Co–Cr system
44 accepted literature values from 5 paper(s) (experimental 10, model 2, DFT 32); 10 calculated phase diagram(s). 4 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.
Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (9) · papers (bibliography) · Markdown
| Evidence class | Values |
|---|---|
| experimental | 10 |
| model | 2 |
| DFT | 32 |
| Property group | Values |
|---|---|
| phase equilibrium | 7 |
| formation | 17 |
| mixing / partial | 15 |
| activity / EMF / Gibbs energy | 2 |
| crystal structure | 3 |
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.
| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| CoCr-01Oik.tdb | K. Oikawa, G.W. Qin, T. Ikeshoji, O. Kitakami, Y. Shimada, K. Ishida, K. Fukamichi, J. Magn. Magn. Mater., 236, 220-33(2001). doi:10.1016/S0304-8853(00)00520-5 | 57d2f2a8706dc2393965814cb6a354343fb837b58440fbbaf866390b28dad1de | viewer · TDB · JSON |
| CoCr-02Oik.tdb | K. Oikawa, G.-W. Qin, T. Ikeshoji, R. Kainuma, K. Ishida, Acta Mater., 50, 2223-32(2002). doi:10.1016/S1359-6454(01)00433-5 | 0dd550c23273e5cf3f733b20435862fa65f8a78917012469aa1b962876322567 | viewer · TDB · JSON |
| CoCr-18Cac.tdb | G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018). doi:10.1016/j.jallcom.2017.09.327 | d43dc8f1217be4a80f00d1b0772988997519c925dff1bb48f9ea8570c0adc0d9 | viewer · TDB · JSON |
| CoCr-19Wan.tdb | P. Wang, M.C. Peters, U.R. Kattner, K. Choudhary, G.B. Olson, Intermetallics, 105, 13-20(2019). doi:10.1016/j.intermet.2018.11.004 | 4875fa24c4f980cd07832cae588681889c74ce2b36384857eb730d79af99e04e | viewer · TDB · JSON |
| CoCr-20Ost.tdb | M. Ostrowska, G. Cacciamani, J. Alloys Compd, 845, 156122(2020). doi:10.1016/j.jallcom.2020.156122 | c1b476f7f08744ab59ffd0311faaead7625b58ee222d710a1803514d7fc916b2 | viewer · TDB · JSON |
| CoCr-20Zha.tdb | N. Zhao, W. Liu, J.-J. Wang, X.-G. Lu, L. Zhang, Calphad, 71, 101996(2020). doi:10.1016/j.calphad.2020.101996 | e8c86411f86b27256cf5dc90d7502a718faaaf811a996b25a41a6d011a7d0c96 | viewer · TDB · JSON |
| CoCr-23Sha.tdb | G. Shang, C.-H. Xia, Z.-Z. Liu, X.-G. Lu, Calphad, 80, 102526(2023). doi:10.1016/j.calphad.2022.102526 | 499be26cf3d8b68c1fd9d4c9d24fc7ac482743bb28b9b16059bc349775bf5498 | viewer · TDB · JSON |
| CoCr-24Per.tdb | J.C. Pereira dos Santos, S. Griesemer, N. Dupin, U.R. Kattner, C. Liu, D. Ivanova, T. Hammerschmidt, S.G. Fries, C. Wolverton, C.E. Campbell, J. Phase Equilib. Diffus., 45, 330-57(2024). doi:10.1007/s11669-023-01079-3 | b109b5d55d4c95c09415d0e86b7ccd46b4c15496becfcf70700039e0602caeac | viewer · TDB · JSON |
| CoCr-88Jan.tdb | B. Jansson, IM-2347 report, 1988. | c6d50d8fb6f4b32935613e63113da00ba6373027125e4f38474d977c6c3f47d3 | viewer · TDB · JSON |
| CoCr-97Kus-LB.tdb | A. Kusoffsky, B. Jansson, Calphad, 21, 321-33(1997). doi:10.1016/S0364-5916(97)00033-3 | 1b1278fbadb50a2d2f9fe791f4115e6fef38122859ec196d2273338e98eb028c | viewer · TDB · JSON |
| TDB file | T (K) | Phases at the invariant |
|---|---|---|
| CoCr-01Oik.tdb | 1655.6 | FCC_A1 (x(Cr) 0.39837) + LIQUID (x(Cr) 0.43836) + BCC_A2 (x(Cr) 0.49351) |
| CoCr-01Oik.tdb | 1545.98 | FCC_A1 (x(Cr) 0.43304) + BCC_A2 (x(Cr) 0.55973) + SIGMA_OLD (x(Cr) 0.57638) |
| CoCr-01Oik.tdb | 1280.15 | FCC_A1 (x(Cr) 0.37119) + HCP_A3 (x(Cr) 0.41474) + SIGMA_OLD (x(Cr) 0.54193) |
| CoCr-01Oik.tdb | 1061.8 | FCC_A1 (x(Cr) 0.02585) + FCC_A1#2 (x(Cr) 0.13946) + HCP_A3 (x(Cr) 0.15069) |
| CoCr-01Oik.tdb | 1053.89 | FCC_A1 (x(Cr) 0.02488) + HCP_A3#2 (x(Cr) 0.04457) + HCP_A3 (x(Cr) 0.15464) |
| CoCr-01Oik.tdb | 676.13 | HCP_A3 (x(Cr) 0.03067) + HCP_A3#2 (x(Cr) 0.32856) + SIGMA_OLD (x(Cr) 0.54023) |
| CoCr-02Oik.tdb | 1673.7 | FCC_A1 (x(Cr) 0.40363) + LIQUID (x(Cr) 0.44941) + BCC_A2 (x(Cr) 0.49993) |
| CoCr-02Oik.tdb | 1556.48 | FCC_A1 (x(Cr) 0.43363) + SIGMA_OLD (x(Cr) 0.55422) + BCC_A2 (x(Cr) 0.55932) |
| CoCr-02Oik.tdb | 1269.19 | FCC_A1 (x(Cr) 0.37682) + HCP_A3 (x(Cr) 0.39281) + SIGMA_OLD (x(Cr) 0.54193) |
| CoCr-02Oik.tdb | 1036.3 | FCC_A1 (x(Cr) 0.02951) + FCC_A1#2 (x(Cr) 0.15029) + HCP_A3 (x(Cr) 0.16152) |
| CoCr-02Oik.tdb | 742.1 | FCC_A1 (x(Cr) 0.01406) + HCP_A3#2 (x(Cr) 0.01955) + HCP_A3 (x(Cr) 0.30281) |
| CoCr-02Oik.tdb | 604.98 | HCP_A3 (x(Cr) 0.01129) + HCP_A3#2 (x(Cr) 0.37789) + SIGMA_OLD (x(Cr) 0.62911) |
| CoCr-18Cac.tdb | 1674.75 | FCC_A1 (x(Cr) 0.40069) + LIQUID (x(Cr) 0.44615) + BCC_A2 (x(Cr) 0.47304) |
| CoCr-18Cac.tdb | 1530.28 | FCC_A1 (x(Cr) 0.44766) + SIGMA_D8B (x(Cr) 0.54072) + BCC_A2 (x(Cr) 0.56078) |
| CoCr-18Cac.tdb | 1252.53 | FCC_A1 (x(Cr) 0.38744) + HCP_A3 (x(Cr) 0.40517) + SIGMA_D8B (x(Cr) 0.5163) |
| CoCr-18Cac.tdb | 1016.99 | FCC_A1 (x(Cr) 0.02862) + FCC_A1#2 (x(Cr) 0.16032) + HCP_A3 (x(Cr) 0.17149) |
| CoCr-18Cac.tdb | 736.59 | FCC_A1 (x(Cr) 0.01404) + HCP_A3#2 (x(Cr) 0.01907) + HCP_A3 (x(Cr) 0.30665) |
| CoCr-18Cac.tdb | 589.23 | HCP_A3 (x(Cr) 0.01026) + HCP_A3#2 (x(Cr) 0.38765) + SIGMA_D8B (x(Cr) 0.5537) |
| CoCr-19Wan.tdb | 1918.26 | LIQUID (x(Cr) 0.75976) + SIGMA_ORD (x(Cr) 0.77335) + BCC_A2 (x(Cr) 0.85174) |
| CoCr-19Wan.tdb | 1676.01 | FCC_A1 (x(Cr) 0.39087) + LIQUID (x(Cr) 0.431) + SIGMA_ORD (x(Cr) 0.58637) |
| CoCr-19Wan.tdb | 1224.58 | FCC_A1 (x(Cr) 0.34381) + HCP_A3 (x(Cr) 0.37091) + SIGMA_ORD (x(Cr) 0.59469) |
| CoCr-19Wan.tdb | 1061.69 | FCC_A1 (x(Cr) 0.02601) + FCC_A1#2 (x(Cr) 0.1293) + HCP_A3 (x(Cr) 0.14538) |
| CoCr-19Wan.tdb | 947.59 | FCC_A1 (x(Cr) 0.01672) + HCP_A3#2 (x(Cr) 0.03394) + HCP_A3 (x(Cr) 0.19758) |
| CoCr-19Wan.tdb | 658.13 | HCP_A3 (x(Cr) 0.38772) + SIGMA_D8B (x(Cr) 0.58612) + SIGMA_ORD (x(Cr) 0.66057) |
| CoCr-19Wan.tdb | 589.58 | HCP_A3 (x(Cr) 0.01826) + HCP_A3#2 (x(Cr) 0.38309) + SIGMA_D8B (x(Cr) 0.59106) |
| CoCr-19Wan.tdb | 523.84 | HCP_A3 (x(Cr) 0.01316) + SIGMA_D8B (x(Cr) 0.6135) + SIGMA_ORD (x(Cr) 0.68617) |
| CoCr-19Wan.tdb | 364.93 | HCP_A3 (x(Cr) 0.00338) + SIGMA_ORD (x(Cr) 0.74674) + BCC_A2 (x(Cr) 0.99984) |
| CoCr-20Ost.tdb | 1669.79 | FCC_A1 (x(Cr) 0.40401) + LIQUID (x(Cr) 0.44554) + BCC_A2 (x(Cr) 0.48095) |
| CoCr-20Ost.tdb | 1525.05 | FCC_A1 (x(Cr) 0.42111) + BCC_A2 (x(Cr) 0.51356) + SIGMA_D8B (x(Cr) 0.5569) |
| CoCr-20Ost.tdb | 1242.19 | FCC_A1 (x(Cr) 0.36405) + HCP_A3 (x(Cr) 0.39346) + SIGMA_D8B (x(Cr) 0.53498) |
| CoCr-20Ost.tdb | 1061.69 | FCC_A1 (x(Cr) 0.02601) + FCC_A1#2 (x(Cr) 0.1293) + HCP_A3 (x(Cr) 0.14538) |
| CoCr-20Ost.tdb | 947.59 | FCC_A1 (x(Cr) 0.01672) + HCP_A3#2 (x(Cr) 0.03394) + HCP_A3 (x(Cr) 0.19758) |
| CoCr-20Ost.tdb | 593.97 | HCP_A3 (x(Cr) 0.01849) + HCP_A3#2 (x(Cr) 0.38038) + SIGMA_D8B (x(Cr) 0.58042) |
| CoCr-20Ost.tdb | 384.54 | HCP_A3 (x(Cr) 0.0045) + SIGMA_D8B (x(Cr) 0.65702) + BCC_A2 (x(Cr) 0.99971) |
| CoCr-20Zha.tdb | 1670.35 | FCC_A1 (x(Cr) 0.40915) + LIQUID (x(Cr) 0.44781) + BCC_A2 (x(Cr) 0.48232) |
| CoCr-20Zha.tdb | 1536.44 | FCC_A1 (x(Cr) 0.42803) + BCC_A2 (x(Cr) 0.52066) + SIGMA_D8B (x(Cr) 0.56034) |
| CoCr-20Zha.tdb | 1251.77 | FCC_A1 (x(Cr) 0.37294) + HCP_A3 (x(Cr) 0.41175) + SIGMA_D8B (x(Cr) 0.54882) |
| CoCr-20Zha.tdb | 1051.46 | FCC_A1 (x(Cr) 0.02653) + FCC_A1#2 (x(Cr) 0.14931) + HCP_A3 (x(Cr) 0.16743) |
| CoCr-20Zha.tdb | 992.83 | FCC_A1 (x(Cr) 0.02126) + HCP_A3#2 (x(Cr) 0.03904) + HCP_A3 (x(Cr) 0.19599) |
| CoCr-20Zha.tdb | 710.61 | HCP_A3#2 (x(Cr) 0.02608) + HCP_A3 (x(Cr) 0.35042) + SIGMA_D8B (x(Cr) 0.61103) |
| CoCr-23Sha.tdb | 1670.79 | FCC_A1 (x(Cr) 0.40674) + LIQUID (x(Cr) 0.44523) + BCC_A2 (x(Cr) 0.47922) |
| CoCr-23Sha.tdb | 1528.17 | FCC_A1 (x(Cr) 0.42698) + BCC_A2 (x(Cr) 0.52014) + SIGMA_D8B (x(Cr) 0.56673) |
| CoCr-23Sha.tdb | 1242.92 | FCC_A1 (x(Cr) 0.36233) + HCP_A3 (x(Cr) 0.39978) + SIGMA_D8B (x(Cr) 0.52988) |
| CoCr-23Sha.tdb | 1052.61 | FCC_A1 (x(Cr) 0.02658) + FCC_A1#2 (x(Cr) 0.14866) + HCP_A3 (x(Cr) 0.16678) |
| CoCr-23Sha.tdb | 993.44 | FCC_A1 (x(Cr) 0.02125) + HCP_A3#2 (x(Cr) 0.03907) + HCP_A3 (x(Cr) 0.19566) |
| CoCr-23Sha.tdb | 663.06 | HCP_A3 (x(Cr) 0.02367) + HCP_A3#2 (x(Cr) 0.3815) + SIGMA_D8B (x(Cr) 0.55303) |
| CoCr-23Sha.tdb | 453.21 | HCP_A3 (x(Cr) 0.00878) + SIGMA_D8B (x(Cr) 0.61969) + BCC_A2 (x(Cr) 0.99865) |
| CoCr-24Per.tdb | 1669.75 | FCC_A1 (x(Cr) 0.40409) + LIQUID (x(Cr) 0.44563) + BCC_A2 (x(Cr) 0.48102) |
| CoCr-24Per.tdb | 1532.13 | FCC_A1 (x(Cr) 0.42037) + BCC_A2 (x(Cr) 0.51193) + SIGMA_D8B (x(Cr) 0.5552) |
| CoCr-24Per.tdb | 1260.24 | FCC_A1 (x(Cr) 0.38364) + HCP_A3 (x(Cr) 0.41555) + SIGMA_D8B (x(Cr) 0.54105) |
| CoCr-24Per.tdb | 1061.69 | FCC_A1 (x(Cr) 0.02601) + FCC_A1#2 (x(Cr) 0.1293) + HCP_A3 (x(Cr) 0.14538) |
| CoCr-24Per.tdb | 947.59 | FCC_A1 (x(Cr) 0.01672) + HCP_A3#2 (x(Cr) 0.03394) + HCP_A3 (x(Cr) 0.19758) |
| CoCr-24Per.tdb | 564.68 | HCP_A3 (x(Cr) 0.01695) + HCP_A3#2 (x(Cr) 0.39889) + SIGMA_D8B (x(Cr) 0.58414) |
| CoCr-24Per.tdb | 388.49 | HCP_A3 (x(Cr) 0.00475) + SIGMA_D8B (x(Cr) 0.62915) + BCC_A2 (x(Cr) 0.99968) |
| CoCr-88Jan.tdb | 1669.95 | FCC_A1 (x(Cr) 0.41257) + LIQUID (x(Cr) 0.45271) + BCC_A2 (x(Cr) 0.51178) |
| CoCr-88Jan.tdb | 1542.3 | FCC_A1 (x(Cr) 0.43594) + BCC_A2 (x(Cr) 0.55514) + SIGMA_OLD (x(Cr) 0.58161) |
| CoCr-88Jan.tdb | 1240.31 | FCC_A1 (x(Cr) 0.36752) + HCP_A3 (x(Cr) 0.40545) + SIGMA_OLD (x(Cr) 0.53821) |
| CoCr-88Jan.tdb | 1040.03 | FCC_A1 (x(Cr) 0.02537) + FCC_A1#2 (x(Cr) 0.14195) + HCP_A3 (x(Cr) 0.17405) |
| CoCr-88Jan.tdb | 727.64 | FCC_A1 (x(Cr) 0.00392) + HCP_A3#2 (x(Cr) 0.00759) + HCP_A3 (x(Cr) 0.35309) |
| CoCr-88Jan.tdb | 656.21 | HCP_A3 (x(Cr) 0.00497) + HCP_A3#2 (x(Cr) 0.40476) + SIGMA_OLD (x(Cr) 0.55492) |
| CoCr-88Jan.tdb | 463.67 | HCP_A3 (x(Cr) 5.900e-4) + SIGMA_OLD (x(Cr) 0.65511) + BCC_A2 (x(Cr) 0.99849) |
| CoCr-97Kus-LB.tdb | 1668.32 | FCC_A1 (x(Cr) 0.41363) + LIQUID (x(Cr) 0.45008) + BCC_A2 (x(Cr) 0.49673) |
| CoCr-97Kus-LB.tdb | 1555.94 | SIGMA_D8B (x(Cr) 0.59655) + SIGMA_OLD (x(Cr) 0.60033) + BCC_A2 (x(Cr) 0.60161) |
| CoCr-97Kus-LB.tdb | 1544.47 | BCC_A2 (x(Cr) 0.54892) + SIGMA_OLD (x(Cr) 0.57567) + SIGMA_D8B (x(Cr) 0.5817) |
| CoCr-97Kus-LB.tdb | 1533.85 | FCC_A1 (x(Cr) 0.42967) + BCC_A2 (x(Cr) 0.52894) + SIGMA_OLD (x(Cr) 0.56554) |
| CoCr-97Kus-LB.tdb | 1498.18 | FCC_A1 (x(Cr) 0.4207) + SIGMA_OLD (x(Cr) 0.5614) + SIGMA_D8B (x(Cr) 0.57271) |
| CoCr-97Kus-LB.tdb | 1237.76 | FCC_A1 (x(Cr) 0.35146) + HCP_A3 (x(Cr) 0.39027) + SIGMA_D8B (x(Cr) 0.55183) |
| CoCr-97Kus-LB.tdb | 1052.14 | FCC_A1 (x(Cr) 0.02512) + FCC_A1#2 (x(Cr) 0.13787) + HCP_A3 (x(Cr) 0.17221) |
| CoCr-97Kus-LB.tdb | 729.41 | FCC_A1 (x(Cr) 0.00358) + HCP_A3 (x(Cr) 0.35866) + SIGMA_D8B (x(Cr) 0.57321) |
| CoCr-97Kus-LB.tdb | 727.75 | FCC_A1 (x(Cr) 0.00353) + HCP_A3 (x(Cr) 0.00719) + SIGMA_D8B (x(Cr) 0.57371) |
| CoCr-97Kus-LB.tdb | 388.96 | SIGMA_D8B (x(Cr) 0.65792) + SIGMA_OLD (x(Cr) 0.71727) + BCC_A2 (x(Cr) 0.99969) |
| CoCr-97Kus-LB.tdb | 378.19 | HCP_A3 (x(Cr) 9.000e-5) + SIGMA_D8B (x(Cr) 0.65824) + BCC_A2 (x(Cr) 0.99976) |
Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CoCr-01Oik · CALPHAD hull CoCr-02Oik · CALPHAD hull CoCr-18Cac · CALPHAD hull CoCr-19Wan · CALPHAD hull CoCr-20Ost · CALPHAD hull CoCr-20Zha · CALPHAD hull CoCr-23Sha · CALPHAD hull CoCr-88Jan · CALPHAD hull CoCr-97Kus-LB
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.
| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|---|
| B2 | 16.597 kJ/mol-atom | 298.15 | DFT | [1] Liu 2016 | Table 4, p. 38, row 9 report | ||||
| B2-β | 11.99 kJ/mol-atom | 0 | DFT | [1] Liu 2016 cites Al11Cr2 | Table 6, p. 40, row 11 report | ||||
| CoCr | CoCr | 6.77 kJ/mol-atom | 473 | experimental | 14.816 (mp-aaacfmex) | 2.922 (oqmd-1484947) | [2] Liu 2015 cites ref. 67 | p. 9 report | However, Downie and Arslan [67] measured the formation enthalpy of one σCoCr sample close to the composition of the end-member σ-(Co)8(Cr)18(Cr)4 at 473 K and found ΔfH = 6.77 kJ/mol-atom. |
| L12-γ’ | -10.48 kJ/mol-atom | 0 | DFT | [1] Liu 2016 | Table 7, p. 41, row 12 report | ||||
| L12-γ’ | -5.04 kJ/mol-atom | 0 | DFT | [1] Liu 2016 | Table 7, p. 41, row 10 report | ||||
| γ' | -10.48 kJ/mol-atom | 0 | DFT | [1] Liu 2016 | Table 7, p. 41, row 12 report | ||||
| γ' | -5.04 kJ/mol-atom | 0 | DFT | [1] Liu 2016 | Table 7, p. 41, row 10 report | ||||
| γ'-L12 | 6.475 kJ/mol-atom | 298.15 | DFT | [1] Liu 2016 | Table 4, p. 38, row 27 report | ||||
| γ'-L12 | 18.079 kJ/mol-atom | 298.15 | DFT | [1] Liu 2016 | Table 4, p. 38, row 28 report | ||||
| σ | 6.77 per mol-atom ± 0.05 | 298.15 | experimental | [1] Liu 2016 cites ref. 14 | Table 5, p. 39, row 7 report | ||||
| σ | 6.77 kJ/mol-atom | 473 | experimental | [1] Liu 2016 cites ref. 14 | p. 17 report | Downie and Arslan [14] studied the formation enthalpy of one σ-CoCr sample close to the composition of the end-member σ-(Co)8(Cr)18(Cr)4 at 473 K and measured enthalpies of formation of 6.77 kJ/molatom. |
Other properties
Phase equilibrium (7)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Phase composition | 1023.15 | fcc_ferro + hcp_para + fccferro + hcppara fcc_ferro: Co 0.974, Cr 0.026; hcp_para: Co 0.828, Cr 0.172; fccferro: Co 0.974, Cr 0.026; hcppara: Co 0.828, Cr 0.172 | experimental | [3] Oikawa 2002 | Table 1, p. 5, row 7 report | ||
| Phase composition | 1073.15 | fcc_ferro + fcc_para + fccferro + fccpara fcc_ferro: Co 0.968, Cr 0.032; fcc_para: Co 0.875, Cr 0.125; fccferro: Co 0.968, Cr 0.032; fccpara: Co 0.875, Cr 0.125 | experimental | [3] Oikawa 2002 | Table 1, p. 5, row 5 report | ||
| Phase composition | 1073.15 | fcc_para + hcp_para + fccpara + hcppara fcc_para: Co 0.822, Cr 0.178; hcp_para: Co 0.802, Cr 0.198; fccpara: Co 0.822, Cr 0.178; hcppara: Co 0.802, Cr 0.198 | experimental | [3] Oikawa 2002 | Table 1, p. 5, row 6 report | ||
| Phase composition | 1123.15 | fcc_ferro + fcc_para + fccferro + fccpara fcc_ferro: Co 0.969, Cr 0.031; fcc_para: Co 0.925, Cr 0.075; fccferro: Co 0.969, Cr 0.031; fccpara: Co 0.925, Cr 0.075 | experimental | [3] Oikawa 2002 | Table 1, p. 5, row 3 report | ||
| Phase composition | 1123.15 | fcc_para + hcp_para + fccpara + hcppara fcc_para: Co 0.779, Cr 0.221; hcp_para: Co 0.759, Cr 0.241; fccpara: Co 0.779, Cr 0.221; hcppara: Co 0.759, Cr 0.241 | experimental | [3] Oikawa 2002 | Table 1, p. 5, row 4 report | ||
| Phase composition | 1173.15 | fcc_ferro + fcc_para + fccferro + fccpara fcc_ferro: Co 0.969, Cr 0.031; fcc_para: Co 0.942, Cr 0.058; fccferro: Co 0.969, Cr 0.031; fccpara: Co 0.942, Cr 0.058 | experimental | [3] Oikawa 2002 | Table 1, p. 5, row 1 report | ||
| Phase composition | 1173.15 | fcc_para + hcp_para + fccpara + hcppara fcc_para: Co 0.741, Cr 0.259; hcp_para: Co 0.724, Cr 0.276; fccpara: Co 0.741, Cr 0.259; hcppara: Co 0.724, Cr 0.276 | experimental | [3] Oikawa 2002 | Table 1, p. 5, row 2 report |
Formation (6)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Entropy of formation printed: ΔfS298 | 1.031 J/mol-atom/K | 298.15 | B2 alloy: Co 0.5, Cr 0.5 | DFT | [1] Liu 2016 | Table 4, p. 38, row 9 report | |
| Entropy of formation printed: ΔfS298 | -2.176 J/mol-atom/K | 298.15 | γ'-L12 alloy: Co 0.75, Cr 0.25 | DFT | [1] Liu 2016 | Table 4, p. 38, row 27 report | |
| Entropy of formation printed: ΔfS298 | 4.662 J/mol-atom/K | 298.15 | γ'-L12 alloy: Co 0.25, Cr 0.75 | DFT | [1] Liu 2016 | Table 4, p. 38, row 28 report | |
| Gibbs energy of formation printed: ΔfG298 | 16.289 kJ/mol-atom | 298.15 | B2 alloy: Co 0.5, Cr 0.5 | DFT | [1] Liu 2016 | Table 4, p. 38, row 9 report | |
| Gibbs energy of formation printed: ΔfG298 | 7.123 kJ/mol-atom | 298.15 | γ'-L12 alloy: Co 0.75, Cr 0.25 | DFT | [1] Liu 2016 | Table 4, p. 38, row 27 report | |
| Gibbs energy of formation printed: ΔfG298 | 16.69 kJ/mol-atom | 298.15 | γ'-L12 alloy: Co 0.25, Cr 0.75 | DFT | [1] Liu 2016 | Table 4, p. 38, row 28 report |
Mixing / partial (15)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Enthalpy of mixing printed: ΔHmix | 9.59 kJ/mol-atom | 0 | A2 alloy: Co 0.25, Cr 0.75 | DFT | [2] Liu 2015 | Table 4, p. 13, row 6 report | |
| Enthalpy of mixing printed: ΔHmix | 9.99 kJ/mol-atom | 0 | A2 alloy: Co 0.75, Cr 0.25 | DFT | [2] Liu 2015 | Table 4, p. 13, row 4 report | |
| Enthalpy of mixing printed: ΔHmix | 9.59 kJ/mol-atom | 0 | A2 alloy: Co 0.25, Cr 0.75 | DFT | [1] Liu 2016 cites Al11Cr2 | Table 6, p. 40, row 12 report | |
| Enthalpy of mixing printed: ΔHmix | 11.98 kJ/mol-atom | 0 | A2 alloy: Co 0.5, Cr 0.5 | DFT | [2] Liu 2015 | Table 4, p. 13, row 5 report | |
| Enthalpy of mixing printed: ΔHmix | 11.98 kJ/mol-atom | 0 | A2 alloy: Co 0.5, Cr 0.5 | DFT | [1] Liu 2016 cites Al11Cr2 | Table 6, p. 40, row 11 report | |
| Enthalpy of mixing printed: ΔHmix | 9.99 kJ/mol-atom | 0 | A2 alloy: Co 0.75, Cr 0.25 | DFT | [1] Liu 2016 cites Al11Cr2 | Table 6, p. 40, row 10 report | |
| Enthalpy of mixing printed: ΔHmix | 11.99 kJ/mol-atom | 0 | B2 alloy: Co 0.5, Cr 0.5 | DFT | [2] Liu 2015 | Table 4, p. 13, row 19 report | |
| Enthalpy of mixing printed: ΔHmix | 11.99 kJ/mol-atom | 0 | B2 alloy: Co 0.5, Cr 0.5 | DFT | [1] Liu 2016 | Table 8, p. 42, row 22 report | |
| Enthalpy of mixing printed: ΔHmix | 11.99 kJ/mol-atom | 0 | B2 alloy: Co 0.5, Cr 0.5 | DFT | [1] Liu 2016 cites Al11Cr2 | Table 8, p. 42, row 6 report | |
| Enthalpy of mixing printed: ΔmixH^SQS | -7.568 kJ/mol-atom | fcc alloy: Co 0.5, Cr 0.5 | DFT | [4] Bracq 2021 | Table 1, p. 4, row 1 report | ||
| Enthalpy of mixing printed: ΔHmix | -5.46 kJ/mol-atom | 0 | γ alloy: Co 0.5, Cr 0.5 | DFT | [1] Liu 2016 | Table 7, p. 41, row 11 report | |
| Enthalpy of mixing printed: ΔHmix | -0.9 kJ/mol-atom | 0 | γ alloy: Co 0.75, Cr 0.25 | DFT | [1] Liu 2016 | Table 7, p. 41, row 10 report | |
| Enthalpy of mixing printed: ΔHmix | -6.86 kJ/mol-atom | 0 | γ alloy: Co 0.25, Cr 0.75 | DFT | [1] Liu 2016 | Table 7, p. 41, row 12 report | |
| Enthalpy of mixing printed: ΔHmix | -10.48 kJ/mol-atom | 0 | γ’ alloy: Co 0.25, Cr 0.75 | DFT | [1] Liu 2016 | Table 9, p. 43, row 6 report | |
| Enthalpy of mixing printed: ΔHmix | -5.04 kJ/mol-atom | 0 | γ’ alloy: Co 0.75, Cr 0.25 | DFT | [1] Liu 2016 | Table 9, p. 43, row 9 report |
Activity / EMF / Gibbs energy (2)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| gibbs energy contribution printed: magG Co | -9.917 kJ/mol | 0.1 | HCP | model | [5] Wang 2019 cites Fernandez 1987 doi | p. 4 report | Using the current CALPHAD description of Co [50], the magnetic contribution HCP to the total Gibbs energy of the HCP Co, magG Co , is -8.531 kJ/mol at 0 K and -6.417 kJ/mol at 298.25 K compared to -9.917 kJ/mol at 0.1 K if the experimental magnetic moment is used. |
| gibbs energy contribution printed: magG Co | -6.417 kJ/mol | 298.25 | HCP | model | [5] Wang 2019 cites Fernandez 1987 doi | p. 4 report | Using the current CALPHAD description of Co [50], the magnetic contribution HCP to the total Gibbs energy of the HCP Co, magG Co , is -8.531 kJ/mol at 0 K and -6.417 kJ/mol at 298.25 K compared to -9.917 kJ/mol at 0.1 K if the experimental magnetic moment is used. |
Crystal structure (3)
| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---|---|---|---|---|---|---|
| Molar volume printed: V0 | 11.6 Å3/atom | 298.15 | B2 CoCr alloy: Co 0.5, Cr 0.5 | DFT | [1] Liu 2016 | Table 2, p. 36, row 13 report | |
| Molar volume printed: V0 | 10.56 Å3/atom | 298.15 | γ'-L12 Co3Cr alloy: Co 0.75, Cr 0.25 | DFT | [1] Liu 2016 | Table 2, p. 36, row 29 report | |
| Molar volume printed: V0 | 11.367 Å3/atom | 298.15 | γ'-L12 Cr3Co alloy: Co 0.25, Cr 0.75 | DFT | [1] Liu 2016 | Table 2, p. 36, row 30 report |
Sources
Reporting papers the values were read from (a value cited from another work names that work in its row).
- 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
- Xuan L. Liu, Thomas Gheno, Bonnie B. Lindahl, Greta Lindwall, Brian Gleeson, Zi-Kui Liu, First-Principles Calculations, Experimental Study, and Thermodynamic Modeling of the Al-Co-Cr System, PLoS ONE 10, e0121386 (2015). doi:10.1371/journal.pone.0121386
- Katsunari Oikawa, Gao-Wu Qin, Tamio Ikeshoji, Ryosuke Kainuma, Kiyohito Ishida, Direct evidence of magnetically induced phase separation in the fcc phase and thermodynamic calculations of phase equilibria of the Co–Cr system, Acta Materialia 50, 2223-2232 (2002). doi:10.1016/s1359-6454(01)00433-5
- Guillaume Bracq, Jean-Claude Crivello, Mathilde Laurent-Brocq, Jean-Marc Joubert, Ivan Guillot, What is the Enthalpy Contribution to the Stabilization of the Co–Cr–Fe–Mn–Ni Faced-centered Cubic Solid Solution?, J. Phase Equilib. Diffus. 42, 561-570 (2021). doi:10.1007/s11669-021-00922-9
- Peisheng Wang, Matthew C. Peters, Ursula R. Kattner, Kamal Choudhary, Gregory B. Olson, Thermodynamic analysis of the topologically close packed σ phase in the Co Cr system, Intermetallics 105, 13-20 (2019). doi:10.1016/j.intermet.2018.11.004