Al–Mo–Ti system

29 accepted literature values from 1 paper(s) (experimental 11, model 18); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	11
model	18

Accepted values by property group
Property group	Values
invariant reaction	16
phase equilibrium	13

Invariant reactions (literature)

Invariant reactions reported in the literature for the Al–Mo–Ti system (16)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1800	Liquid + Al63Mo37 -> β + Al8Mo3	Liquid: Al 0.649, Mo 0.337, Ti 0.014; Al63Mo37: Al 0.63, Mo 0.37, Ti 0; Al8Mo3: Al 0.727273, Mo 0.272727, Ti 0	model	[1] Cupid 2010	Table 3, p. 9, row 1 report
1773	Liquid + Al63Mo37 -> β + Al8Mo3	Al63Mo37: Al 0.63, Mo 0.37, Ti 0; Al8Mo3: Al 0.727273, Mo 0.272727, Ti 0	experimental	[1] Cupid 2010 cites Tretyachenko 2005	Table 3, p. 9, row 2 report
1743	Liquid + Al8Mo3 -> β + η	Al8Mo3: Al 0.727273, Mo 0.272727, Ti 0	experimental	[1] Cupid 2010 cites Tretyachenko 2005	Table 3, p. 9, row 6 report
1713	Liquid + α -> β + γ		experimental	[1] Cupid 2010 cites Tretyachenko 2005	Table 3, p. 9, row 4 report
1701	Liquid + α -> β + γ	Liquid: Al 0.551, Mo 0.015, Ti 0.435	model	[1] Cupid 2010	Table 3, p. 9, row 3 report
1676	Liquid + Al8Mo3 -> β + η	Liquid: Al 0.634, Mo 0.251, Ti 0.115; Al8Mo3: Al 0.727273, Mo 0.272727, Ti 0	model	[1] Cupid 2010	Table 3, p. 9, row 5 report
1673	Liquid + ζ -> η + γ		experimental	[1] Cupid 2010 cites Tretyachenko 2005	Table 3, p. 9, row 8 report
1643	Liquid -> γ + η + β		experimental	[1] Cupid 2010 cites Tretyachenko 2005	Table 3, p. 9, row 10 report
1627	Liquid + ζ -> η + γ	Liquid: Al 0.674, Mo 0.024, Ti 0.302	model	[1] Cupid 2010	Table 3, p. 9, row 7 report
1569	Liquid -> γ + η + β	Liquid: Al 0.554, Mo 0.082, Ti 0.334	model	[1] Cupid 2010	Table 3, p. 9, row 9 report
1494	Liquid + Al8Mo3 -> η + Al3Mo	Liquid: Al 0.952, Mo 0.047, Ti 0.001; Al8Mo3: Al 0.727273, Mo 0.272727, Ti 0	model	[1] Cupid 2010	Table 3, p. 9, row 11 report
1425	Liquid + Al3Mo -> η + Al4Mo	Liquid: Al 0.967, Mo 0.033, Ti 0; Al4Mo: Al 0.8, Mo 0.2, Ti 0	model	[1] Cupid 2010	Table 3, p. 9, row 12 report
1270	Liquid + Al4Mo -> η + Al17Mo4	Liquid: Al 0.994, Mo 0.006, Ti 0; Al4Mo: Al 0.8, Mo 0.2, Ti 0	model	[1] Cupid 2010	Table 3, p. 9, row 13 report
1213	Liquid + Al17Mo4 -> η + Al22Mo5	Liquid: Al 0.998, Mo 0.002, Ti 0	model	[1] Cupid 2010	Table 3, p. 9, row 14 report
1119	Liquid + Al22Mo5 -> η + Al5Mo	Liquid: Al 0.998, Mo 0.002, Ti 0; Al5Mo: Al 0.833333, Mo 0.166667, Ti 0	model	[1] Cupid 2010	Table 3, p. 9, row 15 report
985	Liquid + η + Al5Mo -> Al12Mo	Liquid: Al 0.9997, Mo 3.000e-4, Ti 0; Al5Mo: Al 0.833333, Mo 0.166667, Ti 0; Al12Mo: Al 0.923077, Mo 0.076923, Ti 0	model	[1] Cupid 2010	Table 3, p. 9, row 16 report

Other properties

Phase equilibrium (13)

Phase equilibrium, Al–Mo–Ti system
Property	T (K)	Phases / composition	Class	Source	Location	Quote
Phase assemblage	1073	a alloy: Al 0.025, Mo 0.025, Ti 0.95	experimental	[1] Cupid 2010 cites Eremenko 1990	p. 3 report	The Ti-rich a single phase was also observed in an alloy 95 at.%Tie2.5 at. %Ale2.5 at.%Mo which was heat treated at 1073 K for 222 h and quenched [53].
Phase assemblage	1198	d-AlMo3 alloy: Al 0.24, Mo 0.58, Ti 0.18	model	[1] Cupid 2010 cites Hansen 1970	p. 3 report	Additionally, an alloy of composition 18 at.%Tie24 at.%Ale58 at.% Mo, which was heat treated at 1198 K and quenched, contained only the d-AlMo3 phase [48], which indicates that the d-AlMo3 phase extends to at least 18 at.%Ti at 1198 K in the TieAleMo system.
Phase assemblage	1198	h-(Ti,Mo)Al3 alloy: Al 0.75, Mo 0.125, Ti 0.125	model	[1] Cupid 2010 cites Hansen 1970	p. 3 report	Hansen and Raman [48] showed that alloys of composition 26 at.%Tie64 at.%Ale10 at.%Mo, 16 at.%Tie68 at.% Ale16 at.%Mo, and 12.5 at.%Tie75 at.%Ale12.5 at.%Mo were all single phase h-(Ti,Mo)Al3 at 1198 K, and the h-(Ti,Mo)Al3 phase was found to extend to Mo compositions as high as 20 at.%Mo and Al compositions as low as 62 at.%Al at 1198 K [48].
Phase assemblage	1198	h-(Ti,Mo)Al3 alloy: Al 0.68, Mo 0.16, Ti 0.16	model	[1] Cupid 2010 cites Hansen 1970	p. 3 report	Hansen and Raman [48] showed that alloys of composition 26 at.%Tie64 at.%Ale10 at.%Mo, 16 at.%Tie68 at.% Ale16 at.%Mo, and 12.5 at.%Tie75 at.%Ale12.5 at.%Mo were all single phase h-(Ti,Mo)Al3 at 1198 K, and the h-(Ti,Mo)Al3 phase was found to extend to Mo compositions as high as 20 at.%Mo and Al compositions as low as 62 at.%Al at 1198 K [48].
Phase assemblage	1198	h-(Ti,Mo)Al3 alloy: Al 0.64, Mo 0.1, Ti 0.26	model	[1] Cupid 2010 cites Hansen 1970	p. 3 report	Hansen and Raman [48] showed that alloys of composition 26 at.%Tie64 at.%Ale10 at.%Mo, 16 at.%Tie68 at.% Ale16 at.%Mo, and 12.5 at.%Tie75 at.%Ale12.5 at.%Mo were all single phase h-(Ti,Mo)Al3 at 1198 K, and the h-(Ti,Mo)Al3 phase was found to extend to Mo compositions as high as 20 at.%Mo and Al compositions as low as 62 at.%Al at 1198 K [48].
Phase assemblage	1198	s alloy: Al 0.41, Mo 0.33, Ti 0.26	model	[1] Cupid 2010 cites Hansen 1970	p. 4 report	Hansen and Raman [48] found the ternary s phase in the single phase alloy of composition 26 at.%Tie41 at.%Ale33 at.%Mo at 1198 K.
Phase assemblage	1273	b0 alloy: Al 0.25, Mo 0.25, Ti 0.5	experimental	[1] Cupid 2010 cites Singh 2007 doi	p. 4 report	Singh et al. [59] performed Rietveld refinement of X-ray and neutron diffraction data from an alloy of composition 50 at.%Tie25 at.%Ale25 at.%Mo which was homogenized at 1273 K and furnace cooled. The alloy was found to contain the b0 phase, and Rietveld refinement of the data showed that Ti atoms occupy A sites and Al and Mo atoms occupy the B sites in the CsCl structure.
Phase assemblage	1673	a alloy: Al 0.48, Mo 0.02, Ti 0.5	experimental	[1] Cupid 2010 cites Singh 1997 doi	p. 3 report	Although the maximum solubility of Mo in the a phase has not been measured, Singh and Banerjee [52] showed that an alloy of composition 50 at.%Tie48 at.%Ale2 at.%Mo is in the single phase a field at 1673 K and suggested that the a phase field extends to an alloy of composition 44 at.%Tie50 at.%Ale6 at.%Mo at 1673 K.
Phase assemblage	1673	b + Al8Mo3 + d-AlMo3 alloy: Al 0.52, Mo 0.45, Ti 0.03	experimental	[1] Cupid 2010 cites Nino 2003 doi	p. 3 report	For example, the equilibrium b þ Al8Mo3 þ d-AlMo3 tie-triangle data for an alloy of composition 3 at.%Tie52 at.%Ale45 at.%Mo, which was heat treated at 1673 K and quenched, showed that the Al8Mo3 phase dissolved 1 at.%Ti and that the d-AlMo3 phase dissolved 2.7 at.%Ti [15].
Phase assemblage	1773	b alloy: Al 0.52, Mo 0.45, Ti 0.03	experimental	[1] Cupid 2010 cites Nino 2003 doi	p. 4 report	For example, although the alloy of composition 3 at.%Tie52 at.% Ale45 at.%Mo should be single phase b at 1773 K [15], this alloy is calculated in the liquid þ b þ Al63Mo37 three phase field at the same temperature and is located in the primary crystallization field of the d phase on the calculated liquidus surface [16].
Phase assemblage	1773	b alloy: Al 0.52, Mo 0.45, Ti 0.03	experimental	[1] Cupid 2010 cites Nino 2003 doi	p. 4 report	The results of Nino et al. [15] also confirmed that the b phase is continuous in the solid state solution from the TieMo binary to the AleMo binary since an alloy of composition 3 at.%Tie52 at.%Ale45 at.%Mo, with only 3 at.%Ti, showed a single phase b microstructure following heat treatment at 1773 K and quenching [15].
Phase assemblage	1773	b alloy: Al 0.52, Mo 0.45, Ti 0.03	model	[1] Cupid 2010	p. 8 report	Fig. 4 shows the calculated isothermal section at 1773 K. The alloy of composition 3 at.%Tie52 at.%Ale45 at.%Mo is calculated in the single phase b field, which is in very good agreement with the experimental work of Nino et al. [15].
Phase assemblage	1773	liquid + b + Al63Mo37 alloy: Al 0.52, Mo 0.45, Ti 0.03	model	[1] Cupid 2010 cites Cupid 2009 doi	p. 4 report	For example, although the alloy of composition 3 at.%Tie52 at.% Ale45 at.%Mo should be single phase b at 1773 K [15], this alloy is calculated in the liquid þ b þ Al63Mo37 three phase field at the same temperature and is located in the primary crystallization field of the d phase on the calculated liquidus surface [16].

Sources

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

Damian M. Cupid, Olga Fabrichnaya, Fereshteh Ebrahimi, Hans J. Seifert, Thermodynamic assessment of the Al–Mo system and of the Ti–Al–Mo System from 0 to 20at.% Ti, Intermetallics 18, 1185-1196 (2010). doi:10.1016/j.intermet.2010.03.010

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 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_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}
}