# Al–Co–Cr–Ni system

> Al–Co–Cr–Ni system: 94 accepted literature values (formation 88, mixing / partial 6) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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94 accepted literature values from 1 paper(s) (experimental 21, model 8, DFT 65); 0 calculated phase diagram(s).

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Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 21 |
| model | 8 |
| DFT | 65 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| formation | 88 |
| mixing / partial | 6 |

## 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–Co–Cr–Ni system (45)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| B2 | [AlNi](https://data.orchid-project.org/compounds/AlNi.html) | -67.4 kJ/mol-atom ± 2.55 |  | experimental | -63.568 (mp-aaaaacff) | -64.592 (oqmd-94913) | [1] Liu 2016; _cites ref. 83_ | Table 4, p. 38, row 7; `ORC-ZOPMVSLEXO.e80675` |  |
| B2 | [AlNi](https://data.orchid-project.org/compounds/AlNi.html) | -67.18 kJ/mol-atom | 298.15 | model | -63.568 (mp-aaaaacff) | -64.592 (oqmd-94913) | [1] Liu 2016; _cites ref. 84_ | Table 4, p. 38, row 8; `ORC-3ECLXDV23B.c8ed20` |  |
| B2 | [AlNi](https://data.orchid-project.org/compounds/AlNi.html) | -67 kJ/mol-atom |  | experimental | -63.568 (mp-aaaaacff) | -64.592 (oqmd-94913) | [1] Liu 2016; _cites ref. 83_ | Table 4, p. 38, row 7; `ORC-ZOPMVSLEXO.0e91fe` |  |
| B2 | [AlNi](https://data.orchid-project.org/compounds/AlNi.html) | -66.4 kJ/mol-atom ± 2 |  | experimental | -63.568 (mp-aaaaacff) | -64.592 (oqmd-94913) | [1] Liu 2016; _cites ref. 83_ | Table 4, p. 38, row 7; `ORC-ZOPMVSLEXO.8d90bb` |  |
| B2 | [AlNi](https://data.orchid-project.org/compounds/AlNi.html) | -66.1 kJ/mol-atom ± 1.3 | 298.15 | experimental | -63.568 (mp-aaaaacff) | -64.592 (oqmd-94913) | [1] Liu 2016; _cites ref. 83_ | Table 4, p. 38, row 6; `ORC-GEAL46TYRL.c8a88f` |  |
| B2 | [AlNi](https://data.orchid-project.org/compounds/AlNi.html) | -66 kJ/mol-atom ± 0.13 |  | experimental | -63.568 (mp-aaaaacff) | -64.592 (oqmd-94913) | [1] Liu 2016; _cites ref. 83_ | Table 4, p. 38, row 7; `ORC-ZOPMVSLEXO.b07d0a` |  |
| B2 |  | -64.211 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 5; `ORC-AGMM4WVXYR.b8e1fa` |  |
| B2 | [AlNi](https://data.orchid-project.org/compounds/AlNi.html) | -62 kJ/mol-atom |  | experimental | -63.568 (mp-aaaaacff) | -64.592 (oqmd-94913) | [1] Liu 2016; _cites ref. 83_ | Table 4, p. 38, row 7; `ORC-ZOPMVSLEXO.bce74c` |  |
| B2 | [AlCo](https://data.orchid-project.org/compounds/AlCo.html) | -60.7 kJ/mol-atom ± 0.5 | 298.15 | experimental | -58.998 (mp-aaaaaaky) | -58.889 (oqmd-10411) | [1] Liu 2016; _cites ref. 82_ | Table 4, p. 38, row 3; `ORC-WVZQPXXYGJ.0d3cd4` |  |
| B2 | [AlCo](https://data.orchid-project.org/compounds/AlCo.html) | -59.5 kJ/mol-atom | 298.15 | experimental | -58.998 (mp-aaaaaaky) | -58.889 (oqmd-10411) | [1] Liu 2016; _cites ref. 81_ | Table 4, p. 38, row 2; `ORC-IAB2LXFNOY.55268e` |  |
| B2 | [AlNi](https://data.orchid-project.org/compounds/AlNi.html) | -58.3 kJ/mol-atom ± 1.1 |  | experimental | -63.568 (mp-aaaaacff) | -64.592 (oqmd-94913) | [1] Liu 2016; _cites ref. 83_ | Table 4, p. 38, row 7; `ORC-ZOPMVSLEXO.47e6a8` |  |
| B2 |  | -57.673 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 1; `ORC-KVJ737FTEB.64d8f9` |  |
| B2 |  | -2.776 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 4; `ORC-DHM3L6FQNW.d10fd6` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -47 kJ/mol-atom |  | experimental | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 85_ | Table 4, p. 38, row 23; `ORC-VTB72Y5OXM.0759bb` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -46.39 kJ/mol-atom | 298.15 | model | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 84_ | Table 4, p. 38, row 25; `ORC-G47W2O6YVC.c159cd` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -45.6 kJ/mol-atom ± 1.1 | 298.15 | experimental | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 87_ | Table 4, p. 38, row 24; `ORC-M2X72TAQEQ.c95868` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -42.38 kJ/mol-atom | 298.15 | model | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 86_ | Table 4, p. 38, row 26; `ORC-W2ORY4WT4W.8fc6c4` |  |
| γ'-L12 |  | -42.126 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 20; `ORC-NQD4Z3IV5Z.14c693` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -41.3 kJ/mol-atom ± 1.3 | 298.15 | experimental | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 85_ | Table 4, p. 38, row 22; `ORC-RBFFWS6ZQH.8da9a7` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -40.6 kJ/mol-atom ± 1 | 298.15 | experimental | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 25_ | Table 4, p. 38, row 21; `ORC-COMWLLIR2L.4ebb85` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -40.6 kJ/mol-atom ± 1 |  | experimental | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 85_ | Table 4, p. 38, row 23; `ORC-VTB72Y5OXM.690228` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -38.2 kJ/mol-atom ± 5 |  | experimental | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 85_ | Table 4, p. 38, row 23; `ORC-VTB72Y5OXM.6dd106` |  |
| γ'-L12 | [AlNi3](https://data.orchid-project.org/compounds/AlNi3.html) | -37.6 kJ/mol-atom ± 4.2 |  | experimental | -41.884 (mp-aaaaadvt) | -42.323 (oqmd-17890) | [1] Liu 2016; _cites ref. 85_ | Table 4, p. 38, row 23; `ORC-VTB72Y5OXM.d37d98` |  |
| γ'-L12 | [Al3Ni](https://data.orchid-project.org/compounds/Al3Ni.html) | -22.9 kJ/mol-atom | 298.15 | model | -39.068 (mp-aaabjkld) | -21.441 (oqmd-344444) | [1] Liu 2016; _cites ref. 86_ | Table 4, p. 38, row 19; `ORC-UAJQ6SM4CJ.891017` |  |
| γ'-L12 | [Al3Co](https://data.orchid-project.org/compounds/Al3Co.html) | -22.6 kJ/mol-atom | 298.15 | model | -39.153 (mp-aaacrxmd) | -20.871 (oqmd-349288) | [1] Liu 2016; _cites ref. 86_ | Table 4, p. 38, row 13; `ORC-XLXYXK24GA.6151be` |  |
| γ'-L12 |  | -21.175 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 18; `ORC-BHYSNHAPXI.0f07b4` |  |
| γ'-L12 |  | -20.035 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 12; `ORC-TUUJIMUBHE.9d62d8` |  |
| γ'-L12 | [AlCo3](https://data.orchid-project.org/compounds/AlCo3.html) | -19.9 kJ/mol-atom | 298.15 | model | -17.651 (mp-aaacfybt) | -18.566 (oqmd-345882) | [1] Liu 2016; _cites ref. 86_ | Table 4, p. 38, row 15; `ORC-B5ZN3QE6GA.8b77ae` |  |
| γ'-L12 |  | -17.345 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 14; `ORC-F373OKUOF4.30fbac` |  |
| γ'-L12 |  | -12.94 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 17; `ORC-CMHURMYZWQ.65f634` |  |
| γ'-L12 |  | -9.197 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 4, p. 38, row 16; `ORC-UJ4HMQJTOB.9547b2` |  |
| σ |  | -33.053 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 13; `ORC-GKVYAUPYI6.c54040` |  |
| σ |  | -29.5 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 12; `ORC-4E4NLXOJUE.4e64ea` |  |
| σ |  | -24.582 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 11; `ORC-4X7TANOC4K.bf48b1` |  |
| σ |  | -13.385 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 10; `ORC-E4NQHLAFVI.d42125` |  |
| σ |  | 1.736 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 2; `ORC-I2WSUCN3F5.a52071` |  |
| σ |  | 6.193 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 5; `ORC-R2DXGUWV3Y.eb6d03` |  |
| σ |  | 8.339 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 9; `ORC-KQ4FXXBYZE.168757` |  |
| σ |  | 8.39 kJ/mol-atom | 298.15 | model |  |  | [1] Liu 2016; _cites ref. 88_ | Table 5, p. 39, row 6; `ORC-6YEFOEG7EN` |  |
| σ |  | 8.981 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 8; `ORC-HAZT3J2KO3.3988d9` |  |
| σ |  | 9.615 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 3; `ORC-2CSS3RWCSA.112fa5` |  |
| σ |  | 10.976 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 1; `ORC-OGREHLPYTN` |  |
| σ |  | 11.65 kJ/mol-atom | 298.15 | model |  |  | [1] Liu 2016; _cites ref. 88_ | Table 5, p. 39, row 4; `ORC-OFQYWEMTRO` |  |
| σ |  | 16.647 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 14; `ORC-PEX3KSZJ2L.e9c080` |  |
| σ |  | 23.057 kJ/mol-atom | 298.15 | DFT |  |  | [1] Liu 2016 | Table 5, p. 39, row 15; `ORC-YJRPILY4UR.d72afc` |  |

## Other properties

### Formation (43)

Table: Formation, Al–Co–Cr–Ni system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy of formation; _printed: ΔfS298_ | -4.241 J/mol-atom/K | 298.15 | B2; _alloy: Co 0, Cr 0, Ni 0.5_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 5; `ORC-AGMM4WVXYR.f46a39` |  |
| Entropy of formation; _printed: ΔfS298_ | -6.449 J/mol-atom/K | 298.15 | B2; _alloy: Co 0, Cr 0.5, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 4; `ORC-DHM3L6FQNW.0b1b59` |  |
| Entropy of formation; _printed: ΔfS298_ | -8.231 J/mol-atom/K | 298.15 | B2; _alloy: Co 0.5, Cr 0, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 1; `ORC-KVJ737FTEB.11d6ba` |  |
| Entropy of formation; _printed: ΔfS298_ | -1.268 J/mol-atom/K | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.25_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 18; `ORC-BHYSNHAPXI.ebade5` |  |
| Entropy of formation; _printed: ΔfS298_ | 4.043 J/mol-atom/K | 298.15 | γ'-L12; _alloy: Co 0.75, Cr 0, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 14; `ORC-F373OKUOF4.7ee964` |  |
| Entropy of formation; _printed: ΔfS298_ | -4.05 J/mol-atom/K ± 1.2 | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.75_ | experimental | [1] Liu 2016; _cites ref. 87_ | Table 4, p. 38, row 24; `ORC-M2X72TAQEQ.0c03a2` |  |
| Entropy of formation; _printed: ΔfS298_ | -2.187 J/mol-atom/K | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.75_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 20; `ORC-NQD4Z3IV5Z.138874` |  |
| Entropy of formation; _printed: ΔfS298_ | -5.627 J/mol-atom/K | 298.15 | γ'-L12; _alloy: Co 0.25, Cr 0, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 12; `ORC-TUUJIMUBHE.9e1d7d` |  |
| Entropy of formation; _printed: ΔfS298_ | -6.699 J/mol-atom/K | 298.15 | γ'-L12; _alloy: Co 0, Cr 0.25, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 16; `ORC-UJ4HMQJTOB.6d33ea` |  |
| Entropy of formation; _printed: ΔfS298_ | 3.597 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 3; `ORC-2CSS3RWCSA.250e9a` |  |
| Entropy of formation; _printed: ΔfS298_ | -0.119 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 12; `ORC-4E4NLXOJUE.65396c` |  |
| Entropy of formation; _printed: ΔfS298_ | -4.048 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 11; `ORC-4X7TANOC4K.9c7620` |  |
| Entropy of formation; _printed: ΔfS298_ | -1.127 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 10; `ORC-E4NQHLAFVI.d437eb` |  |
| Entropy of formation; _printed: ΔfS298_ | -4.952 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 13; `ORC-GKVYAUPYI6.75bd15` |  |
| Entropy of formation; _printed: ΔfS298_ | 5.048 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 8; `ORC-HAZT3J2KO3.6b8dda` |  |
| Entropy of formation; _printed: ΔfS298_ | -2.624 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 2; `ORC-I2WSUCN3F5.f7c8d5` |  |
| Entropy of formation; _printed: ΔfS298_ | -2.663 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 9; `ORC-KQ4FXXBYZE.682787` |  |
| Entropy of formation; _printed: ΔfS298_ | 3.533 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 14; `ORC-PEX3KSZJ2L.9ea145` |  |
| Entropy of formation; _printed: ΔfS298_ | 0.157 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 5; `ORC-R2DXGUWV3Y.f94802` |  |
| Entropy of formation; _printed: ΔfS298_ | 1.456 unknown | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 15; `ORC-YJRPILY4UR.56d362` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -62.947 kJ/mol-atom | 298.15 | B2; _alloy: Co 0, Cr 0, Ni 0.5_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 5; `ORC-AGMM4WVXYR.0e5404` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -0.854 kJ/mol-atom | 298.15 | B2; _alloy: Co 0, Cr 0.5, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 4; `ORC-DHM3L6FQNW.4ba847` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -55.22 kJ/mol-atom | 298.15 | B2; _alloy: Co 0.5, Cr 0, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 1; `ORC-KVJ737FTEB.3ecc22` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -20.798 kJ/mol-atom | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.25_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 18; `ORC-BHYSNHAPXI.f265ab` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -18.55 kJ/mol-atom | 298.15 | γ'-L12; _alloy: Co 0.75, Cr 0, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 14; `ORC-F373OKUOF4.091243` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -34.2 kJ/mol-atom ± 0.33 | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.75_ | experimental | [1] Liu 2016; _cites ref. 87_ | Table 4, p. 38, row 24; `ORC-M2X72TAQEQ.8a1e5a` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -36.2 kJ/mol-atom | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.75_ | experimental | [1] Liu 2016; _cites ref. 87_ | Table 4, p. 38, row 24; `ORC-M2X72TAQEQ.ad4d3f` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -41.9 kJ/mol-atom ± 0.2 | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.75_ | experimental | [1] Liu 2016; _cites ref. 87_ | Table 4, p. 38, row 24; `ORC-M2X72TAQEQ.d019cc` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -47.5 kJ/mol-atom ± 1.1 | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.75_ | experimental | [1] Liu 2016; _cites ref. 87_ | Table 4, p. 38, row 24; `ORC-M2X72TAQEQ.ecef70` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -41.474 kJ/mol-atom | 298.15 | γ'-L12; _alloy: Co 0, Cr 0, Ni 0.75_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 20; `ORC-NQD4Z3IV5Z.db92c2` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -18.358 kJ/mol-atom | 298.15 | γ'-L12; _alloy: Co 0.25, Cr 0, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 12; `ORC-TUUJIMUBHE.abfe8b` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -7.2 kJ/mol-atom | 298.15 | γ'-L12; _alloy: Co 0, Cr 0.25, Ni 0_ | DFT | [1] Liu 2016 | Table 4, p. 38, row 16; `ORC-UJ4HMQJTOB.8a9748` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | 8.543 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 3; `ORC-2CSS3RWCSA.28ef59` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -29.208 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 12; `ORC-4E4NLXOJUE.fed53f` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -23.375 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 11; `ORC-4X7TANOC4K.876784` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -13.049 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 10; `ORC-E4NQHLAFVI.19147d` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | -31.578 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 13; `ORC-GKVYAUPYI6.0ccc24` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | 7.476 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 8; `ORC-HAZT3J2KO3.43023a` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | 2.518 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 2; `ORC-I2WSUCN3F5.5c8459` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | 9.133 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 9; `ORC-KQ4FXXBYZE.03ae17` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | 15.594 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 14; `ORC-PEX3KSZJ2L.29bfa1` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | 6.146 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 5; `ORC-R2DXGUWV3Y.1df4d1` |  |
| Gibbs energy of formation; _printed: ΔfG298_ | 22.608 kJ/mol-atom | 298.15 | σ | DFT | [1] Liu 2016 | Table 5, p. 39, row 15; `ORC-YJRPILY4UR.31ee73` |  |

### Mixing / partial (6)

Table: Mixing / partial, Al–Co–Cr–Ni system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Enthalpy of mixing; _printed: ΔHmix_ | -25.82 kJ/mol-atom | 0 | A2; _alloy: Al 0.33, Co 0.33, Cr 0.01, Ni 0.33_ | DFT | [1] Liu 2016 | Table 6, p. 40, row 26; `ORC-3UZ3TZACIU` |  |
| Enthalpy of mixing; _printed: ΔHmix_ | -7.46 kJ/mol-atom | 0 | A2; _alloy: Al 0.33, Co 0.33, Cr 0.33, Ni 0.01_ | DFT | [1] Liu 2016; _cites Al11Cr2_ | Table 6, p. 40, row 22; `ORC-EHSIH6MH4L` |  |
| Enthalpy of mixing; _printed: ΔHmix_ | 3.83 kJ/mol-atom | 0 | A2; _alloy: Al 0.01, Co 0.33, Cr 0.33, Ni 0.33_ | DFT | [1] Liu 2016 | Table 6, p. 40, row 30; `ORC-OS5IVTXPX6` |  |
| Enthalpy of mixing; _printed: ΔHmix_ | -15.33 kJ/mol-atom | 0 | γ; _alloy: Al 0.33, Co 0.33, Cr 0.33, Ni 0.01_ | DFT | [1] Liu 2016 | Table 7, p. 41, row 22; `ORC-3TOSQGHNGM` |  |
| Enthalpy of mixing; _printed: ΔHmix_ | -22.62 kJ/mol-atom | 0 | γ; _alloy: Al 0.33, Co 0.33, Cr 0.01, Ni 0.33_ | DFT | [1] Liu 2016 | Table 7, p. 41, row 26; `ORC-4RXVDM6W2U` |  |
| Enthalpy of mixing; _printed: ΔHmix_ | -5.9 kJ/mol-atom | 0 | γ; _alloy: Al 0.01, Co 0.33, Cr 0.33, Ni 0.33_ | DFT | [1] Liu 2016 | Table 7, p. 41, row 30; `ORC-GFVKETY64Q` |  |

## Sources

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

1. Xuan L. Liu, Greta Lindwall, Thomas Gheno, Zi-Kui Liu, Thermodynamic modeling of Al–Co–Cr, Al–Co–Ni, Co–Cr–Ni ternary systems towards a description for Al–Co–Cr–Ni, Calphad 52, 125-142 (2016). [doi:10.1016/j.calphad.2015.12.007](https://doi.org/10.1016/j.calphad.2015.12.007)

## 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/).