Mg–Ti system

4 accepted literature values from 1 paper(s) (model 4); 1 calculated phase diagram(s). 2 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 (4) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
model	4

Accepted values by property group
Property group	Values
invariant reaction	2
phase transition	2

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
MgTi-86Mur.tdb	J.L. Murray, Bull. Alloy Phase Diagrams, 7, 245-48(1986). doi:10.1007/BF02868999	`f80e2adcacb6b13d5c4fb55cd9f677865697ac52de15813bc2126c426ca56bfd`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
MgTi-86Mur.tdb	2178.17	LIQUID#2 (x(Ti) 0.01604) + BCC_A2 (x(Ti) 0.85738) + LIQUID (x(Ti) 0.98396)
MgTi-86Mur.tdb	1135.22	LIQUID (x(Ti) 1.800e-4) + BCC_A2 (x(Ti) 0.97442) + HCP_A3 (x(Ti) 0.98366)
MgTi-86Mur.tdb	923.98	LIQUID (x(Ti) 2.000e-5) + HCP_A3 (x(Ti) 0.0012) + HCP_A3#2 (x(Ti) 0.98523)
MgTi-86Mur.tdb	923.98	LIQUID (x(Ti) 2.000e-5) + HCP_A3 (x(Ti) 0.0012) + HCP_A3#2 (x(Ti) 0.98523)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Mg–Ti system (2)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location	Quote
1138.15	metatectic/catatectic: (βTi) -> (αTi) + (LMg)	(βTi): Ti 0.976; (αTi): Ti 0.984; (LMg): Ti 1.400e-4	model	[1] Murray 1986	Table 1, p. 2, row 2 report
924.15	peritectic: L + (αTi) -> (Mg)	L: Ti 1.000e-5; (αTi): Ti 0.985; (Mg): Ti 0.0012	model	[1] Murray 1986	Table 1, p. 2, row 1 report

Other properties

Phase transition (2)

Phase transition, Mg–Ti system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	923.15 K	923.15	congruent melting: L -> (Mg) (Mg): Ti 0	model	[1] Murray 1986	Table 1, p. 2, row 5 report
Phase transition	1943.15 K	1943.15	congruent melting: L -> (βTi) (βTi): Ti 1	model	[1] Murray 1986	Table 1, p. 2, row 3 report

Sources

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

J. L. Murray, The Mg−Ti (Magnesium-Titanium) system, Bulletin of Alloy Phase Diagrams 7, 245-248 (1986). doi:10.1007/bf02868999

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}
}