Co–Cr phases

9 phases (tier A 5, liquid 1, needs_review 2, unresolved_no_candidates 1); 7 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · Co–Cr system page · Markdown · field reference

Phases of the Co–Cr system (9)
Phase	Structure	Basis	Stability (calculated)	TDB models
BCC_A2 phase:co-cr:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 10 of 10 calculated diagram(s): 300–3999.98 K, x(Cr) 0.46–1	11
SIGMA_D8B phase:co-cr:d8b-sigma	sigma-CrFe · D8_b · tP30 · P4_2/mnm (136)	tier A: standard phase name	stable in 7 of 7 calculated diagram(s): 300–1592.58 K, x(Cr) 0–0.68414	8
DIS_SIG phase:co-cr:dis-sig		unresolved_no_candidates	not stable in 2 calculated diagram(s)	2
DIS_SIGMA phase:co-cr:dis-sigma		needs_review	no calculated diagram	1
FCC_A1 phase:co-cr:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 10 of 10 calculated diagram(s): 370–1767.99 K, x(Cr) 0–0.44766	11
HCP_A3 phase:co-cr:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 10 of 10 calculated diagram(s): 300–1280.15 K, x(Cr) 0–0.43748	11
LIQUID phase:co-cr:liquid	liquid	liquid	stable in 10 of 10 calculated diagram(s): 1655.6–4000 K, x(Cr) 0–1	11
SIGMA_OLD phase:co-cr:old-sigma	sigma-CrFe · D8_b · tP30 · P4_2/mnm (136)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 300–1556.48 K, x(Cr) 0.53578–0.73333	4
SIGMA_ORD phase:co-cr:ord-sigma		needs_review	stable in 1 of 1 calculated diagram(s): 364.93–1918.26 K, x(Cr) 0.13–0.80137	1

BCC_A2 (Co–Cr)

Id: phase:co-cr:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 10 of 10 calculated diagram(s): 300–3999.98 K, x(Cr) 0.46–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (12): corpus: corpus:phase:co-cr:bcc-a2
tdb: tdb:CoCr-01Oik.tdb:BCC_A2, tdb:CoCr-02Oik.tdb:BCC_A2, tdb:CoCr-16Li.tdb:BCC_A2, tdb:CoCr-18Cac.tdb:BCC_A2, tdb:CoCr-19Wan.tdb:BCC_A2, tdb:CoCr-20Ost.tdb:BCC_A2, tdb:CoCr-20Zha.tdb:BCC_A2, tdb:CoCr-23Sha.tdb:BCC_A2, tdb:CoCr-24Per.tdb:BCC_A2, tdb:CoCr-88Jan.tdb:BCC_A2, tdb:CoCr-97Kus-LB.tdb:BCC_A2

TDB models of BCC_A2 (11): PHASE and CONSTITUENT statements as written

CoCr-01Oik.tdb: BCC_A2, type code %B, sha256 57d2f2a8706dc239…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : CO CR% : VA : !

CoCr-02Oik.tdb: BCC_A2, type code %B, sha256 0dd550c23273e5cf…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : CO CR% : VA : !

CoCr-16Li.tdb: BCC_A2, type code %B, sha256 07e93d5b48a2de77…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : CO CR% : VA : !

CoCr-18Cac.tdb: BCC_A2, type code %B, sha256 d43dc8f1217be4a8…

37: PHASE BCC_A2 %B 2 1 3 !
38: CONST BCC_A2 : CO CR% : VA : !

CoCr-19Wan.tdb: BCC_A2, type code %B, sha256 4875fa24c4f980cd…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : CO CR% VA : VA : !

CoCr-20Ost.tdb: BCC_A2, type code %B, sha256 c1b476f7f08744ab…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : CO CR% VA : VA : !

CoCr-20Zha.tdb: BCC_A2, type code %B, sha256 e8c86411f86b2725…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : CO CR% : VA : !

CoCr-23Sha.tdb: BCC_A2, type code %B, sha256 499be26cf3d8b68c…

42: PHASE BCC_A2 %B 2 1 3 !
43: CONST BCC_A2 : CO CR% : VA : !

CoCr-24Per.tdb: BCC_A2, type code %B, sha256 b109b5d55d4c95c0…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : CO CR% : VA : !

CoCr-88Jan.tdb: BCC_A2, type code %B, sha256 c6d50d8fb6f4b329…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : CO CR% : VA : !

CoCr-97Kus-LB.tdb: BCC_A2, type code %B, sha256 1b1278fbadb50a2d…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : CO CR% : VA : !

Example references (10 of 10; assessments first):

doi:10.1007/s11669-023-01079-3 Júlio César Pereira dos Santos, Sean Griesemer, Nathalie Dupin, Ursula R. Kattner, Chuan Liu, Daniela Ivanova et al., Applying the Effective Bond Energy Formalism (EBEF) to Describe the Sigma (σ) Phase in the Co-Cr-Ni-Re System, J. Phase Equilib. Diffus. 45, 330-357 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2015.10.013 Z. Li, H. Mao, P.A. Korzhavyi, M. Selleby, Calphad, 52, 1-7(2016).
assessment that models this phase
doi:10.1016/j.calphad.2020.101996 N. Zhao, W. Liu, J.-J. Wang, X.-G. Lu, L. Zhang, Calphad, 71, 101996(2020).
assessment that models this phase
doi:10.1016/j.calphad.2022.102526 G. Shang, C.-H. Xia, Z.-Z. Liu, X.-G. Lu, Calphad, 80, 102526(2023).
assessment that models this phase
doi:10.1016/j.intermet.2018.11.004 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).
assessment that models this phase
doi:10.1016/j.jallcom.2017.09.327 G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).
assessment that models this phase
doi:10.1016/j.jallcom.2020.156122 Marlena Ostrowska, Gabriele Cacciamani, Thermodynamic modelling of the σ and μ phases in several ternary systems containing Co, Cr, Fe, Mo, Re and W, Journal of Alloys and Compounds 845, 156122 (2020).
assessment that models this phase
doi:10.1016/S0304-8853(00)00520-5 K. Oikawa, G.W. Qin, T. Ikeshoji, O. Kitakami, Y. Shimada, K. Ishida, K. Fukamichi, J. Magn. Magn. Mater., 236, 220-33(2001).
assessment that models this phase
doi:10.1016/S0364-5916(97)00033-3 A. Kusoffsky, B. Jansson, Calphad, 21, 321-33(1997).
assessment that models this phase
doi:10.1016/S1359-6454(01)00433-5 K. Oikawa, G.-W. Qin, T. Ikeshoji, R. Kainuma, K. Ishida, Acta Mater., 50, 2223-32(2002).
assessment that models this phase

SIGMA_D8B (Co–Cr)

Id: phase:co-cr:d8b-sigma; status assigned
Structure: sigma-CrFe · D8_b · tP30 · P4_2/mnm (136); type st:d8-b-sigma-crfe-tp30; tier A: standard phase name; confidence high
Caveat: CoCr-16Li.tdb: ordered phase with disordered part DIS_SIGMA (order/disorder model)
Caveat: partitioned order/disorder model in CoCr-16Li.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CoCr-18Cac.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CoCr-19Wan.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CoCr-20Ost.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CoCr-20Zha.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CoCr-23Sha.tdb also describes the disordered state
Caveat: partitioned order/disorder model in CoCr-24Per.tdb also describes the disordered state
Stability: stable in 7 of 7 calculated diagram(s): 300–1592.58 K, x(Cr) 0–0.68414
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (9): corpus: corpus:phase:co-cr:d8b-sigma
tdb: tdb:CoCr-16Li.tdb:SIGMA_D8B, tdb:CoCr-18Cac.tdb:SIGMA_D8B, tdb:CoCr-19Wan.tdb:SIGMA_D8B, tdb:CoCr-20Ost.tdb:SIGMA_D8B, tdb:CoCr-20Zha.tdb:SIGMA_D8B, tdb:CoCr-23Sha.tdb:SIGMA_D8B, tdb:CoCr-24Per.tdb:SIGMA_D8B, tdb:CoCr-97Kus-LB.tdb:SIGMA_D8B

TDB models of SIGMA_D8B (8): PHASE and CONSTITUENT statements as written

CoCr-16Li.tdb: SIGMA_D8B, type code %SP, sha256 07e93d5b48a2de77…

47: PHASE SIGMA_D8B %SP 5 2 4 8 8 8 !
48: CONST SIGMA_D8B : CO CR : CO CR : CO CR : CO CR : CO CR : !

CoCr-18Cac.tdb: SIGMA_D8B, type code %, sha256 d43dc8f1217be4a8…

47: PHASE SIGMA_D8B % 3 10 4 16 !
48: CONST SIGMA_D8B : CO% CR : CO CR% : CO CR : !

CoCr-19Wan.tdb: SIGMA_D8B, type code %A, sha256 4875fa24c4f980cd…

43: PHASE SIGMA_D8B %A 3 10 4 16 !
44: CONST SIGMA_D8B : CO% CR : CO CR% : CO CR : !

CoCr-20Ost.tdb: SIGMA_D8B, type code %, sha256 c1b476f7f08744ab…

42: PHASE SIGMA_D8B % 3 10 4 16 !
43: CONST SIGMA_D8B : CO% CR : CO CR% : CO CR : !

CoCr-20Zha.tdb: SIGMA_D8B, type code %A, sha256 e8c86411f86b2725…

42: PHASE SIGMA_D8B %A 3 10 4 16 !
43: CONST SIGMA_D8B : CO% CR : CO CR% : CO CR : !

CoCr-23Sha.tdb: SIGMA_D8B, type code %A, sha256 499be26cf3d8b68c…

52: PHASE SIGMA_D8B %A 3 10 4 16 !
53: CONST SIGMA_D8B : CO% CR : CO CR% : CO CR : !

CoCr-24Per.tdb: SIGMA_D8B, type code %AS, sha256 b109b5d55d4c95c0…

49: PHASE SIGMA_D8B %AS 5 2 4 8 8 8 !
50: CONST SIGMA_D8B : CO CR : CO CR : CO CR : CO CR : CO CR : !

CoCr-97Kus-LB.tdb: SIGMA_D8B, type code %, sha256 1b1278fbadb50a2d…

49: PHASE SIGMA_D8B % 3 10 4 16 !
50: CONST SIGMA_D8B : CO : CR : CO CR : !

Example references (8 of 8; assessments first):

doi:10.1007/s11669-023-01079-3 Júlio César Pereira dos Santos, Sean Griesemer, Nathalie Dupin, Ursula R. Kattner, Chuan Liu, Daniela Ivanova et al., Applying the Effective Bond Energy Formalism (EBEF) to Describe the Sigma (σ) Phase in the Co-Cr-Ni-Re System, J. Phase Equilib. Diffus. 45, 330-357 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2015.10.013 Z. Li, H. Mao, P.A. Korzhavyi, M. Selleby, Calphad, 52, 1-7(2016).
assessment that models this phase
doi:10.1016/j.calphad.2020.101996 N. Zhao, W. Liu, J.-J. Wang, X.-G. Lu, L. Zhang, Calphad, 71, 101996(2020).
assessment that models this phase
doi:10.1016/j.calphad.2022.102526 G. Shang, C.-H. Xia, Z.-Z. Liu, X.-G. Lu, Calphad, 80, 102526(2023).
assessment that models this phase
doi:10.1016/j.intermet.2018.11.004 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).
assessment that models this phase
doi:10.1016/j.jallcom.2017.09.327 G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).
assessment that models this phase
doi:10.1016/j.jallcom.2020.156122 Marlena Ostrowska, Gabriele Cacciamani, Thermodynamic modelling of the σ and μ phases in several ternary systems containing Co, Cr, Fe, Mo, Re and W, Journal of Alloys and Compounds 845, 156122 (2020).
assessment that models this phase
doi:10.1016/S0364-5916(97)00033-3 A. Kusoffsky, B. Jansson, Calphad, 21, 321-33(1997).
assessment that models this phase

DIS_SIG (Co–Cr)

Id: phase:co-cr:dis-sig; status unresolved_no_candidates
No structure assigned. Why: name_has_descriptive_tokens:DIS,SIG; no_structure_token
Stability: not stable in 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:co-cr:dis-sig
tdb: tdb:CoCr-19Wan.tdb:DIS_SIG, tdb:CoCr-24Per.tdb:DIS_SIG

TDB models of DIS_SIG (2): PHASE and CONSTITUENT statements as written

CoCr-19Wan.tdb: DIS_SIG, type code %A, sha256 4875fa24c4f980cd…

48: PHASE DIS_SIG %A 1 1 !
49: CONST DIS_SIG : CO CR : !

CoCr-24Per.tdb: DIS_SIG, type code %A, sha256 b109b5d55d4c95c0…

44: PHASE DIS_SIG %A 1 1 !
45: CONST DIS_SIG : CO CR : !

Example references (2 of 2; assessments first):

doi:10.1007/s11669-023-01079-3 Júlio César Pereira dos Santos, Sean Griesemer, Nathalie Dupin, Ursula R. Kattner, Chuan Liu, Daniela Ivanova et al., Applying the Effective Bond Energy Formalism (EBEF) to Describe the Sigma (σ) Phase in the Co-Cr-Ni-Re System, J. Phase Equilib. Diffus. 45, 330-357 (2024).
assessment that models this phase
doi:10.1016/j.intermet.2018.11.004 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).
assessment that models this phase

DIS_SIGMA (Co–Cr)

Id: phase:co-cr:dis-sigma; status needs_review
No structure assigned. Why: unrecognised_name_tokens:DIS
Candidate (name_token): sigma-CrFe · D8_b · tP30 · P4_2/mnm (136) — Strukturbericht/word 'D8B' in the TDB name
Candidate (tdb_comment): CrFe · tP30 · P4_2/mnm — CoCr-16Li.tdb: 'Prototype CrFe (tP30, P4_2/mnm), Disordered contribution'
Stability: no calculated diagram
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:co-cr:dis-sigma
tdb: tdb:CoCr-16Li.tdb:DIS_SIGMA

TDB models of DIS_SIGMA (1): PHASE and CONSTITUENT statements as written

CoCr-16Li.tdb: DIS_SIGMA, type code %, sha256 07e93d5b48a2de77…

42: PHASE DIS_SIGMA % 1 1 !
43: CONST DIS_SIGMA : CO CR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2015.10.013 Z. Li, H. Mao, P.A. Korzhavyi, M. Selleby, Calphad, 52, 1-7(2016).
assessment that models this phase

FCC_A1 (Co–Cr)

Id: phase:co-cr:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: stable in 10 of 10 calculated diagram(s): 370–1767.99 K, x(Cr) 0–0.44766
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (12): corpus: corpus:phase:co-cr:fcc-a1
tdb: tdb:CoCr-01Oik.tdb:FCC_A1, tdb:CoCr-02Oik.tdb:FCC_A1, tdb:CoCr-16Li.tdb:FCC_A1, tdb:CoCr-18Cac.tdb:FCC_A1, tdb:CoCr-19Wan.tdb:FCC_A1, tdb:CoCr-20Ost.tdb:FCC_A1, tdb:CoCr-20Zha.tdb:FCC_A1, tdb:CoCr-23Sha.tdb:FCC_A1, tdb:CoCr-24Per.tdb:FCC_A1, tdb:CoCr-88Jan.tdb:FCC_A1, tdb:CoCr-97Kus-LB.tdb:FCC_A1

TDB models of FCC_A1 (11): PHASE and CONSTITUENT statements as written

CoCr-01Oik.tdb: FCC_A1, type code %A, sha256 57d2f2a8706dc239…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : CO% CR : VA : !

CoCr-02Oik.tdb: FCC_A1, type code %A, sha256 0dd550c23273e5cf…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : CO% CR : VA : !

CoCr-16Li.tdb: FCC_A1, type code %A, sha256 07e93d5b48a2de77…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : CO% CR : VA : !

CoCr-18Cac.tdb: FCC_A1, type code %A, sha256 d43dc8f1217be4a8…

32: PHASE FCC_A1 %A 2 1 1 !
33: CONST FCC_A1 : CO% CR : VA : !

CoCr-19Wan.tdb: FCC_A1, type code %A, sha256 4875fa24c4f980cd…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : CO% CR : VA : !

CoCr-20Ost.tdb: FCC_A1, type code %A, sha256 c1b476f7f08744ab…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : CO% CR : VA : !

CoCr-20Zha.tdb: FCC_A1, type code %A, sha256 e8c86411f86b2725…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : CO% CR : VA : !

CoCr-23Sha.tdb: FCC_A1, type code %A, sha256 499be26cf3d8b68c…

37: PHASE FCC_A1 %A 2 1 1 !
38: CONST FCC_A1 : CO% CR : VA : !

CoCr-24Per.tdb: FCC_A1, type code %A, sha256 b109b5d55d4c95c0…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : CO% CR : VA : !

CoCr-88Jan.tdb: FCC_A1, type code %A, sha256 c6d50d8fb6f4b329…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : CO% CR : VA : !

CoCr-97Kus-LB.tdb: FCC_A1, type code %A, sha256 1b1278fbadb50a2d…

34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : CO% CR : VA : !

Example references (10 of 10; assessments first):

doi:10.1007/s11669-023-01079-3 Júlio César Pereira dos Santos, Sean Griesemer, Nathalie Dupin, Ursula R. Kattner, Chuan Liu, Daniela Ivanova et al., Applying the Effective Bond Energy Formalism (EBEF) to Describe the Sigma (σ) Phase in the Co-Cr-Ni-Re System, J. Phase Equilib. Diffus. 45, 330-357 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2015.10.013 Z. Li, H. Mao, P.A. Korzhavyi, M. Selleby, Calphad, 52, 1-7(2016).
assessment that models this phase
doi:10.1016/j.calphad.2020.101996 N. Zhao, W. Liu, J.-J. Wang, X.-G. Lu, L. Zhang, Calphad, 71, 101996(2020).
assessment that models this phase
doi:10.1016/j.calphad.2022.102526 G. Shang, C.-H. Xia, Z.-Z. Liu, X.-G. Lu, Calphad, 80, 102526(2023).
assessment that models this phase
doi:10.1016/j.intermet.2018.11.004 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).
assessment that models this phase
doi:10.1016/j.jallcom.2017.09.327 G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).
assessment that models this phase
doi:10.1016/j.jallcom.2020.156122 Marlena Ostrowska, Gabriele Cacciamani, Thermodynamic modelling of the σ and μ phases in several ternary systems containing Co, Cr, Fe, Mo, Re and W, Journal of Alloys and Compounds 845, 156122 (2020).
assessment that models this phase
doi:10.1016/S0304-8853(00)00520-5 K. Oikawa, G.W. Qin, T. Ikeshoji, O. Kitakami, Y. Shimada, K. Ishida, K. Fukamichi, J. Magn. Magn. Mater., 236, 220-33(2001).
assessment that models this phase
doi:10.1016/S0364-5916(97)00033-3 A. Kusoffsky, B. Jansson, Calphad, 21, 321-33(1997).
assessment that models this phase
doi:10.1016/S1359-6454(01)00433-5 K. Oikawa, G.-W. Qin, T. Ikeshoji, R. Kainuma, K. Ishida, Acta Mater., 50, 2223-32(2002).
assessment that models this phase

HCP_A3 (Co–Cr)

Id: phase:co-cr:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: stable in 10 of 10 calculated diagram(s): 300–1280.15 K, x(Cr) 0–0.43748
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (12): corpus: corpus:phase:co-cr:hcp-a3
tdb: tdb:CoCr-01Oik.tdb:HCP_A3, tdb:CoCr-02Oik.tdb:HCP_A3, tdb:CoCr-16Li.tdb:HCP_A3, tdb:CoCr-18Cac.tdb:HCP_A3, tdb:CoCr-19Wan.tdb:HCP_A3, tdb:CoCr-20Ost.tdb:HCP_A3, tdb:CoCr-20Zha.tdb:HCP_A3, tdb:CoCr-23Sha.tdb:HCP_A3, tdb:CoCr-24Per.tdb:HCP_A3, tdb:CoCr-88Jan.tdb:HCP_A3, tdb:CoCr-97Kus-LB.tdb:HCP_A3

TDB models of HCP_A3 (11): PHASE and CONSTITUENT statements as written

CoCr-01Oik.tdb: HCP_A3, type code %A, sha256 57d2f2a8706dc239…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : CO% CR : VA : !

CoCr-02Oik.tdb: HCP_A3, type code %A, sha256 0dd550c23273e5cf…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : CO% CR : VA : !

CoCr-16Li.tdb: HCP_A3, type code %A, sha256 07e93d5b48a2de77…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : CO% CR : VA : !

CoCr-18Cac.tdb: HCP_A3, type code %A, sha256 d43dc8f1217be4a8…

42: PHASE HCP_A3 %A 2 1 0.5 !
43: CONST HCP_A3 : CO% CR : VA : !

CoCr-19Wan.tdb: HCP_A3, type code %A, sha256 4875fa24c4f980cd…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : CO% CR : VA : !

CoCr-20Ost.tdb: HCP_A3, type code %A, sha256 c1b476f7f08744ab…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : CO% CR : VA : !

CoCr-20Zha.tdb: HCP_A3, type code %A, sha256 e8c86411f86b2725…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : CO% CR : VA : !

CoCr-23Sha.tdb: HCP_A3, type code %A, sha256 499be26cf3d8b68c…

47: PHASE HCP_A3 %A 2 1 0.5 !
48: CONST HCP_A3 : CO% CR : VA : !

CoCr-24Per.tdb: HCP_A3, type code %A, sha256 b109b5d55d4c95c0…

39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : CO% CR : VA : !

CoCr-88Jan.tdb: HCP_A3, type code %A, sha256 c6d50d8fb6f4b329…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : CO% CR : VA : !

CoCr-97Kus-LB.tdb: HCP_A3, type code %A, sha256 1b1278fbadb50a2d…

44: PHASE HCP_A3 %A 2 1 0.5 !
45: CONST HCP_A3 : CO% CR : VA : !

Example references (10 of 10; assessments first):

doi:10.1007/s11669-023-01079-3 Júlio César Pereira dos Santos, Sean Griesemer, Nathalie Dupin, Ursula R. Kattner, Chuan Liu, Daniela Ivanova et al., Applying the Effective Bond Energy Formalism (EBEF) to Describe the Sigma (σ) Phase in the Co-Cr-Ni-Re System, J. Phase Equilib. Diffus. 45, 330-357 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2015.10.013 Z. Li, H. Mao, P.A. Korzhavyi, M. Selleby, Calphad, 52, 1-7(2016).
assessment that models this phase
doi:10.1016/j.calphad.2020.101996 N. Zhao, W. Liu, J.-J. Wang, X.-G. Lu, L. Zhang, Calphad, 71, 101996(2020).
assessment that models this phase
doi:10.1016/j.calphad.2022.102526 G. Shang, C.-H. Xia, Z.-Z. Liu, X.-G. Lu, Calphad, 80, 102526(2023).
assessment that models this phase
doi:10.1016/j.intermet.2018.11.004 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).
assessment that models this phase
doi:10.1016/j.jallcom.2017.09.327 G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).
assessment that models this phase
doi:10.1016/j.jallcom.2020.156122 Marlena Ostrowska, Gabriele Cacciamani, Thermodynamic modelling of the σ and μ phases in several ternary systems containing Co, Cr, Fe, Mo, Re and W, Journal of Alloys and Compounds 845, 156122 (2020).
assessment that models this phase
doi:10.1016/S0304-8853(00)00520-5 K. Oikawa, G.W. Qin, T. Ikeshoji, O. Kitakami, Y. Shimada, K. Ishida, K. Fukamichi, J. Magn. Magn. Mater., 236, 220-33(2001).
assessment that models this phase
doi:10.1016/S0364-5916(97)00033-3 A. Kusoffsky, B. Jansson, Calphad, 21, 321-33(1997).
assessment that models this phase
doi:10.1016/S1359-6454(01)00433-5 K. Oikawa, G.-W. Qin, T. Ikeshoji, R. Kainuma, K. Ishida, Acta Mater., 50, 2223-32(2002).
assessment that models this phase

LIQUID (Co–Cr)

Id: phase:co-cr:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 10 of 10 calculated diagram(s): 1655.6–4000 K, x(Cr) 0–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (12): corpus: corpus:phase:co-cr:liquid
tdb: tdb:CoCr-01Oik.tdb:LIQUID, tdb:CoCr-02Oik.tdb:LIQUID, tdb:CoCr-16Li.tdb:LIQUID, tdb:CoCr-18Cac.tdb:LIQUID, tdb:CoCr-19Wan.tdb:LIQUID, tdb:CoCr-20Ost.tdb:LIQUID, tdb:CoCr-20Zha.tdb:LIQUID, tdb:CoCr-23Sha.tdb:LIQUID, tdb:CoCr-24Per.tdb:LIQUID, tdb:CoCr-88Jan.tdb:LIQUID, tdb:CoCr-97Kus-LB.tdb:LIQUID

TDB models of LIQUID (11): PHASE and CONSTITUENT statements as written

CoCr-01Oik.tdb: LIQUID, type code %, sha256 57d2f2a8706dc239…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : CO CR : !

CoCr-02Oik.tdb: LIQUID, type code %, sha256 0dd550c23273e5cf…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : CO CR : !

CoCr-16Li.tdb: LIQUID, type code %, sha256 07e93d5b48a2de77…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : CO CR : !

CoCr-18Cac.tdb: LIQUID, type code %, sha256 d43dc8f1217be4a8…

27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : CO CR : !

CoCr-19Wan.tdb: LIQUID, type code %, sha256 4875fa24c4f980cd…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : CO CR : !

CoCr-20Ost.tdb: LIQUID, type code %, sha256 c1b476f7f08744ab…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : CO CR : !

CoCr-20Zha.tdb: LIQUID, type code %, sha256 e8c86411f86b2725…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : CO CR : !

CoCr-23Sha.tdb: LIQUID, type code %, sha256 499be26cf3d8b68c…

32: PHASE LIQUID:L % 1 1 !
33: CONST LIQUID:L : CO CR : !

CoCr-24Per.tdb: LIQUID, type code %, sha256 b109b5d55d4c95c0…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : CO CR : !

CoCr-88Jan.tdb: LIQUID, type code %, sha256 c6d50d8fb6f4b329…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : CO CR : !

CoCr-97Kus-LB.tdb: LIQUID, type code %, sha256 1b1278fbadb50a2d…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : CO CR : !

Example references (10 of 10; assessments first):

doi:10.1007/s11669-023-01079-3 Júlio César Pereira dos Santos, Sean Griesemer, Nathalie Dupin, Ursula R. Kattner, Chuan Liu, Daniela Ivanova et al., Applying the Effective Bond Energy Formalism (EBEF) to Describe the Sigma (σ) Phase in the Co-Cr-Ni-Re System, J. Phase Equilib. Diffus. 45, 330-357 (2024).
assessment that models this phase
doi:10.1016/j.calphad.2015.10.013 Z. Li, H. Mao, P.A. Korzhavyi, M. Selleby, Calphad, 52, 1-7(2016).
assessment that models this phase
doi:10.1016/j.calphad.2020.101996 N. Zhao, W. Liu, J.-J. Wang, X.-G. Lu, L. Zhang, Calphad, 71, 101996(2020).
assessment that models this phase
doi:10.1016/j.calphad.2022.102526 G. Shang, C.-H. Xia, Z.-Z. Liu, X.-G. Lu, Calphad, 80, 102526(2023).
assessment that models this phase
doi:10.1016/j.intermet.2018.11.004 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).
assessment that models this phase
doi:10.1016/j.jallcom.2017.09.327 G. Cacciamani, G. Roncallo, Y. Wang, E. Vacchieri, A. Costa, J. Alloys Compd., 730, 291-310(2018).
assessment that models this phase
doi:10.1016/j.jallcom.2020.156122 Marlena Ostrowska, Gabriele Cacciamani, Thermodynamic modelling of the σ and μ phases in several ternary systems containing Co, Cr, Fe, Mo, Re and W, Journal of Alloys and Compounds 845, 156122 (2020).
assessment that models this phase
doi:10.1016/S0304-8853(00)00520-5 K. Oikawa, G.W. Qin, T. Ikeshoji, O. Kitakami, Y. Shimada, K. Ishida, K. Fukamichi, J. Magn. Magn. Mater., 236, 220-33(2001).
assessment that models this phase
doi:10.1016/S0364-5916(97)00033-3 A. Kusoffsky, B. Jansson, Calphad, 21, 321-33(1997).
assessment that models this phase
doi:10.1016/S1359-6454(01)00433-5 K. Oikawa, G.-W. Qin, T. Ikeshoji, R. Kainuma, K. Ishida, Acta Mater., 50, 2223-32(2002).
assessment that models this phase

SIGMA_OLD (Co–Cr)

Id: phase:co-cr:old-sigma; status assigned
Structure: sigma-CrFe · D8_b · tP30 · P4_2/mnm (136); type st:d8-b-sigma-crfe-tp30; tier A: standard phase name; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 300–1556.48 K, x(Cr) 0.53578–0.73333
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:co-cr:old-sigma
tdb: tdb:CoCr-01Oik.tdb:SIGMA_OLD, tdb:CoCr-02Oik.tdb:SIGMA_OLD, tdb:CoCr-88Jan.tdb:SIGMA_OLD, tdb:CoCr-97Kus-LB.tdb:SIGMA_OLD

TDB models of SIGMA_OLD (4): PHASE and CONSTITUENT statements as written

CoCr-01Oik.tdb: SIGMA_OLD, type code %, sha256 57d2f2a8706dc239…

41: PHASE SIGMA_OLD % 3 8 4 18 !
42: CONST SIGMA_OLD : CO : CR : CO CR : !

CoCr-02Oik.tdb: SIGMA_OLD, type code %, sha256 0dd550c23273e5cf…

44: PHASE SIGMA_OLD % 3 8 4 18 !
45: CONST SIGMA_OLD : CO : CR : CO CR : !

CoCr-88Jan.tdb: SIGMA_OLD, type code %, sha256 c6d50d8fb6f4b329…

41: PHASE SIGMA_OLD % 3 8 4 18 !
42: CONST SIGMA_OLD : CO : CR : CO CR : !

CoCr-97Kus-LB.tdb: SIGMA_OLD, type code %, sha256 1b1278fbadb50a2d…

55: PHASE SIGMA_OLD % 3 8 4 18 !
56: CONST SIGMA_OLD : CO : CR : CO CR : !

Example references (3 of 3; assessments first):

doi:10.1016/S0304-8853(00)00520-5 K. Oikawa, G.W. Qin, T. Ikeshoji, O. Kitakami, Y. Shimada, K. Ishida, K. Fukamichi, J. Magn. Magn. Mater., 236, 220-33(2001).
assessment that models this phase
doi:10.1016/S0364-5916(97)00033-3 A. Kusoffsky, B. Jansson, Calphad, 21, 321-33(1997).
assessment that models this phase
doi:10.1016/S1359-6454(01)00433-5 K. Oikawa, G.-W. Qin, T. Ikeshoji, R. Kainuma, K. Ishida, Acta Mater., 50, 2223-32(2002).
assessment that models this phase

SIGMA_ORD (Co–Cr)

Id: phase:co-cr:ord-sigma; status needs_review
No structure assigned. Why: unrecognised_name_tokens:ORD
Candidate (dft_oqmd): P63/mmc (194) — on-hull OQMD Co3 Cr1 at x(CR)=0.2500
Candidate (name_token): sigma-CrFe · D8_b · tP30 · P4_2/mnm (136) — Strukturbericht/word 'D8B' in the TDB name
Candidate (tdb_comment): CrFe · tP30 · P4_2/mnm — CoCr-19Wan.tdb: 'Prototype CrFe (tP30, P4_2/mnm)'
Stability: stable in 1 of 1 calculated diagram(s): 364.93–1918.26 K, x(Cr) 0.13–0.80137
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:co-cr:ord-sigma
tdb: tdb:CoCr-19Wan.tdb:SIGMA_ORD

TDB models of SIGMA_ORD (1): PHASE and CONSTITUENT statements as written

CoCr-19Wan.tdb: SIGMA_ORD, type code %AS, sha256 4875fa24c4f980cd…

53: PHASE SIGMA_ORD %AS 3 0.133333 0.333334 0.533333 !
54: CONST SIGMA_ORD : CO% CR : CO CR% : CO CR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.intermet.2018.11.004 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).
assessment that models this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23736065

Also cite 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); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). 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.

@misc{orchid_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  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}
}