Mo–Ti system

2 accepted literature values from 1 paper(s) (experimental 1, model 1); 8 calculated phase diagram(s). 11 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 (13) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	1
model	1

Accepted values by property group
Property group	Values
invariant reaction	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
MoTi-16Yan.tdb	J.-Y. Yan, G.B. Olson, J. Alloys Compd., 673, 441-54(2016). doi:10.1016/j.jallcom.2016.02.251	`99cf8bc3e542cda757a3656ebf7acc7e0dc213b114baefe8463e066dfc2b7858`	viewer · TDB · JSON
MoTi-18Hu.tdb	B. Hu, Y. Jiang, J. Wang, B. Yao, F. Min, Y. Du, Calphad, 62, 75-82(2018). doi:10.1016/j.calphad.2018.05.007	`d5f576e402a6c4706ed95957f4013a11ff9f34093c3b25f98c772556f6e200b4`	viewer · TDB · JSON
MoTi-20Jia.tdb	C. Jiang, R.D. Mariani, C.A. Adkins, Materialia, 10, 100701(2020). doi:10.1016/j.mtla.2020.100701	`d8cb5a83578640f5cf8d649ab6ceff37f1adc51b9f8ebefa61a22cc5dcd3e881`	viewer · TDB · JSON
MoTi-23Dac.tdb	R.A. Daclan, M.G. Mena, M.R. Vazquez, W. Gierlotka, J. Mining Metall. B, 59, 125-36(2023). doi:10.2298/JMMB210330011D	`04ec486753053de824f001b2ddbdae32d092d23384bc6c132144871904a20a9e`	viewer · TDB · JSON
MoTi-93Jin.tdb	Z.-P. Jin, C. Qiu, Metall. Trans. A, 24A, 2137-44(1993). doi:10.1007/BF02648587	`8071078bb74b3de2bb9e9a1711c52bfd074dbd673d7dff3d8191cd213445c917`	viewer · TDB · JSON
MoTi-96Shi.tdb	J.-H. Shim, C.-S. Oh, D.N. Lee, Metall. Mater. Trans. B, 27B, 955-66(1996). doi:10.1007/s11663-996-0009-8	`81beb468857dd70edd6e87629c8491941045d3019d0644906a2cb60c42952372`	viewer · TDB · JSON
MoTi-98Sau-LB.tdb	N. Saunders, COST 507, Final report round 2, 1998.	`69c921b92002fbea2ce9e68eaaba163d910eb6c85ca4d2420e4b96134530d9bc`	viewer · TDB · JSON
MoTi-99Chu.tdb	H.-J. Chung, J.-H. Shim, D.N. Lee, J. Alloys Compd., 282, 142-48(1999). doi:10.1016/S0925-8388(98)00711-7	`16a2cd8f1115c9e4e90f6e4898c34e9e9183d14803bde1729e2bbc93b1cd2986`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
MoTi-16Yan.tdb	2473.28	BCC_A2 (x(Ti) 0.36235) + LIQUID (x(Ti) 0.49684) + HCP_A3 (x(Ti) 0.497)
MoTi-16Yan.tdb	2237.59	BCC_A2 (x(Ti) 0.5897) + HCP_A3 (x(Ti) 0.64585) + LIQUID (x(Ti) 0.71117)
MoTi-20Jia.tdb	793.14	MOTI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.80507) + HCP_A3 (x(Ti) 1)
MoTi-20Jia.tdb	793.14	MOTI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.80514) + HCP_A3 (x(Ti) 1)
MoTi-20Jia.tdb	793.14	MOTI2 (x(Ti) 0.66667) + BCC_A2 (x(Ti) 0.8052) + HCP_A3 (x(Ti) 1)
MoTi-20Jia.tdb	732.43	MOTI (x(Ti) 0.5) + BCC_A2 (x(Ti) 0.51011) + MOTI2 (x(Ti) 0.66667)
MoTi-20Jia.tdb	732.43	MOTI (x(Ti) 0.5) + BCC_A2 (x(Ti) 0.51031) + MOTI2 (x(Ti) 0.66667)
MoTi-20Jia.tdb	714.71	MO3TI2 (x(Ti) 0.4) + BCC_A2 (x(Ti) 0.44589) + MOTI (x(Ti) 0.5)
MoTi-20Jia.tdb	714.71	MO3TI2 (x(Ti) 0.4) + BCC_A2 (x(Ti) 0.44605) + MOTI (x(Ti) 0.5)
MoTi-20Jia.tdb	699.9	MO2TI (x(Ti) 0.33333) + BCC_A2 (x(Ti) 0.34287) + MO3TI2 (x(Ti) 0.4)
MoTi-20Jia.tdb	699.9	MO2TI (x(Ti) 0.33333) + BCC_A2 (x(Ti) 0.34308) + MO3TI2 (x(Ti) 0.4)
MoTi-20Jia.tdb	661.33	MO4TI (x(Ti) 0.2) + BCC_A2 (x(Ti) 0.2729) + MO2TI (x(Ti) 0.33333)
MoTi-20Jia.tdb	661.33	MO4TI (x(Ti) 0.2) + BCC_A2 (x(Ti) 0.27304) + MO2TI (x(Ti) 0.33333)
MoTi-20Jia.tdb	647.18	BCC_A2 (x(Ti) 0.13108) + MO5TI (x(Ti) 0.16667) + MO4TI (x(Ti) 0.2)
MoTi-20Jia.tdb	647.18	BCC_A2 (x(Ti) 0.1311) + MO5TI (x(Ti) 0.16667) + MO4TI (x(Ti) 0.2)
MoTi-20Jia.tdb	523.24	BCC_A2 (x(Ti) 0.0858) + MO7TI (x(Ti) 0.125) + MO5TI (x(Ti) 0.16667)
MoTi-20Jia.tdb	523.24	BCC_A2 (x(Ti) 0.08579) + MO7TI (x(Ti) 0.125) + MO5TI (x(Ti) 0.16667)
MoTi-20Jia.tdb	523.24	BCC_A2 (x(Ti) 0.08589) + MO7TI (x(Ti) 0.125) + MO5TI (x(Ti) 0.16667)
MoTi-20Jia.tdb	314.18	BCC_A2 (x(Ti) 0.03385) + MO9TI (x(Ti) 0.1) + MO7TI (x(Ti) 0.125)
MoTi-20Jia.tdb	314.18	BCC_A2 (x(Ti) 0.03386) + MO9TI (x(Ti) 0.1) + MO7TI (x(Ti) 0.125)
MoTi-20Jia.tdb	314.18	BCC_A2 (x(Ti) 0.03382) + MO9TI (x(Ti) 0.1) + MO7TI (x(Ti) 0.125)
MoTi-96Shi.tdb	968.19	BCC_A2 (x(Ti) 0.40132) + BCC_A2#2 (x(Ti) 0.87967) + HCP_A3 (x(Ti) 0.99646)
MoTi-99Chu.tdb	948.61	BCC_A2 (x(Ti) 0.45878) + BCC_A2#2 (x(Ti) 0.87199) + HCP_A3 (x(Ti) 0.99266)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull MoTi-16Yan · CALPHAD hull MoTi-18Hu · CALPHAD hull MoTi-20Jia · CALPHAD hull MoTi-93Jin · CALPHAD hull MoTi-96Shi · CALPHAD hull MoTi-98Sau-LB · CALPHAD hull MoTi-99Chu

Invariant reactions (literature)

Invariant reactions reported in the literature for the Mo–Ti system (2)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location	Quote
968	bcc(1) = hcp + bcc(2)	bcc(1): Ti 0.88; hcp: Ti 0.996; bcc(2): Ti 0.4	experimental	[1] Shim 1996 cites Murray 1987	Table II, p. 6, row 2 report
968	bcc(1) = hcp + bcc(2)	bcc(1): Ti 0.88; hcp: Ti 0.9965; bcc(2): Ti 0.4	model	[1] Shim 1996	Table II, p. 6, row 1 report

Sources

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

Jae-Hyeok Shim, Chang-Seok Oh, Dong Nyung Lee, A thermodynamic evaluation of the Ti-Mo-C system, Metall Mater Trans B 27, 955-966 (1996). doi:10.1007/s11663-996-0009-8

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}
}