Fe–Ni–Si system

32 accepted literature values from 1 paper(s) (experimental 14, unspecified 18); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	14
unspecified	18

Accepted values by property group
Property group	Values
invariant reaction	32

Invariant reactions (literature)

Invariant reactions reported in the literature for the Fe–Ni–Si system (32)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1650.15	peritectic: L+A2 ⇆ B2	L: Ni 0.137, Si 0.148; A2: Ni 0.137, Si 0.148; B2: Ni 0.137, Si 0.148; A: Ni 0.137, Si 0.148; B: Ni 0.137, Si 0.148; C: Ni 0.137, Si 0.148	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 1 report
1644.15	quasi-peritectic: L+A2 ⇆ A1 +B2	L: Ni 0.183, Si 0.135; A2: Ni 0.101, Si 0.086; A1: Ni 0.119, Si 0.087; B2: Ni 0.101, Si 0.086; A: Ni 0.183, Si 0.135; B: Ni 0.101, Si 0.086; C: Ni 0.119, Si 0.087; D: Ni 0.101, Si 0.086	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 2 report
1505.15	quasi-peritectic: L+ δ⇆γ + θ	L: Ni 0.68, Si 0.3; A: Ni 0.68, Si 0.3	experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 3 report
1499.15	quasi-peritectic: L+ δ⇆γ + θ	L: Ni 0.681, Si 0.296; δ: Ni 0.666, Si 0.333; γ: Ni 0.71, Si 0.286; θ: Ni 0.655, Si 0.335; A: Ni 0.681, Si 0.296; B: Ni 0.666, Si 0.333; C: Ni 0.71, Si 0.286; D: Ni 0.655, Si 0.335	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 4 report
1487.15	eutectic: L ⇆ B2 + θ	L: Ni 0.037, Si 0.306; B2: Ni 0.032, Si 0.28; θ: Ni 0.041, Si 0.325; A: Ni 0.037, Si 0.306; B: Ni 0.032, Si 0.28; C: Ni 0.041, Si 0.325	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 5 report
1481.15	eutectic: L ⇆ (FeSi)+ θ	L: Ni 0.021, Si 0.359; (FeSi): Ni 0.02, Si 0.494; θ: Ni 0.024, Si 0.336; A: Ni 0.021, Si 0.359; B: Ni 0.02, Si 0.494; C: Ni 0.024, Si 0.336	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 6 report
1439.15	peritectic: L+B2 ⇆γ		experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 7 report
1430.15	quasi-peritectic: L+ β3⇆ A1 + γ	L: Ni 0.78, Si 0.21; A: Ni 0.78, Si 0.21	experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 16 report
1423.15	eutectic: L ⇆ γ + θ		experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 11 report
1423.15	quasi-peritectic: L+B2 ⇆γ + θ	L: Ni 0.4, Si 0.29; A: Ni 0.4, Si 0.29	experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 9 report
1422.15	peritectic: L+B2 ⇆γ	L: Ni 0.267, Si 0.267; B2: Ni 0.16, Si 0.232; γ: Ni 0.245, Si 0.26; A: Ni 0.267, Si 0.267; B: Ni 0.16, Si 0.232; C: Ni 0.245, Si 0.26	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 8 report
1421.15	quasi-peritectic: L+B2 ⇆γ + θ	L: Ni 0.257, Si 0.273; B2: Ni 0.155, Si 0.239; γ: Ni 0.24, Si 0.262; θ: Ni 0.239, Si 0.328; A: Ni 0.257, Si 0.273; B: Ni 0.155, Si 0.239; C: Ni 0.24, Si 0.262; D: Ni 0.239, Si 0.328	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 10 report
1411.15	quasi-peritectic: L+B2 ⇆ A1 + γ	L: Ni 0.35, Si 0.21; A: Ni 0.35, Si 0.21	experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 13 report
1398.15	quasi-peritectic: L+B2 ⇆ A1 + γ		experimental	[1] Witusiewicz 2023	Table 4, p. 20, row 14 report
1390.15	other: L, γ⇆θ	L: Ni 0.478, Si 0.277; γ: Ni 0.478, Si 0.277; θ: Ni 0.491, Si 0.333; A: Ni 0.478, Si 0.277; B: Ni 0.478, Si 0.277; C: Ni 0.491, Si 0.333	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 12 report
1386.15	eutectic: L ⇆ A1 + γ		experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 23 report
1378.15	quasi-peritectic: L+B2 ⇆ A1 + γ	L: Ni 0.374, Si 0.225; B2: Ni 0.288, Si 0.17; A1: Ni 0.211, Si 0.189; γ: Ni 0.331, Si 0.253; A: Ni 0.374, Si 0.225; B: Ni 0.288, Si 0.17; C: Ni 0.211, Si 0.189; D: Ni 0.331, Si 0.253	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 15 report
1374.15	quasi-peritectic: L+ β3⇆ A1 + γ	L: Ni 0.723, Si 0.202; β3: Ni 0.749, Si 0.246; A1: Ni 0.763, Si 0.15; γ: Ni 0.714, Si 0.281; A: Ni 0.723, Si 0.202; B: Ni 0.749, Si 0.246; C: Ni 0.763, Si 0.15; D: Ni 0.714, Si 0.281	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 17 report
1357.15	peritectic: L+ (FeSi)+ (βFeSi2) ⇆ζ‘	L: Ni 0.21, Si 0.65; A: Ni 0.21, Si 0.65	experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 18 report
1353.55	peritectic: L+ (FeSi)+ (βFeSi2) ⇆ζ‘	L: Ni 0.19, Si 0.663; (FeSi): Ni 0.123, Si 0.531; (βFeSi2): Ni 0.043, Si 0.714; A: Ni 0.19, Si 0.663; B: Ni 0.123, Si 0.531; C: Ni 0.043, Si 0.714; D: Ni 0.172, Si 0.667; ζ': Ni 0.172, Si 0.667	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 19 report
1352.95	quasi-peritectic: L+ (βFeSi2) ⇆ (Si)+ ζ‘	L: Ni 0.191, Si 0.671; (βFeSi2): Ni 0.046, Si 0.717; (Si): Ni 4.000e-6, Si 0.9999; A: Ni 0.191, Si 0.671; B: Ni 0.046, Si 0.717; C: Ni 4.000e-6, Si 0.9999; D: Ni 0.175, Si 0.667; ζ': Ni 0.175, Si 0.667	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 22 report
1351.15	quasi-peritectic: L+ (βFeSi2) ⇆ (Si)+ ζ‘		experimental	[1] Witusiewicz 2023	Table 4, p. 20, row 21 report
1348.15	quasi-peritectic: L+ (βFeSi2) ⇆ (Si)+ ζ‘	L: Ni 0.25, Si 0.61; A: Ni 0.25, Si 0.61	experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 20 report
1331.15	eutectic: L ⇆ A1 + γ	L: Ni 0.528, Si 0.212; A1: Ni 0.47, Si 0.155; γ: Ni 0.6, Si 0.281; A: Ni 0.528, Si 0.212; B: Ni 0.47, Si 0.155; C: Ni 0.6, Si 0.281	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 24 report
1271.15	peritectic: L+ (FeSi) ⇆ (NiSi)	L: Ni 0.479, Si 0.5; (FeSi): Ni 0.356, Si 0.502; (NiSi): Ni 0.46, Si 0.5; A: Ni 0.479, Si 0.5; B: Ni 0.356, Si 0.502; C: Ni 0.46, Si 0.5	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 26 report
1249.15	peritectic: L+ (FeSi) ⇆ (NiSi)		experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 25 report
1249.15	quasi-peritectic: L+ (FeSi) ⇆(NiSi)+ ζ	L: Ni 0.43, Si 0.56; A: Ni 0.43, Si 0.56	experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 30 report
1248.15	quasi-peritectic: L+ (FeSi) ⇆(NiSi)+ θ	L: Ni 0.52, Si 0.46; A: Ni 0.52, Si 0.46	experimental	[1] Witusiewicz 2023 cites Ackerbauer 2009 doi	Table 4, p. 20, row 27 report
1247.15	quasi-peritectic: L+ (FeSi) ⇆(NiSi)+ θ	L: Ni 0.519, Si 0.457; (FeSi): Ni 0.353, Si 0.5; (NiSi): Ni 0.46, Si 0.5; θ: Ni 0.609, Si 0.387; A: Ni 0.519, Si 0.457; B: Ni 0.353, Si 0.5; C: Ni 0.46, Si 0.5; D: Ni 0.609, Si 0.387	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 28 report
1243.15	quasi-peritectic: (FeSi)+ ζ⇆ L+ ζ ‘	(FeSi): Ni 0.348, Si 0.513; ζ: Ni 0.275, Si 0.667; L: Ni 0.431, Si 0.554; A: Ni 0.348, Si 0.513; B: Ni 0.275, Si 0.667; C: Ni 0.431, Si 0.554; D: Ni 0.276, Si 0.667; ζ': Ni 0.276, Si 0.667	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 29 report
1242.55	quasi-peritectic: L+ (FeSi) ⇆(NiSi)+ ζ	L: Ni 0.431, Si 0.554; (FeSi): Ni 0.348, Si 0.512; (NiSi): Ni 0.465, Si 0.5; ζ: Ni 0.276, Si 0.667; A: Ni 0.431, Si 0.554; B: Ni 0.348, Si 0.512; C: Ni 0.465, Si 0.5; D: Ni 0.276, Si 0.667	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 31 report
1241.95	peritectic: L+ ζ ‘ ⇆ζ	L: Ni 0.425, Si 0.574; ζ: Ni 0.331, Si 0.667; A: Ni 0.425, Si 0.574; B: Ni 0.331, Si 0.667; C: Ni 0.331, Si 0.667; ζ': Ni 0.331, Si 0.667	unspecified	[1] Witusiewicz 2023	Table 4, p. 20, row 32 report

Sources

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

V.T. Witusiewicz, O. Stryzhyboroda, S. Vinke, K. Bobzin, U. Hecht, Experimental study and thermodynamic modelling of the ternary system Fe–Ni–Si with re-modelling of the constituent binary systems, Journal of Alloys and Compounds 935, 168118 (2023). doi:10.1016/j.jallcom.2022.168118

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}
}