# Fe–Ni–P system > Fe–Ni–P system: 8 accepted literature values (invariant reaction 8) 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-NI-P.html · Markdown: https://data.orchid-project.org/systems/FE-NI-P.md 8 accepted literature values from 1 paper(s) (experimental 3, model 5); 0 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/FE-NI-P.json) · [CSV](https://data.orchid-project.org/systems/FE-NI-P.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#FE-NI-P) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/FE-NI-P.html) · [Markdown](https://data.orchid-project.org/systems/FE-NI-P.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | experimental | 3 | | model | 5 | Table: Accepted values by property group | Property group | Values | |---|---:| | invariant reaction | 8 | ## Invariant reactions (literature) Table: Invariant reactions reported in the literature for the Fe–Ni–P system (8) | T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote | |---:|---|---|---|---|---|---| | 1301.15 | quasi-peritectic: L + Ni5P2-H = Ni12P5-H + Ni5P2-L | L: Fe 0.045628, Ni 0.683832, P 0.27054 | model | [1] Miettinen 2015 | Table 4, p. 9, row 8; `ORC-Q7OFIKYXPT` | | | 1275.15 | quasi-peritectic: L + Ni12P5-H = Fe2P + Ni5P2-L | L: Fe 0.060296, Ni 0.657937, P 0.281767 | model | [1] Miettinen 2015 | Table 4, p. 9, row 7; `ORC-2EE6AMOSQ5` | | | 1273.15 | quasi-peritectic: L + bcc = fcc + Fe3P | L: Fe 0.485813, Ni 0.328899, P 0.185289 | experimental | [1] Miettinen 2015; _cites Vogel 1931_ [doi](https://doi.org/10.1002/srin.193101173) | Table 4, p. 9, row 5; `ORC-RIOGDF6PUS` | | | 1273.15 | quasi-peritectic: L + bcc = fcc + Fe3P | L: Fe 0.694196, Ni 0.099945, P 0.205859 | experimental | [1] Miettinen 2015; _cites Doan 1970_ [doi](https://doi.org/10.1007/bf02642026) | Table 4, p. 9, row 3; `ORC-WIGNGEVG2H` | | | 1272.15 | quasi-peritectic: L + bcc = fcc + Fe3P | L: Fe 0.733545, Ni 0.114242, P 0.152213 | model | [1] Miettinen 2015; _cites Gustafsson 1990_ | Table 4, p. 9, row 2; `ORC-23WKW7I4CR` | | | 1272.15 | quasi-peritectic: L + bcc = fcc + Fe3P | L: Fe 0.733647, Ni 0.104795, P 0.161557 | model | [1] Miettinen 2015 | Table 4, p. 9, row 1; `ORC-RRXKSQDURZ` | | | 1243.15 | quasi-peritectic: L + bcc = fcc + Fe3P | L: Fe 0.725937, Ni 0.106263, P 0.167801 | experimental | [1] Miettinen 2015; _cites Buchvald 1966_ | Table 4, p. 9, row 4; `ORC-PRCZNGU7KZ` | | | 1222.15 | eutectic: L = Fe2P + Fe3P + Ni5P2-L | L: Fe 0.121317, Ni 0.618352, P 0.260331 | model | [1] Miettinen 2015 | Table 4, p. 9, row 6; `ORC-T4X2OFNDZE` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Jyrki Miettinen, Gueorgui Vassilev, Thermodynamic Description of Ternary Fe-X-P Systems. Part 6: Fe-Ni-P, J. Phase Equilib. Diffus. 36, 78-87 (2015). [doi:10.1007/s11669-014-0358-y](https://doi.org/10.1007/s11669-014-0358-y) ## 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/).