# Fe–Ti–Zr system > Fe–Ti–Zr system: 6 accepted literature values (invariant reaction 6) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/FE-TI-ZR.html · Markdown: https://data.orchid-project.org/systems/FE-TI-ZR.md 6 accepted literature values from 1 paper(s) (model 6); 0 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/FE-TI-ZR.json) · [CSV](https://data.orchid-project.org/systems/FE-TI-ZR.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#FE-TI-ZR) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/FE-TI-ZR.html) · [Markdown](https://data.orchid-project.org/systems/FE-TI-ZR.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | model | 6 | Table: Accepted values by property group | Property group | Values | |---|---:| | invariant reaction | 6 | ## Invariant reactions (literature) Table: Invariant reactions reported in the literature for the Fe–Ti–Zr system (6) | T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote | |---:|---|---|---|---|---|---| | 1572 | L + FCC_A1 -> Fe23Zr6 + BCC_A2 | L: Fe 0.88, Ti 0.06; FCC_A1: Fe 0.96, Ti 0.02; Fe23Zr6: Fe 0.79, Ti 0; BCC_A2: Fe 0.95, Ti 0.03 | model | [1] Gierlotka 2017 | Table IV, p. 9, row 1; `ORC-HTXX5LH5WE` | | | 1565 | L + C14 -> C15 + FeTi | L: Fe 0.47, Ti 0.39; C14: Fe 0.66, Ti 0.27; C15: Fe 0.66, Ti 0.07; FeTi: Fe 0.5, Ti 0.43 | model | [1] Gierlotka 2017 | Table IV, p. 9, row 2; `ORC-BAD4XRX4OK` | | | 1564 | L + C15 -> C14 + Fe23Zr6 | L: Fe 0.85, Ti 0.09; C15: Fe 0.68, Ti 0.06; C14: Fe 0.67, Ti 0.25; Fe23Zr6: Fe 0.79, Ti 0 | model | [1] Gierlotka 2017 | Table IV, p. 9, row 3; `ORC-ZIKSSVGSN6` | | | 1551 | L -> C14 + Fe23Zr6 + BCC_A2 | L: Fe 0.86, Ti 0.09; C14: Fe 0.67, Ti 0.26; Fe23Zr6: Fe 0.79, Ti 0; BCC_A2: Fe 0.93, Ti 0.05 | model | [1] Gierlotka 2017 | Table IV, p. 9, row 4; `ORC-5IZTXD3ZNA` | | | 1363 | L + C15 -> FeZr2 + FeTi | L: Fe 0.31, Ti 0.27; C15: Fe 0.66, Ti 0.05; FeZr2: Fe 0.33, Ti 0.18; FeTi: Fe 0.5, Ti 0.41 | model | [1] Gierlotka 2017 | Table IV, p. 9, row 5; `ORC-MAYYNMWP2W` | | | 1247 | L + FeZr2 -> FeTi + BCC_A2 | L: Fe 0.21, Ti 0.32; FeZr2: Fe 0.33, Ti 0.21; FeTi: Fe 0.5, Ti 0.44; BCC_A2: Fe 0.11, Ti 0.35 | model | [1] Gierlotka 2017 | Table IV, p. 9, row 6; `ORC-H34B2KH2JG` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Wojciech Gierlotka, Cho-yu Lee, Thermodynamic description of hydrogen storage materials Cr–Ti–Zr and Fe–Ti–Zr, J. Mater. Res. 32, 1386-1396 (2017). [doi:10.1557/jmr.2017.78](https://doi.org/10.1557/jmr.2017.78) ## 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). https://doi.org/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). https://doi.org/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. ```bibtex @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} } ``` --- Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).