Bi–Fe–Ti system

23 accepted literature values from 1 paper(s) (experimental 8, model 12, DFT 3); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	8
model	12
DFT	3

Accepted values by property group
Property group	Values
invariant reaction	10
phase equilibrium	8
formation	1
crystal structure	4

Invariant reactions (literature)

Invariant reactions reported in the literature for the Bi–Fe–Ti system (10)
T (K)	Reaction / phases	Class	Source	Location
1592.7	quasi-peritectic: Liquid(#1) + Liquid(#2) = Fe2Ti + Bi2FeTi4	model	[1] Huang 2014	Table 6, p. 6, row 1 report
1574.4	eutectic: Liquid = Bi2FeTi4 + BCC_Ti + BiTi3	model	[1] Huang 2014	Table 6, p. 6, row 2 report
1568.5	eutectic: Liquid = Fe2Ti + Bi2FeTi4 + FeTi	model	[1] Huang 2014	Table 6, p. 6, row 3 report
1553.9	eutectic: Liquid(#1) = Liquid(#2) + BCC_Fe + Fe2Ti	model	[1] Huang 2014	Table 6, p. 6, row 4 report
1436	quasi-peritectic: Liquid + BiTi3 = Bi2FeTi4 + BiTi2	model	[1] Huang 2014	Table 6, p. 6, row 5 report
1351.2	eutectic: Liquid = Bi2FeTi4 + FeTi + BCC_Ti	model	[1] Huang 2014	Table 6, p. 6, row 6 report
1249	quasi-peritectic: Liquid + BiTi2 = Bi2FeTi4 + Bi2Ti3	model	[1] Huang 2014	Table 6, p. 6, row 7 report
1204.5	quasi-peritectic: Liquid + Bi2Ti3 = Bi2FeTi4 + Bi9Ti8	model	[1] Huang 2014	Table 6, p. 6, row 8 report
698.5	peritectic: Liquid + Bi2FeTi4 + Bi9Ti8 = Bi2Ti	model	[1] Huang 2014	Table 6, p. 6, row 9 report
544.6	peritectic: Liquid + Bi2FeTi4 + Bi2Ti = Rhomb_Bi	model	[1] Huang 2014	Table 6, p. 6, row 10 report

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, Bi–Fe–Ti system (1)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location	Quote
Ti4Bi2Fe		-25.72 kJ/mol (basis unstated)	0	DFT			[1] Huang 2014	Table 4, p. 5, row 6 report

Other properties

Phase equilibrium (8)

Phase equilibrium, Bi–Fe–Ti system
Property	Phases / composition	Class	Source	Location
Phase assemblage	Air corrosion, discarded alloy: Bi 0.5, Fe 0.05, Ti 0.45	experimental	[1] Huang 2014	Table 2, p. 3, row 8 report
Phase assemblage	Air corrosion, discarded alloy: Bi 0.375, Fe 0.05, Ti 0.575	experimental	[1] Huang 2014	Table 2, p. 3, row 7 report
Phase assemblage	Air corrosion, discarded alloy: Bi 0.29, Fe 0.03, Ti 0.68	experimental	[1] Huang 2014	Table 2, p. 3, row 6 report
Phase composition	Bi2FeTi4 + Fe2Ti Bi2FeTi4: Bi 0.284, Fe 0.144, Ti 0.572; Fe2Ti: Bi 0, Fe 0.651, Ti 0.349	experimental	[1] Huang 2014	Table 2, p. 3, row 5 report
Phase composition	Bi2FeTi4 + Fe2Ti + Bi (liquid) Bi2FeTi4: Bi 0.283, Fe 0.142, Ti 0.575; Fe2Ti: Bi 0, Fe 0.668, Ti 0.332; Bi (liquid): Bi 0.994, Fe 0.006, Ti 0	experimental	[1] Huang 2014	Table 2, p. 3, row 4 report
Phase composition	Bi2FeTi4 + FeTi + Fe2Ti Bi2FeTi4: Bi 0.275, Fe 0.15, Ti 0.575; FeTi: Bi 0, Fe 0.491, Ti 0.509; Fe2Ti: Bi 0, Fe 0.644, Ti 0.356	experimental	[1] Huang 2014	Table 2, p. 3, row 3 report
Phase composition	Bi2FeTi4 + FeTi + α-Ti Bi2FeTi4: Bi 0.279, Fe 0.143, Ti 0.578; FeTi: Bi 0, Fe 0.482, Ti 0.518; α-Ti: Bi 0.01, Fe 0.015, Ti 0.975	experimental	[1] Huang 2014	Table 2, p. 3, row 2 report
Phase composition	α-Ti + BiTi3 α-Ti: Bi 0.015, Fe 0.005, Ti 0.98; BiTi3: Bi 0.253, Fe 0.006, Ti 0.741	experimental	[1] Huang 2014	Table 2, p. 3, row 1 report

Crystal structure (4)

Crystal structure, Bi–Fe–Ti system
Property	Value	Phases / composition	Class	Source	Location
Lattice a printed: a	10.486 Å	Ti4Bi2Fe alloy: Fe 0.142857, Ti 0.571429	model	[1] Huang 2014 cites Richter 1997	Table 4, p. 5, row 5 report
Lattice a printed: a	10.533 Å	Ti4Bi2Fe alloy: Fe 0.142857, Ti 0.571429	DFT	[1] Huang 2014	Table 4, p. 5, row 6 report
Lattice c printed: c	4.933 Å	Ti4Bi2Fe alloy: Fe 0.142857, Ti 0.571429	model	[1] Huang 2014 cites Richter 1997	Table 4, p. 5, row 5 report
Lattice c printed: c	4.941 Å	Ti4Bi2Fe alloy: Fe 0.142857, Ti 0.571429	DFT	[1] Huang 2014	Table 4, p. 5, row 6 report

Sources

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

L.H. Huang, Q. Chen, Y. He, X.M. Tao, G.M. Cai, H.S. Liu et al., Thermodynamic modeling of Fe–Ti–Bi system assisted with key experiments, Calphad 46, 34-41 (2014). doi:10.1016/j.calphad.2014.01.001

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}
}