Ti–V system

13 accepted literature values from 2 paper(s) (model 1, DFT 12); 6 calculated phase diagram(s). 19 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 (5) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
model	1
DFT	12

Accepted values by property group
Property group	Values
phase transition	1
crystal structure	12

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
TiV-02Gho-LB.tdb	G. Ghosh, J. Phase Equilib., 23, 310-28(2002). doi:10.1361/105497102770331569	`e28bba4cf464a99c77e8c0f105b6bef26fbd7d22d47221c20ada343216825129`	viewer · TDB · JSON
TiV-16Yan.tdb	J.-Y. Yan, G.B. Olson, J. Alloys Compd., 673, 441-54(2016). doi:10.1016/j.jallcom.2016.02.251	`7d4bb1407b26ae190e5418dad94818fe6508117719dc11cee9bc8426f2a5dc25`	viewer · TDB · JSON
TiV-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	`141eaff2ffa0c132e2882bdc2ce3fc59be5a46053ed5d2d20c2e34911979e6d2`	viewer · TDB · JSON
TiV-90Sau.tdb	N. Saunders, Report to NPL contract No. 022805/10B, 1990. Cited from K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 18, 71-79(1994). doi:10.1016/0364-5916(90)90040-7	`e10fac912e69679f27ed86eadc9dd7da8b9646e4d0d9567c6d744387b081fcca`	viewer · TDB · JSON
TiV-98Sau.tdb	N. Saunders, COST 507, Final report round 2, 1998.	`610f6137add069a67604a8bcec91c5bd9362aae7b859f4a782a5666ef6b81d5c`	viewer · TDB · JSON
TiV-99Lee.tdb	J.Y. Lee, J.H. Kim, S.I. Park, H.M. Lee, J. Alloys Compd., 291, 229-38(1999). doi:10.1016/S0925-8388(99)00144-9	`45e3a36f6326de8669dccdd26c01378f91912cba34a7132fb79cebc32443011b`	viewer · TDB · JSON

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull TiV-02Gho-LB · CALPHAD hull TiV-16Yan · CALPHAD hull TiV-90Sau · CALPHAD hull TiV-98Sau · CALPHAD hull TiV-99Lee

Other properties

Phase transition (1)

Phase transition, Ti–V system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1881 K	1881	congruent melting: bcc-A2 -> Liquid bcc-A2: V 0.333; Liquid: V 0.333	model	[1] (ed.) 1998	Table I, p. 314, row 1 report

Crystal structure (12)

Crystal structure, Ti–V system
Property	Value	Phases / composition	Class	Source	Location
Lattice a	3.252 Å	bcc alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 3 report
Lattice a	3.259 Å	bcc alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 3 report
Lattice a	4.115 Å	fcc alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 4 report
Lattice a	4.109 Å	fcc alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 4 report
Lattice a	2.939 Å	hcp alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 1 report
Lattice a	2.933 Å	hcp alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 1 report
Lattice a	4.577 Å	ω alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 2 report
Lattice a	4.572 Å	ω alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 2 report
Lattice c	4.641 Å	hcp alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 1 report
Lattice c	4.657 Å	hcp alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 1 report
Lattice c	2.828 Å	ω alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 2 report
Lattice c	2.829 Å	ω alloy: V 0	DFT	[2] Hu 2020	Table 9, p. 9, row 2 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.
Biao Hu, Soumya Sridar, Liangyan Hao, Wei Xiong, A new thermodynamic modeling of the Ti–V system including the metastable ω phase, Intermetallics 122, 106791 (2020). doi:10.1016/j.intermet.2020.106791

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}
}