Fe–V system

2 accepted literature values from 1 paper(s) (experimental 2); 5 calculated phase diagram(s). 4 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	2

Accepted values by property group
Property group	Values
formation	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
FeV-12Guo.tdb	C. Guo, C. Li, X. Zheng, Z. Du, Calphad, 38, 155-60(2012). doi:10.1016/j.calphad.2012.06.010	`16cbad7b1e894fc9604ab6cf2b7ae8691ad648cd9b1e5596fbfd4dd8c96742cd`	viewer · TDB · JSON
FeV-23Pan.tdb	Q. Pan, W. Liu, T. Wu, W. Zheng, J. Wang, X.-G. Lu, Calphad, 80, 102529(2023). doi:10.1016/j.calphad.2023.102529	`628bcb5606df1ede3afee686c504cf5e68b86bb9bc69f805c138e5b652d85343`	viewer · TDB · JSON
FeV-83And.tdb	J.-O. Andersson, Calphad, 7, 305-15(1983). doi:10.1016/0364-5916(83)90010-X	`ae3a5084e051fc28b6c2bd07690fbf85a31ee87510523291a51253b25430b569`	viewer · TDB · JSON
FeV-91Har.tdb	K.C. Hari Kumar, V. Raghavan, Calphad, 15, 307-14(1991). doi:10.1016/0364-5916(91)90008-8	`6a58f15acd80cf547d8a86b47aef9d78e5b130a47a0daaf0ebb0ab51e527ae54`	viewer · TDB · JSON
FeV-91Hua-LB.tdb	W. Huang, Z. Metallkd., 82, 391-401(1991). doi:10.1515/ijmr-1991-820510	`879c739fcb81e8717cefff8487f75c373a1caee90c855401fdbec2be3f22a113`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
FeV-91Hua-LB.tdb	1503.39	BCC_A2 (x(V) 0.47894) + SIGMA_OLD (x(V) 0.4811) + SIGMA_D8B (x(V) 0.49183)
FeV-91Hua-LB.tdb	868.45	BCC_A2 (x(V) 0.1931) + SIGMA_OLD (x(V) 0.33709) + SIGMA_D8B (x(V) 0.34007)
FeV-91Hua-LB.tdb	397.2	SIGMA_D8B (x(V) 0.66924) + SIGMA_OLD (x(V) 0.72128) + BCC_A2 (x(V) 0.84729)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull FeV-12Guo · CALPHAD hull FeV-83And · CALPHAD hull FeV-91Har · CALPHAD hull FeV-91Hua-LB

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Fe–V system (2)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location	Quote
bee		-5.3 kJ/mol (basis unstated)	1623	experimental			[1] Huang 1991 cites ref. 2	p. 4 report	For a SO-50 alloy and with the same structure of pure elements as reference give the following enthalpy of formation of the Fe-Mn states, the experiments alloy (1): -1 kJ/mol for liquid at 1873 K, -2 kJ/mol for fee at 1443 K; of the Fe-V alloy (2): -8.6 kJ/mol for liquid at 1873 K, -5.3 kJ/mol for bee at 1623 K.
liquid		-8.6 kJ/mol (basis unstated)	1873	experimental			[1] Huang 1991 cites ref. 2	p. 4 report	For a SO-50 alloy and with the same structure of pure elements as reference give the following enthalpy of formation of the Fe-Mn states, the experiments alloy (1): -1 kJ/mol for liquid at 1873 K, -2 kJ/mol for fee at 1443 K; of the Fe-V alloy (2): -8.6 kJ/mol for liquid at 1873 K, -5.3 kJ/mol for bee at 1623 K.

Sources

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

Weiming Huang, A Thermodynamic Analysis of the Mn-V And Fe-Mn-V Systems, Calphad 15, 195-208 (1991). doi:10.1016/0364-5916(91)90018-f

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}
}