Cr 0.161 | experimental | [1] Campbell 2002; _cites ref. 31_ | Table 5, p. 8, row 5; `ORC-QYMCTHCV2A` |  |
| 738.15 | quasi-peritectic: L + Cr5B3 -> CrB + fcc(Ni) | L: B 0.243, Cr 0.0013; Cr5B3: B 0.375, Cr 0.625, Ni 0 | model | [1] Campbell 2002 | Table 5, p. 8, row 10; `ORC-CUF3BBENE6` |  |

## Other properties

### Crystal structure (12)

Table: Crystal structure, B–Cr–Ni system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 2.971 Å | 298.15 | Ni3Cr2B6; _alloy: B 0.545455, Cr 0.181818, Ni 0.272727_ | experimental | [1] Campbell 2002; _cites ref. 23_ | Table 1, p. 2, row 18; `ORC-5LR7SFF4SQ.d310d7` |  |
| Lattice a | 2.931 Å | 298.15 | Ni3Cr2B6; _alloy: B 0.545455, Cr 0.181818, Ni 0.272727_ | experimental | [1] Campbell 2002; _cites ref. 20_ | Table 1, p. 2, row 19; `ORC-PNDH6RAO2V.53f6ee` |  |
| Lattice a | 3.034 Å | 298.15 | NiCr3B6; _alloy: B 0.6, Cr 0.3, Ni 0.1_ | experimental | [1] Campbell 2002; _cites ref. 23_ | Table 1, p. 2, row 16; `ORC-DESG27IJOG.0ad313` |  |
| Lattice a | 3.008 Å | 298.15 | NiCr3B6; _alloy: B 0.6, Cr 0.3, Ni 0.1_ | experimental | [1] Campbell 2002; _cites ref. 20_ | Table 1, p. 2, row 17; `ORC-OZKF7L2WLZ.53e9bc` |  |
| Lattice b | 20.34 Å | 298.15 | Ni3Cr2B6; _alloy: B 0.545455, Cr 0.181818, Ni 0.272727_ | experimental | [1] Campbell 2002; _cites ref. 23_ | Table 1, p. 2, row 18; `ORC-5LR7SFF4SQ.86a079` |  |
| Lattice b | 20.631 Å | 298.15 | Ni3Cr2B6; _alloy: B 0.545455, Cr 0.181818, Ni 0.272727_ | experimental | [1] Campbell 2002; _cites ref. 20_ | Table 1, p. 2, row 19; `ORC-PNDH6RAO2V.9af95e` |  |
| Lattice b | 18.11 Å | 298.15 | NiCr3B6; _alloy: B 0.6, Cr 0.3, Ni 0.1_ | experimental | [1] Campbell 2002; _cites ref. 23_ | Table 1, p. 2, row 16; `ORC-DESG27IJOG.2890ca` |  |
| Lattice b | 17.705 Å | 298.15 | NiCr3B6; _alloy: B 0.6, Cr 0.3, Ni 0.1_ | experimental | [1] Campbell 2002; _cites ref. 20_ | Table 1, p. 2, row 17; `ORC-OZKF7L2WLZ.de32bc` |  |
| Lattice c | 3.011 Å | 298.15 | Ni3Cr2B6; _alloy: B 0.545455, Cr 0.181818, Ni 0.272727_ | experimental | [1] Campbell 2002; _cites ref. 23_ | Table 1, p. 2, row 18; `ORC-5LR7SFF4SQ.0aabb5` |  |
| Lattice c | 2.977 Å | 298.15 | Ni3Cr2B6; _alloy: B 0.545455, Cr 0.181818, Ni 0.272727_ | experimental | [1] Campbell 2002; _cites ref. 20_ | Table 1, p. 2, row 19; `ORC-PNDH6RAO2V.ea73c1` |  |
| Lattice c | 2.956 Å | 298.15 | NiCr3B6; _alloy: B 0.6, Cr 0.3, Ni 0.1_ | experimental | [1] Campbell 2002; _cites ref. 23_ | Table 1, p. 2, row 16; `ORC-DESG27IJOG.8fff2c` |  |
| Lattice c | 2.956 Å | 298.15 | NiCr3B6; _alloy: B 0.6, Cr 0.3, Ni 0.1_ | experimental | [1] Campbell 2002; _cites ref. 20_ | Table 1, p. 2, row 17; `ORC-OZKF7L2WLZ.ff642b` |  |

## Sources

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

1. C.E. Campbell, U.R. Kattner, Assessment of the Cr-B system and extrapolation to the Ni-Al-Cr-B quaternary system, Calphad 26, 477-490 (2002). [doi:10.1016/s0364-5916(02)00058-5](https://doi.org/10.1016/s0364-5916%2802%2900058-5)

## 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 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_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/).
