# Mg–Pr–Y system > Mg–Pr–Y system: 13 accepted literature values (invariant reaction 13) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/MG-PR-Y.html · Markdown: https://data.orchid-project.org/systems/MG-PR-Y.md 13 accepted literature values from 1 paper(s) (model 13); 0 calculated phase diagram(s). Data: [JSON](https://data.orchid-project.org/literature/systems/MG-PR-Y.json) · [CSV](https://data.orchid-project.org/systems/MG-PR-Y.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#MG-PR-Y) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/MG-PR-Y.html) · [Markdown](https://data.orchid-project.org/systems/MG-PR-Y.md) Table: Accepted values by evidence class | Evidence class | Values | |---|---:| | model | 13 | Table: Accepted values by property group | Property group | Values | |---|---:| | invariant reaction | 13 | ## Invariant reactions (literature) Table: Invariant reactions reported in the literature for the Mg–Pr–Y system (13) | T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote | |---:|---|---|---|---|---|---| | 1228 | eutectic: liq. -> MgM + bcc | | model | [1] Guo 2008 | Table 4, p. 6, row 1; `ORC-HKAGWKF5CP` | | | 1049 | eutectic: liq. -> MgM + Mg2Pr | | model | [1] Guo 2008 | Table 4, p. 6, row 2; `ORC-VSGKYVTMAD` | | | 1011 | quasi-peritectic: liq. + MgM -> Mg2Pr + Mg2Y | liq.: Mg 0.7204, Pr 0.0578, Y 0.2218 | model | [1] Guo 2008 | Table 4, p. 6, row 4; `ORC-QBFQGWYOAS` | | | 921 | quasi-peritectic: liq. + Mg2Pr -> Mg3Pr + Mg2Y | liq.: Mg 0.7934, Pr 0.0739, Y 0.1327 | model | [1] Guo 2008 | Table 4, p. 6, row 5; `ORC-OFLGWCIB3X` | | | 879 | eutectic: liq -> Mg3Pr + Mg5M | | model | [1] Guo 2008 | Table 4, p. 6, row 6; `ORC-PJSVR3S4KN` | | | 878 | quasi-peritectic: liq. + Mg2Y -> Mg3Pr + Mg5M | liq.: Mg 0.8294, Pr 0.0513, Y 0.1193 | model | [1] Guo 2008 | Table 4, p. 6, row 7; `ORC-LGCEXYMZKA` | | | 875 | quasi-peritectic: liq. + Mg2Y -> Mg24Y5 + Mg5M | liq.: Mg 0.8517, Pr 0.0176, Y 0.1307 | model | [1] Guo 2008 | Table 4, p. 6, row 8; `ORC-KESTKIDAAA` | | | 839 | quasi-peritectic: liq. + Mg3Pr -> Mg41Pr5 + Mg5M | liq.: Mg 0.903, Pr 0.0661, Y 0.0309 | model | [1] Guo 2008 | Table 4, p. 6, row 9; `ORC-I65WIDAXWK` | | | 834 | quasi-peritectic: liq. + Mg12Pr -> Mg41Pr5 + hcp | liq.: Mg 0.9304, Pr 0.0624, Y 0.0072 | model | [1] Guo 2008 | Table 4, p. 6, row 10; `ORC-XB6QGEWKWW` | | | 827 | quasi-peritectic: liq. + Mg24Y5 -> hcp + Mg5M | liq.: Mg 0.9083, Pr 0.0176, Y 0.0741 | model | [1] Guo 2008 | Table 4, p. 6, row 11; `ORC-23TBWJJGVL` | | | 825 | quasi-peritectic: bcc + hcp -> MgM + dhcp | | model | [1] Guo 2008 | Table 4, p. 6, row 13; `ORC-J6AXWP7PQB` | | | 824 | eutectic: liq -> Mg41Pr5 + hcp + Mg5M | liq: Mg 0.9126, Pr 0.0385, Y 0.0489 | model | [1] Guo 2008 | Table 4, p. 6, row 12; `ORC-Z2ECKLTBSQ` | | | 696 | quasi-peritectic: dhcp + hcp -> MgM + Pr2Y | | model | [1] Guo 2008 | Table 4, p. 6, row 14; `ORC-3BZHW6MZRU` | | ## Sources Reporting papers the values were read from (a value cited from another work names that work in its row). 1. Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008). [doi:10.1016/j.calphad.2007.05.007](https://doi.org/10.1016/j.calphad.2007.05.007) ## 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/).