Ir–Ti system

29 accepted literature values from 1 paper(s) (experimental 22, model 7); 1 calculated phase diagram(s). 3 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 (8) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	22
model	7

Accepted values by property group
Property group	Values
invariant reaction	29

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
IrTi-14Wan.tdb	C. Wang, Y. Guo, Y. Lu, X. Liu, J. Phase Equilib. Diffus., 35, 269-75(2014). doi:10.1007/s11669-014-0302-1	`b451b67f1b3cf0c9421113cbcb0362affc49d2ebcfd377aea7d941b660e2b5d9`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
IrTi-14Wan.tdb	2387.95	FCC_A1 (x(Ti) 0.09969) + IR3TI_L12 (x(Ti) 0.2267) + LIQUID (x(Ti) 0.27229)
IrTi-14Wan.tdb	2274.07	IR3TI_L12 (x(Ti) 0.27814) + LIQUID (x(Ti) 0.38052) + IRTI_B2 (x(Ti) 0.42736)
IrTi-14Wan.tdb	2023.98	IR3TI_L12 (x(Ti) 0.27516) + IRTI_L10 (x(Ti) 0.42908) + IRTI_B2 (x(Ti) 0.4349)
IrTi-14Wan.tdb	2023.98	IR3TI_L12 (x(Ti) 0.27516) + IRTI_L10 (x(Ti) 0.42908) + IRTI_B2 (x(Ti) 0.4349)
IrTi-14Wan.tdb	1789.1	IRTI_B2 (x(Ti) 0.64635) + IRTI3_A15 (x(Ti) 0.73194) + LIQUID (x(Ti) 0.78774)
IrTi-14Wan.tdb	1789.1	IRTI_B2 (x(Ti) 0.64635) + IRTI3_A15 (x(Ti) 0.73194) + LIQUID (x(Ti) 0.78774)
IrTi-14Wan.tdb	1740.19	IRTI3_A15 (x(Ti) 0.74889) + LIQUID (x(Ti) 0.81285) + BCC_A2 (x(Ti) 0.82957)
IrTi-14Wan.tdb	992.32	IRTI3_A15 (x(Ti) 0.75282) + BCC_A2 (x(Ti) 0.95881) + HCP_A3 (x(Ti) 0.99558)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ir–Ti system (29)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2588.15	peritectic: L + (Ir) -> TiIr3	L: Ir 0.695; (Ir): Ir 0.882; TiIr3: Ir 0.751	experimental	[1] Wang 2014 cites Eremenko 1970	Table 3, p. 5, row 6 report
2413.15	congruent melting: L -> γTiIr	γTiIr: Ir 0.5	experimental	[1] Wang 2014 cites Croeni 1962	Table 3, p. 5, row 1 report
2403.15	congruent melting: L -> γTiIr	γTiIr: Ir 0.476	model	[1] Wang 2014	Table 3, p. 5, row 4 report
2403.15	congruent melting: L -> γTiIr	γTiIr: Ir 0.5	experimental	[1] Wang 2014 cites Okamoto 1992 doi	Table 3, p. 5, row 3 report
2393.15	congruent melting: L -> γTiIr	γTiIr: Ir 0.5	experimental	[1] Wang 2014 cites Eremenko 1970	Table 3, p. 5, row 2 report
2388.15	peritectic: L + (Ir) -> TiIr3	L: Ir 0.74; (Ir): Ir 0.89; TiIr3: Ir 0.77	experimental	[1] Wang 2014 cites Okamoto 1992 doi	Table 3, p. 5, row 7 report
2388.15	peritectic: L + (Ir) -> TiIr3	L: Ir 0.697; (Ir): Ir 0.86; TiIr3: Ir 0.75	experimental	[1] Wang 2014 cites Croeni 1962	Table 3, p. 5, row 5 report
2388.15	peritectic: L + (Ir) -> TiIr3	L: Ir 0.728; (Ir): Ir 0.9; TiIr3: Ir 0.773	model	[1] Wang 2014	Table 3, p. 5, row 8 report
2274.15	eutectic: L -> γTiIr + TiIr3	L: Ir 0.619; γTiIr: Ir 0.573; TiIr3: Ir 0.722	model	[1] Wang 2014	Table 3, p. 5, row 12 report
2273.15	eutectic: L -> γTiIr + TiIr3	L: Ir 0.6; γTiIr: Ir 0.575; TiIr3: Ir 0.73	experimental	[1] Wang 2014 cites Okamoto 1992 doi	Table 3, p. 5, row 11 report
2273.15	eutectic: L -> γTiIr + TiIr3	L: Ir 0.6; γTiIr: Ir 0.584; TiIr3: Ir 0.695	experimental	[1] Wang 2014 cites Eremenko 1970	Table 3, p. 5, row 10 report
2273.15	eutectic: L -> γTiIr + TiIr3	L: Ir 0.6; γTiIr: Ir 0.575; TiIr3: Ir 0.75	experimental	[1] Wang 2014 cites Croeni 1962	Table 3, p. 5, row 9 report
2024.15	peritectoid: TiIr3 + γTiIr -> βTiIr	TiIr3: Ir 0.725; γTiIr: Ir 0.565; βTiIr: Ir 0.571	model	[1] Wang 2014	Table 3, p. 5, row 16 report
2023.15	peritectoid: TiIr3 + γTiIr -> βTiIr	TiIr3: Ir 0.75, Ti 0.25; γTiIr: Ir 0.5, Ti 0.5; βTiIr: Ir 0.5, Ti 0.5	experimental	[1] Wang 2014 cites Croeni 1962	Table 3, p. 5, row 13 report
2023.15	peritectoid: TiIr3 + γTiIr -> βTiIr	TiIr3: Ir 0.75, Ti 0.25; γTiIr: Ir 0.5, Ti 0.5; βTiIr: Ir 0.5, Ti 0.5	experimental	[1] Wang 2014 cites Eremenko 1970	Table 3, p. 5, row 14 report
2023.15	peritectoid: TiIr3 + γTiIr -> βTiIr	TiIr3: Ir 0.73; γTiIr: Ir 0.575; βTiIr: Ir 0.59	experimental	[1] Wang 2014 cites Okamoto 1992 doi	Table 3, p. 5, row 15 report
1793.15	peritectic: L + γTiIr -> Ti3Ir	L: Ir 0.227; γTiIr: Ir 0.384; Ti3Ir: Ir 0.25	experimental	[1] Wang 2014 cites Croeni 1962	Table 3, p. 5, row 17 report
1789.15	peritectic: L + γTiIr -> Ti3Ir	L: Ir 0.212; γTiIr: Ir 0.354; Ti3Ir: Ir 0.268	model	[1] Wang 2014	Table 3, p. 5, row 20 report
1788.15	peritectic: L + γTiIr -> Ti3Ir	L: Ir 0.23; γTiIr: Ir 0.35; Ti3Ir: Ir 0.27	experimental	[1] Wang 2014 cites Okamoto 1992 doi	Table 3, p. 5, row 19 report
1783.15	peritectic: L + γTiIr -> Ti3Ir	L: Ir 0.224; γTiIr: Ir 0.342; Ti3Ir: Ir 0.25	experimental	[1] Wang 2014 cites Eremenko 1970	Table 3, p. 5, row 18 report
1748.15	eutectic: L -> Ti3Ir + (βTi)	L: Ir 0.19; Ti3Ir: Ir 0.25; (βTi): Ir 0.149	experimental	[1] Wang 2014 cites Croeni 1962	Table 3, p. 5, row 21 report
1741.15	eutectic: L -> Ti3Ir + (βTi)	L: Ir 0.17; Ti3Ir: Ir 0.25; (βTi): Ir 0.15	experimental	[1] Wang 2014 cites Okamoto 1992 doi	Table 3, p. 5, row 23 report
1740.15	eutectic: L -> Ti3Ir + (βTi)	L: Ir 0.187; Ti3Ir: Ir 0.251; (βTi): Ir 0.17	model	[1] Wang 2014	Table 3, p. 5, row 24 report
1733.15	eutectic: L -> Ti3Ir + (βTi)	L: Ir 0.2; Ti3Ir: Ir 0.25; (βTi): Ir 0.163	experimental	[1] Wang 2014 cites Eremenko 1970	Table 3, p. 5, row 22 report
993.15	eutectoid: (βTi) -> (αTi) + Ti3Ir	(βTi): Ir 0.05; (αTi): Ir 0.01; Ti3Ir: Ir 0.25	experimental	[1] Wang 2014 cites Okamoto 1992 doi	Table 3, p. 5, row 28 report
992.15	eutectoid: (βTi) -> (αTi) + Ti3Ir	(βTi): Ir 0.041; (αTi): Ir 0.004; Ti3Ir: Ir 0.247	model	[1] Wang 2014	Table 3, p. 5, row 29 report
973.15	eutectoid: (βTi) -> (αTi) + Ti3Ir	Ti3Ir: Ir 0.25, Ti 0.75	experimental	[1] Wang 2014 cites Kandarpa 1977	Table 3, p. 5, row 27 report
773.15	eutectoid: (βTi) -> (αTi) + Ti3Ir	(βTi): Ir 0.05; Ti3Ir: Ir 0.25, Ti 0.75	experimental	[1] Wang 2014 cites Eremenko 1970	Table 3, p. 5, row 26 report
773.15	eutectoid: (βTi) -> (αTi) + Ti3Ir	(βTi): Ir 0.1; Ti3Ir: Ir 0.25, Ti 0.75	experimental	[1] Wang 2014 cites Croeni 1962	Table 3, p. 5, row 25 report

Sources

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

Cuiping Wang, Yihui Guo, Yong Lu, Xingjun Liu, Thermodynamic Assessment of the Ti-Ir System, J. Phase Equilib. Diffus. 35, 269-275 (2014). doi:10.1007/s11669-014-0302-1

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}
}