Mg–Mn system

28 accepted literature values from 2 paper(s) (experimental 23, model 5); 2 calculated phase diagram(s). 18 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 (6) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	23
model	5

Accepted values by property group
Property group	Values
invariant reaction	5
phase transition	23

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.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
MgMn-05Gro.tdb	J. Groebner, D. Mirkovic, M. Ohno, R. Schmid-Fetzer, J. Phase Equilib. Diffus., 26, 234-39(2005). doi:10.1361/15477030523544	`40410ae177c1b637b8fe2e85f469cbb9f9fc49a3c430034b7f2e96518bd77525`	viewer · TDB · JSON
MgMn-98Tib-LB.tdb	J. Tibballs, COST 507, Final report round 2, 1998.	`99f0783dd34feea369b7f7a3ea499cfded24a7078e1c8213123bf2085462ec5e`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
MgMn-05Gro.tdb	1471.27	LIQUID (x(Mn) 0.07315) + LIQUID#2 (x(Mn) 0.96103) + BCC_A2 (x(Mn) 0.9994)
MgMn-05Gro.tdb	1410.63	LIQUID (x(Mn) 0.06175) + BCC_A2 (x(Mn) 0.99955) + FCC_A1 (x(Mn) 0.99959)
MgMn-05Gro.tdb	1360.09	LIQUID (x(Mn) 0.05296) + CUB_A13 (x(Mn) 0.99966) + FCC_A1 (x(Mn) 0.99968)
MgMn-05Gro.tdb	980	LIQUID (x(Mn) 0.01173) + CBCC_A12 (x(Mn) 0.99998) + CUB_A13 (x(Mn) 0.99998)
MgMn-05Gro.tdb	923.76	LIQUID (x(Mn) 0.00853) + HCP_A3 (x(Mn) 0.00963) + CBCC_A12 (x(Mn) 0.99999)
MgMn-05Gro.tdb	923.76	LIQUID (x(Mn) 0.00853) + HCP_A3 (x(Mn) 0.00963) + CBCC_A12 (x(Mn) 0.99999)
MgMn-98Tib-LB.tdb	1446.96	LIQUID (x(Mn) 0.06265) + LIQUID#2 (x(Mn) 0.93735) + BCC_A2 (x(Mn) 0.99809)
MgMn-98Tib-LB.tdb	1409.62	LIQUID (x(Mn) 0.05668) + BCC_A2 (x(Mn) 0.99834) + FCC_A1 (x(Mn) 0.9985)
MgMn-98Tib-LB.tdb	1360.36	LIQUID (x(Mn) 0.04913) + CUB_A13 (x(Mn) 0.99872) + FCC_A1 (x(Mn) 0.99877)
MgMn-98Tib-LB.tdb	980.02	LIQUID (x(Mn) 0.01188) + CBCC_A12 (x(Mn) 0.99986) + CUB_A13 (x(Mn) 0.99987)
MgMn-98Tib-LB.tdb	923.77	LIQUID (x(Mn) 0.00882) + HCP_A3 (x(Mn) 0.00988) + CBCC_A12 (x(Mn) 0.99991)
MgMn-98Tib-LB.tdb	923.77	LIQUID (x(Mn) 0.00882) + HCP_A3 (x(Mn) 0.00988) + CBCC_A12 (x(Mn) 0.99991)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull MgMn-98Tib-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the Mg–Mn system (5)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1447	monotectic: Liquid" -> Liquid' + bcc-A2	Liquid": Mn 0.937; Liquid': Mn 0.063; bcc-A2: Mn 0.998	model	[1] (ed.) 1998	Table I, p. 233, row 5 report
1409.6	metatectic/catatectic: bcc-A2 -> Liquid' + fcc-A1	bcc-A2: Mn 0.998; Liquid': Mn 0.057; fcc-A1: Mn 0.999	model	[1] (ed.) 1998	Table I, p. 233, row 4 report
1351.7	metatectic/catatectic: fcc-A1 -> Liquid' + cub-A13	fcc-A1: Mn 0.999; Liquid': Mn 0.048; cub-A13: Mn 1	model	[1] (ed.) 1998	Table I, p. 233, row 3 report
980.5	metatectic/catatectic: cub-A13 -> Liquid' + cbcc-A12	cub-A13: Mn 0.999; Liquid': Mn 0.012; cbcc-A12: Mn 1	model	[1] (ed.) 1998	Table I, p. 233, row 2 report
923.8	peritectic: Liquid' + cbcc-A12 -> hcp-A3	Liquid': Mn 0.008; cbcc-A12: Mn 1; hcp-A3: Mn 0.009	model	[1] (ed.) 1998	Table I, p. 233, row 1 report

Other properties

Phase transition (23)

Phase transition, Mg–Mn system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	917.15 K	917.15	eutectic: L' + αMn = (Mg) alloy: Mg 0.1, Mn 0.9	experimental	[2] Gröbner 2005	Table 1, p. 2, row 13 report
Phase transition	919.15 K	919.15	eutectic: L' + αMn = (Mg) alloy: Mg 0.2, Mn 0.8	experimental	[2] Gröbner 2005	Table 1, p. 2, row 6 report
Phase transition	922.15 K	922.15	eutectic: L' + αMn = (Mg) alloy: Mg 0.5, Mn 0.5	experimental	[2] Gröbner 2005	Table 1, p. 2, row 2 report
Phase transition	923.15 K	923.15	Liquid = (Mg) alloy: Mg 1, Mn 0	experimental	[2] Gröbner 2005	Table 1, p. 2, row 1 report
Phase transition	1004.15 K	1004.15	eutectic: αMn = βMn, (L') alloy: Mg 0.1, Mn 0.9	experimental	[2] Gröbner 2005	Table 1, p. 2, row 14 report
Phase transition	1004.15 K	1004.15	eutectic: αMn = βMn, (L') alloy: Mg 0.2, Mn 0.8	experimental	[2] Gröbner 2005	Table 1, p. 2, row 7 report
Phase transition	1007.15 K	1007.15	αMn = βMn alloy: Mg 0, Mn 1	experimental	[2] Gröbner 2005	Table 1, p. 2, row 21 report
Phase transition	1351.15 K	1351.15	βMn = γMn alloy: Mg 0, Mn 1	experimental	[2] Gröbner 2005	Table 1, p. 2, row 22 report
Phase transition	1356.15 K	1356.15	eutectic: βMn = γMn, (L') alloy: Mg 0.1, Mn 0.9	experimental	[2] Gröbner 2005	Table 1, p. 2, row 15 report
Phase transition	1368.15 K	1368.15	eutectic: βMn = γMn, (L') alloy: Mg 0.2, Mn 0.8	experimental	[2] Gröbner 2005	Table 1, p. 2, row 8 report
Phase transition	1373.15 K	1373.15	eutectic: (f) alloy: Mg 0.1, Mn 0.9	experimental	[2] Gröbner 2005	Table 1, p. 2, row 16 report
Phase transition	1381.15 K	1381.15	eutectic: (f) alloy: Mg 0.2, Mn 0.8	experimental	[2] Gröbner 2005	Table 1, p. 2, row 9 report
Phase transition	1393.15 K	1393.15	eutectic: (f) alloy: Mg 0.5, Mn 0.5	experimental	[2] Gröbner 2005	Table 1, p. 2, row 3 report
Phase transition	1408.15 K	1408.15	eutectic: γMn = δMn, (L') alloy: Mg 0.2, Mn 0.8	experimental	[2] Gröbner 2005	Table 1, p. 2, row 10 report
Phase transition	1410.15 K	1410.15	eutectic: γMn = δMn, (L') alloy: Mg 0.1, Mn 0.9	experimental	[2] Gröbner 2005	Table 1, p. 2, row 18 report
Phase transition	1411.15 K	1411.15	γMn = δMn alloy: Mg 0, Mn 1	experimental	[2] Gröbner 2005	Table 1, p. 2, row 23 report
Phase transition	1470.15 K	1470.15	eutectic: L'' = L' + δMn alloy: Mg 0.1, Mn 0.9	experimental	[2] Gröbner 2005	Table 1, p. 2, row 19 report
Phase transition	1470.15 K	1470.15	eutectic: L'' = L' + δMn alloy: Mg 0.5, Mn 0.5	experimental	[2] Gröbner 2005	Table 1, p. 2, row 4 report
Phase transition	1471.15 K	1471.15	eutectic: L'' = L' + δMn alloy: Mg 0.2, Mn 0.8	experimental	[2] Gröbner 2005	Table 1, p. 2, row 11 report
Phase transition	1473.15 K	1473.15	eutectic: (f) alloy: Mg 0.1, Mn 0.9	experimental	[2] Gröbner 2005	Table 1, p. 2, row 20 report
Phase transition	1474.15 K	1474.15	eutectic: (f) alloy: Mg 0.2, Mn 0.8	experimental	[2] Gröbner 2005	Table 1, p. 2, row 12 report
Phase transition	1476.15 K	1476.15	eutectic: (f) alloy: Mg 0.5, Mn 0.5	experimental	[2] Gröbner 2005	Table 1, p. 2, row 5 report
Phase transition	1514.15 K	1514.15	δMn = Liquid alloy: Mg 0, Mn 1	experimental	[2] Gröbner 2005	Table 1, p. 2, row 24 report

Sources

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

I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8.
J. Gröbner, D. Mirkovic, M. Ohno, R. Schmid-Fetzer, Experimental Investigation and Thermodynamic Calculation of Binary Mg-Mn Phase Equilibria, Journal of Phase Equilibria & Diffusion 26, 234-239 (2005). doi:10.1361/15477030523544

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). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735891
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 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.

@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_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@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}
}