Fe–Nb–Ti system

35 accepted literature values from 1 paper(s) (experimental 31, model 4); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	31
model	4

Accepted values by property group
Property group	Values
invariant reaction	4
phase equilibrium	31

Invariant reactions (literature)

Invariant reactions reported in the literature for the Fe–Nb–Ti system (4)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1755.78	eutectic: L -> FeNb + (Nb, βTi) + Fe2(Nb, Ti)	L: Nb 0.5672, Ti 0.0148	model	[1] Wang 2011	Table 7, p. 8, row 4 report
1599.12	quasi-peritectic: L + FeNb -> (Nb, βTi) + Fe2(Nb, Ti)	L: Nb 0.2737, Ti 0.2787	model	[1] Wang 2011	Table 7, p. 8, row 3 report
1492	quasi-peritectic: L + Fe2(Nb, Ti) -> FeNb + FeTi	L: Nb 0.2005, Ti 0.3743	model	[1] Wang 2011	Table 7, p. 8, row 2 report
1483.36	eutectic: L -> FeNb + FeTi + (Nb, βTi)	L: Nb 0.2205, Ti 0.3919	model	[1] Wang 2011	Table 7, p. 8, row 1 report

Other properties

Phase equilibrium (31)

Phase equilibrium, Fe–Nb–Ti system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	1273.15	Fe2(Nb, Ti) + FeTi Fe2(Nb, Ti): Fe 0.6239, Nb 0.0902, Ti 0.2859; FeTi: Fe 0.4614, Nb 0.0462, Ti 0.4924	experimental	[1] Wang 2011	Table 1, p. 3, row 6 report
Phase composition	1273.15	Fe2(Nb, Ti) + αFe Fe2(Nb, Ti): Fe 0.7243, Nb 0.1179, Ti 0.1578; αFe: Fe 0.9682, Nb 0.0024, Ti 0.0294	experimental	[1] Wang 2011	Table 1, p. 3, row 9 report
Phase composition	1273.15	Fe2(Nb, Ti) + γFe Fe2(Nb, Ti): Fe 0.7229, Nb 0.216, Ti 0.0611; γFe: Fe 0.9877, Nb 0.0042, Ti 0.0081	experimental	[1] Wang 2011	Table 1, p. 3, row 10 report
Phase composition	1273.15	FeNb + (Nb, βTi) FeNb: Fe 0.4773, Nb 0.4051, Ti 0.1176; (Nb, βTi): Fe 0.0425, Nb 0.9084, Ti 0.0491	experimental	[1] Wang 2011	Table 1, p. 3, row 3 report
Phase composition	1273.15	FeNb + (Nb, βTi) + FeTi FeNb: Fe 0.4631, Nb 0.3302, Ti 0.2067; (Nb, βTi): Fe 0.0454, Nb 0.8538, Ti 0.1008; FeTi: Fe 0.368, Nb 0.0958, Ti 0.5362	experimental	[1] Wang 2011	Table 1, p. 3, row 4 report
Phase composition	1273.15	FeNb + Fe2(Nb, Ti) FeNb: Fe 0.6207, Nb 0.2398, Ti 0.1395; Fe2(Nb, Ti): Fe 0.5191, Nb 0.3571, Ti 0.1238	experimental	[1] Wang 2011	Table 1, p. 3, row 7 report
Phase composition	1273.15	FeNb + Fe2(Nb, Ti) FeNb: Fe 0.5303, Nb 0.3929, Ti 0.0768; Fe2(Nb, Ti): Fe 0.6249, Nb 0.2866, Ti 0.0885	experimental	[1] Wang 2011	Table 1, p. 3, row 8 report
Phase composition	1273.15	FeNb + Fe2(Nb, Ti) + FeTi FeNb: Fe 0.514, Nb 0.2859, Ti 0.2001; Fe2(Nb, Ti): Fe 0.571, Nb 0.1761, Ti 0.2529; FeTi: Fe 0.3917, Nb 0.0833, Ti 0.525	experimental	[1] Wang 2011	Table 1, p. 3, row 5 report
Phase composition	1273.15	FeTi + (Nb, βTi) FeTi: Fe 0.3664, Nb 0.0913, Ti 0.5423; (Nb, βTi): Fe 0.0987, Nb 0.1272, Ti 0.7741	experimental	[1] Wang 2011	Table 1, p. 3, row 2 report
Phase composition	1273.15	FeTi + (Nb, βTi) FeTi: Fe 0.3697, Nb 0.0951, Ti 0.5352; (Nb, βTi): Fe 0.089, Nb 0.2737, Ti 0.6373	experimental	[1] Wang 2011	Table 1, p. 3, row 1 report
Phase composition	1373.15	Fe2(Nb, Ti) + FeNb Fe2(Nb, Ti): Fe 0.6233, Nb 0.2788, Ti 0.0979; FeNb: Fe 0.5129, Nb 0.4, Ti 0.0871	experimental	[1] Wang 2011	Table 1, p. 3, row 18 report
Phase composition	1373.15	Fe2(Nb, Ti) + FeNb Fe2(Nb, Ti): Fe 0.6047, Nb 0.2387, Ti 0.1566; FeNb: Fe 0.5132, Nb 0.3433, Ti 0.1435	experimental	[1] Wang 2011	Table 1, p. 3, row 17 report
Phase composition	1373.15	Fe2(Nb, Ti) + FeTi Fe2(Nb, Ti): Fe 0.5981, Nb 0.1565, Ti 0.2454; FeTi: Fe 0.4145, Nb 0.0647, Ti 0.5208	experimental	[1] Wang 2011	Table 1, p. 3, row 15 report
Phase composition	1373.15	Fe2(Nb, Ti) + FeTi Fe2(Nb, Ti): Fe 0.627, Nb 0.0763, Ti 0.2967; FeTi: Fe 0.4446, Nb 0.0442, Ti 0.5112	experimental	[1] Wang 2011	Table 1, p. 3, row 16 report
Phase composition	1373.15	Fe2(Nb, Ti) + αFe Fe2(Nb, Ti): Fe 0.7266, Nb 0.1445, Ti 0.1289; αFe: Fe 0.9612, Nb 0.0066, Ti 0.0322	experimental	[1] Wang 2011	Table 1, p. 3, row 20 report
Phase composition	1373.15	Fe2(Nb, Ti) + αFe Fe2(Nb, Ti): Fe 0.7461, Nb 0.0847, Ti 0.1692; αFe: Fe 0.9624, Nb 0.0036, Ti 0.034	experimental	[1] Wang 2011	Table 1, p. 3, row 19 report
Phase composition	1373.15	Fe2(Nb, Ti) + γFe Fe2(Nb, Ti): Fe 0.7218, Nb 0.2193, Ti 0.0589; γFe: Fe 0.9796, Nb 0.0064, Ti 0.014	experimental	[1] Wang 2011	Table 1, p. 3, row 21 report
Phase composition	1373.15	FeNb + (Nb, βTi) FeNb: Fe 0.4839, Nb 0.406, Ti 0.1101; (Nb, βTi): Fe 0.046, Nb 0.9016, Ti 0.0524	experimental	[1] Wang 2011	Table 1, p. 3, row 12 report
Phase composition	1373.15	FeNb + (Nb, βTi) + FeTi FeNb: Fe 0.467, Nb 0.3621, Ti 0.1709; (Nb, βTi): Fe 0.0441, Nb 0.855, Ti 0.1009; FeTi: Fe 0.3693, Nb 0.0977, Ti 0.533	experimental	[1] Wang 2011	Table 1, p. 3, row 13 report
Phase composition	1373.15	FeNb + Fe2(Nb, Ti) + FeTi FeNb: Fe 0.4978, Nb 0.318, Ti 0.1842; Fe2(Nb, Ti): Fe 0.5794, Nb 0.2135, Ti 0.2071; FeTi: Fe 0.3862, Nb 0.0812, Ti 0.5326	experimental	[1] Wang 2011	Table 1, p. 3, row 14 report
Phase composition	1373.15	FeTi + (Nb, βTi) FeTi: Fe 0.3668, Nb 0.0913, Ti 0.5419; (Nb, βTi): Fe 0.0855, Nb 0.3785, Ti 0.536	experimental	[1] Wang 2011	Table 1, p. 3, row 11 report
Phase composition	1473.15	Fe2(Nb, Ti) + FeNb Fe2(Nb, Ti): Fe 0.6338, Nb 0.304, Ti 0.0622; FeNb: Fe 0.523, Nb 0.4191, Ti 0.0579	experimental	[1] Wang 2011	Table 1, p. 3, row 28 report
Phase composition	1473.15	Fe2(Nb, Ti) + FeTi Fe2(Nb, Ti): Fe 0.6598, Nb 0.0945, Ti 0.2457; FeTi: Fe 0.4822, Nb 0.0107, Ti 0.5071	experimental	[1] Wang 2011	Table 1, p. 3, row 27 report
Phase composition	1473.15	Fe2(Nb, Ti) + FeTi Fe2(Nb, Ti): Fe 0.6222, Nb 0.1914, Ti 0.1864; FeTi: Fe 0.4399, Nb 0.0487, Ti 0.5114	experimental	[1] Wang 2011	Table 1, p. 3, row 26 report
Phase composition	1473.15	Fe2(Nb, Ti) + αFe Fe2(Nb, Ti): Fe 0.7388, Nb 0.0919, Ti 0.1693; αFe: Fe 0.9515, Nb 0.0052, Ti 0.0433	experimental	[1] Wang 2011	Table 1, p. 3, row 29 report
Phase composition	1473.15	Fe2(Nb, Ti) + αFe Fe2(Nb, Ti): Fe 0.7262, Nb 0.1552, Ti 0.1186; αFe: Fe 0.9588, Nb 0.008, Ti 0.0332	experimental	[1] Wang 2011	Table 1, p. 3, row 30 report
Phase composition	1473.15	Fe2(Nb, Ti) + γFe Fe2(Nb, Ti): Fe 0.7282, Nb 0.2313, Ti 0.0405; γFe: Fe 0.9799, Nb 0.0109, Ti 0.0092	experimental	[1] Wang 2011	Table 1, p. 3, row 31 report
Phase composition	1473.15	FeNb + (Nb, βTi) FeNb: Fe 0.4738, Nb 0.3983, Ti 0.1279; (Nb, βTi): Fe 0.0502, Nb 0.8724, Ti 0.0774	experimental	[1] Wang 2011	Table 1, p. 3, row 24 report
Phase composition	1473.15	FeNb + (Nb, βTi) + FeTi FeNb: Fe 0.4566, Nb 0.3554, Ti 0.188; (Nb, βTi): Fe 0.0602, Nb 0.8102, Ti 0.1296; FeTi: Fe 0.3691, Nb 0.1008, Ti 0.5301	experimental	[1] Wang 2011	Table 1, p. 3, row 23 report
Phase composition	1473.15	FeNb + Fe2(Nb, Ti) + FeTi FeNb: Fe 0.5092, Nb 0.3448, Ti 0.146; Fe2(Nb, Ti): Fe 0.5886, Nb 0.2473, Ti 0.1641; FeTi: Fe 0.4038, Nb 0.0817, Ti 0.5145	experimental	[1] Wang 2011	Table 1, p. 3, row 25 report
Phase composition	1473.15	L + (Nb, βTi) L: Fe 0.1121, Nb 0.1409, Ti 0.747; (Nb, βTi): Fe 0.2443, Nb 0.0816, Ti 0.6741	experimental	[1] Wang 2011	Table 1, p. 3, row 22 report

Sources

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

C.P. Wang, J.P. Zheng, Y. Yu, H.F. Hu, X.J. Liu, Experimental investigation and thermodynamic calculation of the phase equilibria in the Fe–Nb–Ti ternary system, Materials Chemistry and Physics 130, 806-814 (2011). doi:10.1016/j.matchemphys.2011.07.071

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}
}