Mg–Tm phases

7 phases (tier A 6, liquid 1); 6 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 · Mg–Tm system page · Markdown · field reference

Phases of the Mg–Tm system (7)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:mg-tm:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 943.44–1473.23 K, x(Tm) 0.55888–0.75122	6	1
FCC_A1 phase:mg-tm:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
HCP_A3 phase:mg-tm:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2499.24 K, x(Tm) 0–1	6	1
LIQUID phase:mg-tm:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 847.99–2500 K, x(Tm) 0–1	10	1
MG24TM5_A12 phase:mg-tm:mg24tm5-a12	alpha-Mn · A12 · cI58 · I-43m (217)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–863.07 K, x(Tm) 0.17241–0.17241	4	1
MG2TM_C14 phase:mg-tm:mg2tm-c14	MgZn2 · C14 · hP12 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–903.04 K, x(Tm) 0.33333–0.33333	4	1
MGTM_B2 phase:mg-tm:mgtm-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1033.21 K, x(Tm) 0.41162–0.51997	6	1

BCC_A2 (Mg–Tm)

Id: phase:mg-tm: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 1 of 1 calculated diagram(s): 943.44–1473.23 K, x(Tm) 0.55888–0.75122
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mg-tm:bcc-a2
paper: paper:10.1016/j.jallcom.2003.10.033:bcc
tdb: tdb:MgTm-04Du-LB.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

MgTm-04Du-LB.tdb: BCC_A2, type code %B, sha256 8bc07bc38ca74452…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : MG TM : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2003.10.033 Zhenmin Du, Hongying Liu, Gang Ling, Thermodynamic assessment of the Mg–Tm system, Journal of Alloys and Compounds 373, 151-155 (2004).
assessment that models this phase; reports values for this phase
doi:10.1016/0925-8388(94)06023-1 A. Saccone, D. Macciò, S. Delfino, R. Ferro, The interpolated TmMg phase diagram, Journal of Alloys and Compounds 220, 161-166 (1995).
cited as the source of values for this phase

FCC_A1 (Mg–Tm)

Id: phase:mg-tm:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stoichiometry: Mg 1.0000
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:mg-tm:fcc-a1
tdb: tdb:MgTm-04Du-LB.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

MgTm-04Du-LB.tdb: FCC_A1, type code %A, sha256 8bc07bc38ca74452…

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

Example references (1 of 1; assessments first):

doi:10.1016/j.jallcom.2003.10.033 Zhenmin Du, Hongying Liu, Gang Ling, Thermodynamic assessment of the Mg–Tm system, Journal of Alloys and Compounds 373, 151-155 (2004).
assessment that models this phase

HCP_A3 (Mg–Tm)

Id: phase:mg-tm: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 1 of 1 calculated diagram(s): 300–2499.24 K, x(Tm) 0–1
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:mg-tm:hcp-a3
paper: paper:10.1016/j.jallcom.2003.10.033:hcp(Mg), paper:10.1016/j.jallcom.2003.10.033:hcp(Tm)
tdb: tdb:MgTm-04Du-LB.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

MgTm-04Du-LB.tdb: HCP_A3, type code %A, sha256 8bc07bc38ca74452…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : MG TM : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2003.10.033 Zhenmin Du, Hongying Liu, Gang Ling, Thermodynamic assessment of the Mg–Tm system, Journal of Alloys and Compounds 373, 151-155 (2004).
assessment that models this phase; reports values for this phase
doi:10.1016/0925-8388(94)06023-1 A. Saccone, D. Macciò, S. Delfino, R. Ferro, The interpolated TmMg phase diagram, Journal of Alloys and Compounds 220, 161-166 (1995).
cited as the source of values for this phase

LIQUID (Mg–Tm)

Id: phase:mg-tm:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 847.99–2500 K, x(Tm) 0–1
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mg-tm:liquid
paper: paper:10.1016/j.jallcom.2003.10.033:liquid
tdb: tdb:MgTm-04Du-LB.tdb:LIQUID

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

MgTm-04Du-LB.tdb: LIQUID, type code %, sha256 8bc07bc38ca74452…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : MG TM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2003.10.033 Zhenmin Du, Hongying Liu, Gang Ling, Thermodynamic assessment of the Mg–Tm system, Journal of Alloys and Compounds 373, 151-155 (2004).
assessment that models this phase; reports values for this phase
doi:10.1016/0925-8388(94)06023-1 A. Saccone, D. Macciò, S. Delfino, R. Ferro, The interpolated TmMg phase diagram, Journal of Alloys and Compounds 220, 161-166 (1995).
cited as the source of values for this phase

MG24TM5_A12 (Mg–Tm)

Id: phase:mg-tm:mg24tm5-a12; status assigned
Structure: alpha-Mn · A12 · cI58 · I-43m (217); type st:a12-alpha-mn-ci58; tier A: standard phase name; confidence high
Stoichiometry: Mg 0.8276, Tm 0.1724
Stability: stable in 1 of 1 calculated diagram(s): 300–863.07 K, x(Tm) 0.17241–0.17241
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mg-tm:mg24tm5-a12
paper: paper:10.1016/j.jallcom.2003.10.033:Mg24Tm5
tdb: tdb:MgTm-04Du-LB.tdb:MG24TM5_A12

TDB models of MG24TM5_A12 (1): PHASE and CONSTITUENT statements as written

MgTm-04Du-LB.tdb: MG24TM5_A12, type code %, sha256 8bc07bc38ca74452…

41: PHASE MG24TM5_A12 % 2 24 5 !
42: CONST MG24TM5_A12 : MG : TM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2003.10.033 Zhenmin Du, Hongying Liu, Gang Ling, Thermodynamic assessment of the Mg–Tm system, Journal of Alloys and Compounds 373, 151-155 (2004).
assessment that models this phase; reports values for this phase
doi:10.1016/0925-8388(94)06023-1 A. Saccone, D. Macciò, S. Delfino, R. Ferro, The interpolated TmMg phase diagram, Journal of Alloys and Compounds 220, 161-166 (1995).
cited as the source of values for this phase

MG2TM_C14 (Mg–Tm)

Id: phase:mg-tm:mg2tm-c14; status assigned
Structure: MgZn2 · C14 · hP12 · P6_3/mmc (194); type st:c14-mgzn2-hp12; tier A: standard phase name; confidence high
Stoichiometry: Mg 0.6667, Tm 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 300–903.04 K, x(Tm) 0.33333–0.33333
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mg-tm:mg2tm-c14
paper: paper:10.1016/j.jallcom.2003.10.033:Mg2Tm
tdb: tdb:MgTm-04Du-LB.tdb:MG2TM_C14

TDB models of MG2TM_C14 (1): PHASE and CONSTITUENT statements as written

MgTm-04Du-LB.tdb: MG2TM_C14, type code %, sha256 8bc07bc38ca74452…

46: PHASE MG2TM_C14 % 2 2 1 !
47: CONST MG2TM_C14 : MG : TM : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2003.10.033 Zhenmin Du, Hongying Liu, Gang Ling, Thermodynamic assessment of the Mg–Tm system, Journal of Alloys and Compounds 373, 151-155 (2004).
assessment that models this phase; reports values for this phase
doi:10.1016/0925-8388(94)06023-1 A. Saccone, D. Macciò, S. Delfino, R. Ferro, The interpolated TmMg phase diagram, Journal of Alloys and Compounds 220, 161-166 (1995).
cited as the source of values for this phase

MGTM_B2 (Mg–Tm)

Id: phase:mg-tm:mgtm-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–1033.21 K, x(Tm) 0.41162–0.51997
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:mg-tm:mgtm-b2
paper: paper:10.1016/j.jallcom.2003.10.033:MgTm
tdb: tdb:MgTm-04Du-LB.tdb:MGTM_B2

TDB models of MGTM_B2 (1): PHASE and CONSTITUENT statements as written

MgTm-04Du-LB.tdb: MGTM_B2, type code %, sha256 8bc07bc38ca74452…

51: PHASE MGTM_B2 % 2 1 1 !
52: CONST MGTM_B2 : MG% VA : MG TM% : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jallcom.2003.10.033 Zhenmin Du, Hongying Liu, Gang Ling, Thermodynamic assessment of the Mg–Tm system, Journal of Alloys and Compounds 373, 151-155 (2004).
assessment that models this phase; reports values for this phase
doi:10.1016/0925-8388(94)06023-1 A. Saccone, D. Macciò, S. Delfino, R. Ferro, The interpolated TmMg phase diagram, Journal of Alloys and Compounds 220, 161-166 (1995).
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}
}