Cr–Zn phases

6 phases (tier A 3, tier C 1, liquid 1, needs_review 1); 5 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 · Cr–Zn system page · Markdown · field reference

Phases of the Cr–Zn system (6)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:cr-zn:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–2358.62 K, x(Zn) 0–0.02062	9	3
CRZN13 phase:cr-zn:crzn13		needs_review	stable in 2 of 2 calculated diagram(s): 300–761.42 K, x(Zn) 0.92857–0.92857	7	2
CRZN17 phase:cr-zn:crzn17	Au2.5Cr7.5Zn90 · cF548 · F-43m (216)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–736.52 K, x(Zn) 0.94444–0.94444	16	3
FCC_A1 phase:cr-zn:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 3 calculated diagram(s)	0	3
HCP_A3 phase:cr-zn:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–3998.93 K, x(Zn) 1–1	5	3
LIQUID phase:cr-zn:liquid	liquid	liquid	stable in 3 of 3 calculated diagram(s): 691.46–4000 K, x(Zn) 0–1	22	3

BCC_A2 (Cr–Zn)

Id: phase:cr-zn: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 3 of 3 calculated diagram(s): 300–2358.62 K, x(Zn) 0–0.02062
Literature: 9 values (9 accepted) from 3 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:cr-zn:bcc-a2
paper: paper:10.1007/s11669-003-0006-4:bcc_A2, paper:10.1016/j.jallcom.2010.02.087:(Cr), paper:10.1016/j.jallcom.2010.02.087:β-Cr, paper:sha256-85fd53a1a176b694:bcc-A2
tdb: tdb:CrZn-03Reu-LB.tdb:BCC_A2, tdb:CrZn-10Su.tdb:BCC_A2, tdb:CrZn-98Ans.tdb:BCC_A2

TDB models of BCC_A2 (3): PHASE and CONSTITUENT statements as written

CrZn-03Reu-LB.tdb: BCC_A2, type code %B, sha256 a1b249392f3b86f0…

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

CrZn-10Su.tdb: BCC_A2, type code %B, sha256 132759fcba46e488…

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

CrZn-98Ans.tdb: BCC_A2, type code %B, sha256 1d3d06ce513339db…

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

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2010.02.087 Xuping Su, Ya Liu, Daniel Y.H. Liu, Jean-Claude Tedenac, Fucheng Yin, Jianhua Wang, Experimental investigation and thermodynamic assessment of the Zn–Cr system, Journal of Alloys and Compounds 496, 159-163 (2010).
assessment that models this phase; reports values for this phase
doi:10.1007/s11669-003-0006-4 Guy Reumont, Pierre Perrot, Thermodynamic assessment of the Zinc-Rich part of the Cr-Zn system, JPE 24, 50-54 (2003).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1948-390202 T. Heumann, Z. Metallkd 39 (1948) 45 (in German).
cited as the source of values for this phase

CRZN13 (Cr–Zn)

Id: phase:cr-zn:crzn13; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (literature_printed): (CrZn13) · m** — printed with a label mapped to this phase
Candidate (sgte_mmc2): (CrZn13) — Hallstedt 2025 mmc2 row for CRZN13: CrZn13
Stoichiometry: Cr 0.0714, Zn 0.9286
Stability: stable in 2 of 2 calculated diagram(s): 300–761.42 K, x(Zn) 0.92857–0.92857
Literature: 7 values (7 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cr-zn:crzn13
paper: paper:10.1007/s11669-003-0006-4:CrZn13, paper:sha256-85fd53a1a176b694:CrZn13
tdb: tdb:CrZn-03Reu-LB.tdb:CRZN13, tdb:CrZn-98Ans.tdb:CRZN13

TDB models of CRZN13 (2): PHASE and CONSTITUENT statements as written

CrZn-03Reu-LB.tdb: CRZN13, type code %, sha256 a1b249392f3b86f0…

40: PHASE CRZN13 % 2 1 13 !
41: CONST CRZN13 : CR : ZN : !

CrZn-98Ans.tdb: CRZN13, type code %, sha256 1d3d06ce513339db…

40: PHASE CRZN13 % 2 1 13 !
41: CONST CRZN13 : CR : ZN : !

Example references (1 of 1; assessments first):

doi:10.1007/s11669-003-0006-4 Guy Reumont, Pierre Perrot, Thermodynamic assessment of the Zinc-Rich part of the Cr-Zn system, JPE 24, 50-54 (2003).
assessment that models this phase; reports values for this phase

CRZN17 (Cr–Zn)

Id: phase:cr-zn:crzn17; status assigned
Structure: Au2.5Cr7.5Zn90 · cF548 · F-43m (216); type st:au2-5cr7-5zn90-cf548; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cr 0.0556, Zn 0.9444
Stability: stable in 3 of 3 calculated diagram(s): 300–736.52 K, x(Zn) 0.94444–0.94444
Literature: 16 values (16 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:cr-zn:crzn17
paper: paper:10.1007/s11669-003-0006-4:CrZn17, paper:10.1016/j.jallcom.2010.02.087:CrZn17, paper:sha256-85fd53a1a176b694:CrZn17
tdb: tdb:CrZn-03Reu-LB.tdb:CRZN17, tdb:CrZn-10Su.tdb:CRZN17, tdb:CrZn-98Ans.tdb:CRZN17

TDB models of CRZN17 (3): PHASE and CONSTITUENT statements as written

CrZn-03Reu-LB.tdb: CRZN17, type code %, sha256 a1b249392f3b86f0…

45: PHASE CRZN17 % 2 1 17 !
46: CONST CRZN17 : CR : ZN : !

CrZn-10Su.tdb: CRZN17, type code %, sha256 132759fcba46e488…

42: PHASE CRZN17 % 2 1 17 !
43: CONST CRZN17 : CR : ZN : !

CrZn-98Ans.tdb: CRZN17, type code %, sha256 1d3d06ce513339db…

45: PHASE CRZN17 % 2 1 17 !
46: CONST CRZN17 : CR : ZN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.jallcom.2010.02.087 Xuping Su, Ya Liu, Daniel Y.H. Liu, Jean-Claude Tedenac, Fucheng Yin, Jianhua Wang, Experimental investigation and thermodynamic assessment of the Zn–Cr system, Journal of Alloys and Compounds 496, 159-163 (2010).
assessment that models this phase; reports values for this phase
doi:10.1007/s11669-003-0006-4 Guy Reumont, Pierre Perrot, Thermodynamic assessment of the Zinc-Rich part of the Cr-Zn system, JPE 24, 50-54 (2003).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1948-390202 T. Heumann, Z. Metallkd 39 (1948) 45 (in German).
cited as the source of values for this phase

FCC_A1 (Cr–Zn)

Id: phase:cr-zn:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: not stable in 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cr-zn:fcc-a1
tdb: tdb:CrZn-03Reu-LB.tdb:FCC_A1, tdb:CrZn-10Su.tdb:FCC_A1, tdb:CrZn-98Ans.tdb:FCC_A1

TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written

CrZn-03Reu-LB.tdb: FCC_A1, type code %A, sha256 a1b249392f3b86f0…

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

CrZn-10Su.tdb: FCC_A1, type code %A, sha256 132759fcba46e488…

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

CrZn-98Ans.tdb: FCC_A1, type code %A, sha256 1d3d06ce513339db…

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

Example references (2 of 2; assessments first):

doi:10.1007/s11669-003-0006-4 Guy Reumont, Pierre Perrot, Thermodynamic assessment of the Zinc-Rich part of the Cr-Zn system, JPE 24, 50-54 (2003).
assessment that models this phase
doi:10.1016/j.jallcom.2010.02.087 Xuping Su, Ya Liu, Daniel Y.H. Liu, Jean-Claude Tedenac, Fucheng Yin, Jianhua Wang, Experimental investigation and thermodynamic assessment of the Zn–Cr system, Journal of Alloys and Compounds 496, 159-163 (2010).
assessment that models this phase

HCP_A3 (Cr–Zn)

Id: phase:cr-zn: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 3 of 3 calculated diagram(s): 300–3998.93 K, x(Zn) 1–1
Literature: 5 values (5 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:cr-zn:hcp-a3
paper: paper:10.1007/s11669-003-0006-4:hcp_A3, paper:10.1016/j.jallcom.2010.02.087:(hcp(Zn)), paper:sha256-85fd53a1a176b694:hcp-Zn
tdb: tdb:CrZn-03Reu-LB.tdb:HCP_A3, tdb:CrZn-10Su.tdb:HCP_A3, tdb:CrZn-98Ans.tdb:HCP_A3

TDB models of HCP_A3 (3): PHASE and CONSTITUENT statements as written

CrZn-03Reu-LB.tdb: HCP_A3, type code %A, sha256 a1b249392f3b86f0…

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

CrZn-10Su.tdb: HCP_A3, type code %A, sha256 132759fcba46e488…

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

CrZn-98Ans.tdb: HCP_A3, type code %A, sha256 1d3d06ce513339db…

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

Example references (3 of 3; assessments first):

doi:10.1007/s11669-003-0006-4 Guy Reumont, Pierre Perrot, Thermodynamic assessment of the Zinc-Rich part of the Cr-Zn system, JPE 24, 50-54 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.02.087 Xuping Su, Ya Liu, Daniel Y.H. Liu, Jean-Claude Tedenac, Fucheng Yin, Jianhua Wang, Experimental investigation and thermodynamic assessment of the Zn–Cr system, Journal of Alloys and Compounds 496, 159-163 (2010).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1948-390202 T. Heumann, Z. Metallkd 39 (1948) 45 (in German).
cited as the source of values for this phase

LIQUID (Cr–Zn)

Id: phase:cr-zn:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 691.46–4000 K, x(Zn) 0–1
Literature: 22 values (22 accepted) from 3 papers
Interactive: phase registry entry

Names (9): corpus: corpus:phase:cr-zn:liquid
paper: paper:10.1007/s11669-003-0006-4:L, paper:10.1007/s11669-003-0006-4:liquid, paper:10.1016/j.jallcom.2010.02.087:L, paper:10.1016/j.jallcom.2010.02.087:Liquid, paper:sha256-85fd53a1a176b694:L
tdb: tdb:CrZn-03Reu-LB.tdb:LIQUID, tdb:CrZn-10Su.tdb:LIQUID, tdb:CrZn-98Ans.tdb:LIQUID

TDB models of LIQUID (3): PHASE and CONSTITUENT statements as written

CrZn-03Reu-LB.tdb: LIQUID, type code %, sha256 a1b249392f3b86f0…

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

CrZn-10Su.tdb: LIQUID, type code %, sha256 132759fcba46e488…

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

CrZn-98Ans.tdb: LIQUID, type code %, sha256 1d3d06ce513339db…

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

Example references (3 of 3; assessments first):

doi:10.1007/s11669-003-0006-4 Guy Reumont, Pierre Perrot, Thermodynamic assessment of the Zinc-Rich part of the Cr-Zn system, JPE 24, 50-54 (2003).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.02.087 Xuping Su, Ya Liu, Daniel Y.H. Liu, Jean-Claude Tedenac, Fucheng Yin, Jianhua Wang, Experimental investigation and thermodynamic assessment of the Zn–Cr system, Journal of Alloys and Compounds 496, 159-163 (2010).
assessment that models this phase; reports values for this phase
doi:10.1515/ijmr-1948-390202 T. Heumann, Z. Metallkd 39 (1948) 45 (in German).
cited as the source of values for 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}
}