# Fe–Pr system > Fe–Pr system: 0 accepted literature values (none) and 2 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/FE-PR.html · Markdown: https://data.orchid-project.org/systems/FE-PR.md 0 accepted literature values from 0 paper(s); 2 calculated phase diagram(s). 2 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV. Data: [JSON](https://data.orchid-project.org/literature/systems/FE-PR.json) · [CSV](https://data.orchid-project.org/systems/FE-PR.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#FE-PR) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#FE-PR/FePr-16Che.json) · [phases (6)](https://data.orchid-project.org/phases/pages/FE-PR.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/FE-PR.html) · [Markdown](https://data.orchid-project.org/systems/FE-PR.md) ## 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. Table: Assessments with a calculated phase diagram | TDB file | Assessment | SHA-256 | Links | |---|---|---|---| | FePr-16Che.tdb | T.L. Chen, J. Wang, M.H. Rong, G.H. Rao, H.Y. Zhou, Calphad, 55, 270-80(2016). [doi:10.1016/j.calphad.2016.10.004](https://doi.org/10.1016/j.calphad.2016.10.004) | `12e07b0584954755813f754ab92c974dfd5827fbbb187b805c46bbb6b4277929` | [viewer](https://orchid-project.org/phase-diagrams/#FE-PR/FePr-16Che.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/FePr-16Che.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/FePr-16Che.json) | | FePr-95Bae-LB.tdb | S. Baer, H.-J. Schaller, Z. Metallkd., 86, 388-94(1995). 2021.01.02: Modified for use with GES6. | `7d621fd2fe786c711e955b5f4436befcb199f91ba4a07fede93dd18df4145715` | [viewer](https://orchid-project.org/phase-diagrams/#FE-PR/FePr-95Bae-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/FePr-95Bae-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/FePr-95Bae-LB.json) | Table: Calculated three-phase invariants (model, mole fraction of the second component) | TDB file | T (K) | Phases at the invariant | |---|---:|---| | FePr-16Che.tdb | 1671.54 | BCC_A2 (x(Pr) 1.500e-4) + FCC_A1 (x(Pr) 3.000e-4) + LIQUID (x(Pr) 0.08948) | | FePr-16Che.tdb | 1671.54 | BCC_A2 (x(Pr) 1.500e-4) + FCC_A1 (x(Pr) 3.000e-4) + LIQUID (x(Pr) 0.08948) | | FePr-16Che.tdb | 1382.98 | FCC_A1 (x(Pr) 1.700e-4) + FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.47024) | | FePr-16Che.tdb | 1382.98 | FCC_A1 (x(Pr) 1.700e-4) + FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.47004) | | FePr-16Che.tdb | 1184.56 | BCC_A2 (x(Pr) 1.000e-5) + FCC_A1 (x(Pr) 3.000e-5) + FE17PR2 (x(Pr) 0.10526) | | FePr-16Che.tdb | 1067.99 | LIQUID (x(Pr) 0.92403) + BCC_A2 (x(Pr) 1) + DHCP (x(Pr) 1) | | FePr-16Che.tdb | 1067.99 | LIQUID (x(Pr) 0.92415) + BCC_A2 (x(Pr) 1) + DHCP (x(Pr) 1) | | FePr-16Che.tdb | 1067.99 | LIQUID (x(Pr) 0.92437) + DHCP (x(Pr) 1) + BCC_A2 (x(Pr) 1) | | FePr-16Che.tdb | 939.29 | FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.80246) + DHCP (x(Pr) 1) | | FePr-16Che.tdb | 939.29 | FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.80224) + DHCP (x(Pr) 1) | | FePr-16Che.tdb | 939.29 | FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.80249) + DHCP (x(Pr) 1) | | FePr-95Bae-LB.tdb | 1667.16 | FCC_A1 (x(Pr) 0) + BCC_A2 (x(Pr) 1.000e-5) + LIQUID (x(Pr) 0.09293) | | FePr-95Bae-LB.tdb | 1667.16 | FCC_A1 (x(Pr) 0) + BCC_A2 (x(Pr) 1.000e-5) + LIQUID (x(Pr) 0.09285) | | FePr-95Bae-LB.tdb | 1667.16 | FCC_A1 (x(Pr) 0) + BCC_A2 (x(Pr) 1.000e-5) + LIQUID (x(Pr) 0.09279) | | FePr-95Bae-LB.tdb | 1377.83 | FCC_A1 (x(Pr) 0) + FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.46639) | | FePr-95Bae-LB.tdb | 1377.83 | FCC_A1 (x(Pr) 0) + FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.4662) | | FePr-95Bae-LB.tdb | 1377.83 | FCC_A1 (x(Pr) 0) + FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.46596) | | FePr-95Bae-LB.tdb | 1185.01 | FCC_A1 (x(Pr) 0) + BCC_A2 (x(Pr) 2.000e-5) + FE17PR2 (x(Pr) 0.10526) | | FePr-95Bae-LB.tdb | 1185.01 | FCC_A1 (x(Pr) 0) + BCC_A2 (x(Pr) 2.000e-5) + FE17PR2 (x(Pr) 0.10526) | | FePr-95Bae-LB.tdb | 1067.96 | LIQUID (x(Pr) 0.92468) + BCC_A2 (x(Pr) 0.99999) + DHCP (x(Pr) 1) | | FePr-95Bae-LB.tdb | 1067.96 | LIQUID (x(Pr) 0.92479) + BCC_A2 (x(Pr) 0.99999) + DHCP (x(Pr) 1) | | FePr-95Bae-LB.tdb | 1067.96 | LIQUID (x(Pr) 0.92484) + BCC_A2 (x(Pr) 0.99999) + DHCP (x(Pr) 1) | | FePr-95Bae-LB.tdb | 938.01 | FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.81794) + DHCP (x(Pr) 1) | | FePr-95Bae-LB.tdb | 938.01 | FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.8178) + DHCP (x(Pr) 1) | | FePr-95Bae-LB.tdb | 938.01 | FE17PR2 (x(Pr) 0.10526) + LIQUID (x(Pr) 0.81803) + DHCP (x(Pr) 1) | Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/FE/FE-PR.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/FE/FE-PR.json) · [CALPHAD hull FePr-95Bae-LB](https://data.orchid-project.org/hulls/calphad-sgte/FE/FE-PR--FePr-95Bae-LB.json) ## 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-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/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). https://doi.org/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). 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_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} } ``` --- 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/).