# C–Fe–Mo system

> C–Fe–Mo system: 23 accepted literature values (invariant reaction 23) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/C-FE-MO.html · Markdown: https://data.orchid-project.org/systems/C-FE-MO.md

23 accepted literature values from 1 paper(s) (model 23); 0 calculated phase diagram(s). 1 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/C-FE-MO.json) · [CSV](https://data.orchid-project.org/systems/C-FE-MO.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#C-FE-MO) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/C-FE-MO.html) · [Markdown](https://data.orchid-project.org/systems/C-FE-MO.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| model | 23 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 23 |

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the C–Fe–Mo system (23)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 2802 | L+MC1-x -> MC(h)+M2C | L: C 0.362539, Fe 0.008171, Mo 0.629291; MC1-x: C 0.395109, Fe 0.002245, Mo 0.602646; MC(h): C 0.374762, Fe 0, Mo 0.625238; M2C: C 0.325695, Fe 0.026011, Mo 0.648294; MC(η): C 0.374762, Fe 0, Mo 0.625238 | model | [1] Andersson 1988 | Table I, p. 10, row 1; `ORC-U57HJWPFGG` |  |
| 2196 | M2C+MC(h)+G -> MC1-x | M2C: C 0.331883, Fe 0.038371, Mo 0.629746; MC(h): C 0.409232, Fe 0, Mo 0.590768; MC1-x: C 0.431075, Fe 0.002777, Mo 0.566148; MC(η): C 0.409232, Fe 0, Mo 0.590768 | model | [1] Andersson 1988 | Table I, p. 10, row 3; `ORC-6FJRNMRV2M` |  |
| 1902 | L+bcc+M2C -> M6C | L: C 0.079434, Fe 0.450812, Mo 0.469755; bcc: C 6.900e-4, Fe 0.095775, Mo 0.903535; M2C: C 0.198389, Fe 0.171191, Mo 0.63042; M6C: C 0.142978, Fe 0.458794, Mo 0.398227 | model | [1] Andersson 1988 | Table I, p. 10, row 4; `ORC-AJWYTJFLZO` |  |
| 1808 | L+bcc -> σ+M6C | L: C 0.043845, Fe 0.526161, Mo 0.429994; bcc: C 2.230e-4, Fe 0.167367, Mo 0.83241; M6C: C 0.143041, Fe 0.45794, Mo 0.399018 | model | [1] Andersson 1988 | Table I, p. 10, row 5; `ORC-KNXX4PKCHP` |  |
| 1728 | L+σ -> R+M6C | L: C 0.02748, Fe 0.655314, Mo 0.317205; M6C: C 0.142846, Fe 0.466791, Mo 0.390363 | model | [1] Andersson 1988 | Table I, p. 10, row 6; `ORC-P7TZOGGMQK` |  |
| 1670 | L+R -> bcc+M6C | L: C 0.023128, Fe 0.733184, Mo 0.243688; bcc: C 7.540e-4, Fe 0.777891, Mo 0.221355; M6C: C 0.142833, Fe 0.473126, Mo 0.384041 | model | [1] Andersson 1988 | Table I, p. 10, row 7; `ORC-YZ3UOZXRJ6` |  |
| 1641 | R+σ+M6C -> μ | M6C: C 0.142836, Fe 0.448158, Mo 0.409007 | model | [1] Andersson 1988 | Table I, p. 10, row 8; `ORC-5SSGQ4ZHYM` |  |
| 1618 | L+bcc -> fcc+M6C | L: C 0.065251, Fe 0.819006, Mo 0.115744; bcc: C 0.005329, Fe 0.930444, Mo 0.064227; fcc: C 0.016726, Fe 0.926259, Mo 0.057015; M6C: C 0.14299, Fe 0.51293, Mo 0.34408 | model | [1] Andersson 1988 | Table I, p. 10, row 9; `ORC-OIDW7DOP7Y` |  |
| 1513 | M6C+σ -> bcc+μ | M6C: C 0.142821, Fe 0.402838, Mo 0.454341; bcc: C 0, Fe 0.066963, Mo 0.933037 | model | [1] Andersson 1988 | Table I, p. 10, row 10; `ORC-TFRF2DSAEZ` |  |
| 1474 | μ -> bcc+R+M6C | bcc: C 0, Fe 0.859611, Mo 0.140389; M6C: C 0.142722, Fe 0.443365, Mo 0.413913 | model | [1] Andersson 1988 | Table I, p. 10, row 11; `ORC-UJA3MCI7LC` |  |
| 1399 | L+fcc+G -> cem | L: C 0.17731, Fe 0.800646, Mo 0.022044; fcc: C 0.085741, Fe 0.909573, Mo 0.004686; cem: C 0.241029, Fe 0.749452, Mo 0.009519 | model | [1] Andersson 1988 | Table I, p. 10, row 12; `ORC-5UAURJXTWD` |  |
| 1365 | L+M6C -> fcc+M2C | L: C 0.168567, Fe 0.738537, Mo 0.092896; M6C: C 0.142933, Fe 0.490012, Mo 0.367056; fcc: C 0.06717, Fe 0.910798, Mo 0.022032; M2C: C 0.332343, Fe 0.129335, Mo 0.538322 | model | [1] Andersson 1988 | Table I, p. 10, row 13; `ORC-UC6G2YRIRV` |  |
| 1359 | L+G+M2C -> ξ | L: C 0.189376, Fe 0.724456, Mo 0.086167; M2C: C 0.33242, Fe 0.138625, Mo 0.528955; ξ: C 0.249831, Fe 0.518985, Mo 0.231184 | model | [1] Andersson 1988 | Table I, p. 10, row 14; `ORC-PVPLYYZ627` |  |
| 1350 | L+M2C -> fcc+ξ | L: C 0.173754, Fe 0.737564, Mo 0.088682; M2C: C 0.332234, Fe 0.13008, Mo 0.537686; fcc: C 0.071303, Fe 0.908613, Mo 0.020084; ξ: C 0.249904, Fe 0.515994, Mo 0.234103 | model | [1] Andersson 1988 | Table I, p. 10, row 15; `ORC-F4S4BN6LYF` |  |
| 1348 | L+G -> cem+ξ | L: C 0.187192, Fe 0.732325, Mo 0.080483; cem: C 0.249921, Fe 0.712554, Mo 0.037526; ξ: C 0.25018, Fe 0.521229, Mo 0.228591 | model | [1] Andersson 1988 | Table I, p. 10, row 16; `ORC-MNG4SPJAKA` |  |
| 1337 | L -> ξ+cem+fcc | L: C 0.180572, Fe 0.742089, Mo 0.077338; ξ: C 0.250059, Fe 0.522137, Mo 0.227804; cem: C 0.249945, Fe 0.714177, Mo 0.035878; fcc: C 0.077801, Fe 0.905763, Mo 0.016436 | model | [1] Andersson 1988 | Table I, p. 10, row 17; `ORC-7RRAOZMJVX` |  |
| 1183 | fcc+cem -> ξ+G | fcc: C 0.055807, Fe 0.938603, Mo 0.005589; cem: C 0.249858, Fe 0.732316, Mo 0.017827; ξ: C 0.250117, Fe 0.533713, Mo 0.21617 | model | [1] Andersson 1988 | Table I, p. 10, row 18; `ORC-ZEMBX3MIAA` |  |
| 1172 | bcc+μ+M6C -> Lave | bcc: C 0, Fe 0.948075, Mo 0.051925; M6C: C 0.142639, Fe 0.378235, Mo 0.479126 | model | [1] Andersson 1988 | Table I, p. 10, row 19; `ORC-ETGYOB4CWE` |  |
| 1083 | fcc+M6C -> bcc+M2C | fcc: C 0.016587, Fe 0.977875, Mo 0.005537; M6C: C 0.142714, Fe 0.410981, Mo 0.446305; bcc: C 7.010e-4, Fe 0.991754, Mo 0.007545; M2C: C 0.333298, Fe 0.042132, Mo 0.62457 | model | [1] Andersson 1988 | Table I, p. 10, row 20; `ORC-JYKO7OIKRC` |  |
| 1059 | fcc+M2C -> bcc+ξ | fcc: C 0.020194, Fe 0.975727, Mo 0.004079; M2C: C 0.333183, Fe 0.042948, Mo 0.62387; bcc: C 7.460e-4, Fe 0.993881, Mo 0.005373; ξ: C 0.249829, Fe 0.521434, Mo 0.228737 | model | [1] Andersson 1988 | Table I, p. 10, row 21; `ORC-YE42ZVK2CW` |  |
| 1012 | fcc+ξ -> bcc+G | fcc: C 0.031325, Fe 0.967311, Mo 0.001364; ξ: C 0.284576, Fe 0.515222, Mo 0.200202; bcc: C 8.840e-4, Fe 0.997544, Mo 0.001572 | model | [1] Andersson 1988 | Table I, p. 10, row 22; `ORC-LCM3WVUT2D` |  |
| 957 | bcc+ξ+M2C -> MC(shp) | bcc: C 2.330e-4, Fe 0.997435, Mo 0.002332; ξ: C 0.249943, Fe 0.527828, Mo 0.222229; M2C: C 0.333156, Fe 0.023764, Mo 0.64308; MC(shp): C 0.500099, Fe 0, Mo 0.499901 | model | [1] Andersson 1988 | Table I, p. 10, row 23; `ORC-FGVPXGJLUU` |  |
| 926 | bcc+ξ -> G+MC(shp) | bcc: C 2.790e-4, Fe 0.998789, Mo 9.320e-4; ξ: C 0.249831, Fe 0.542937, Mo 0.207233; MC(shp): C 0.500099, Fe 0, Mo 0.499901 | model | [1] Andersson 1988 | Table I, p. 10, row 24; `ORC-HDJXY3YBJL` |  |

## Sources

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

1. Jan-Olof Andersson, A thermodynamic evaluation of the FeMoC system, Calphad 12, 9-23 (1988). [doi:10.1016/0364-5916(88)90025-9](https://doi.org/10.1016/0364-5916%2888%2990025-9)

## 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=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).