Al–Cr–Mg system

21 accepted literature values from 1 paper(s) (experimental 16, model 2, DFT 2, unspecified 1); 0 calculated phase diagram(s).

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Accepted values by evidence class
Evidence class	Values
experimental	16
model	2
DFT	2
unspecified	1

Accepted values by property group
Property group	Values
phase equilibrium	16
formation	2
crystal structure	3

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Al–Cr–Mg system (2)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location	Quote
T (Al18Mg3Cr2)		-246.5 kJ/mol (basis unstated)	298.15	model			[1] Cui 2017	Table 3, p. 4, row 4 report
T (Al18Mg3Cr2)		-238.5 kJ/mol (basis unstated)	298.15	DFT			[1] Cui 2017	Table 3, p. 4, row 3 report

Other properties

Phase equilibrium (16)

Phase equilibrium, Al–Cr–Mg system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	673.15	AlCr2 + γ_L + Al4Cr + T + Al3Mg2 + fcc_A1 AlCr2: Al 0.381, Cr 0.618, Mg 4.900e-4; γ_L: Al 0.599, Cr 0.399, Mg 0.0015; Al4Cr: Al 0.795, Cr 0.205, Mg 4.900e-4; T: Al 0.775, Cr 0.087, Mg 0.138; Al3Mg2: Al 0.625, Cr 0.001, Mg 0.374; fcc_A1: Al 0.892, Cr 0.001, Mg 0.107	experimental	[1] Cui 2017	Table 5, p. 11, row 16 report
Phase composition	673.15	fcc_A1 + Al3Mg2 + T fcc_A1: Al 0.88, Cr 0, Mg 0.12; Al3Mg2: Al 0.619, Cr 0, Mg 0.381; T: Al 0.769, Cr 0.087, Mg 0.144	experimental	[1] Cui 2017	Table 5, p. 11, row 4 report
Phase composition	673.15	fcc_A1 + Al3Mg2 + T fcc_A1: Al 0.881, Cr 0, Mg 0.119; Al3Mg2: Al 0.618, Cr 0, Mg 0.382; T: Al 0.769, Cr 0.087, Mg 0.144	experimental	[1] Cui 2017	Table 5, p. 11, row 6 report
Phase composition	673.15	fcc_A1 + Al3Mg2 + T fcc_A1: Al 0.877, Cr 0, Mg 0.122; Al3Mg2: Al 0.618, Cr 0, Mg 0.382; T: Al 0.766, Cr 0.087, Mg 0.147	experimental	[1] Cui 2017	Table 5, p. 11, row 5 report
Phase composition	673.15	fcc_A1 + Al7Cr fcc_A1: Al 0.997, Cr 0.003, Mg 0; Al7Cr: Al 0.863, Cr 0.137, Mg 0	experimental	[1] Cui 2017	Table 5, p. 11, row 1 report
Phase composition	673.15	fcc_A1 + T fcc_A1: Al 0.909, Cr 0.001, Mg 0.09; T: Al 0.77, Cr 0.089, Mg 0.141	experimental	[1] Cui 2017	Table 5, p. 11, row 3 report
Phase composition	673.15	fcc_A1 + T + Al7Cr fcc_A1: Al 0.981, Cr 0.003, Mg 0.016; T: Al 0.782, Cr 0.09, Mg 0.129; Al7Cr: Al 0.859, Cr 0.139, Mg 0.002	experimental	[1] Cui 2017	Table 5, p. 11, row 2 report
Phase composition	673.15	γ_L + Al4Cr + Al7Cr + T + fcc_A1 γ_L: Al 0.674, Cr 0.326, Mg 1.000e-4; Al4Cr: Al 0.784, Cr 0.209, Mg 0.008; Al7Cr: Al 0.855, Cr 0.139, Mg 0.005; T: Al 0.778, Cr 0.086, Mg 0.136; fcc_A1: Al 0.905, Cr 0.00144, Mg 0.093	experimental	[1] Cui 2017	Table 5, p. 11, row 14 report
Phase composition	673.15	γ_L + Al4Cr + T + Al3Mg2 + fcc_A1 γ_L: Al 0.685, Cr 0.314, Mg 0.001; Al4Cr: Al 0.768, Cr 0.211, Mg 0.02; T: Al 0.777, Cr 0.0861, Mg 0.137; Al3Mg2: Al 0.619, Cr 6.000e-4, Mg 0.38; fcc_A1: Al 0.914, Cr 4.000e-4, Mg 0.086	experimental	[1] Cui 2017	Table 5, p. 11, row 15 report
Phase composition	723.15	fcc_A1 + Al3Mg2 + T fcc_A1: Al 0.823, Cr 0, Mg 0.177; Al3Mg2: Al 0.615, Cr 0, Mg 0.385; T: Al 0.767, Cr 0.088, Mg 0.144	experimental	[1] Cui 2017	Table 5, p. 11, row 8 report
Phase composition	723.15	fcc_A1 + Al3Mg2 + T fcc_A1: Al 0.864, Cr 0, Mg 0.136; Al3Mg2: Al 0.617, Cr 0, Mg 0.382; T: Al 0.768, Cr 0.088, Mg 0.144	experimental	[1] Cui 2017	Table 5, p. 11, row 7 report
Phase composition	723.15	fcc_A1 + Al7Cr fcc_A1: Al 0.996, Cr 0.004, Mg 0; Al7Cr: Al 0.861, Cr 0.139, Mg 0	experimental	[1] Cui 2017	Table 5, p. 11, row 10 report
Phase composition	723.15	fcc_A1 + T fcc_A1: Al 0.919, Cr 0.001, Mg 0.08; T: Al 0.773, Cr 0.089, Mg 0.139	experimental	[1] Cui 2017	Table 5, p. 11, row 9 report
Phase composition	723.15	fcc_A1 + T + Al7Cr fcc_A1: Al 0.988, Cr 0.002, Mg 0.01; T: Al 0.791, Cr 0.089, Mg 0.12; Al7Cr: Al 0.859, Cr 0.138, Mg 0.002	experimental	[1] Cui 2017	Table 5, p. 11, row 11 report
Phase composition	773.15	T + Liquid + Al3Mg2 T: Al 0.773, Cr 0.086, Mg 0.141	experimental	[1] Cui 2017	Table 5, p. 11, row 12 report
Phase composition	773.15	T + fcc_A1 + Liquid + Al3Mg2 T: Al 0.773, Cr 0.087, Mg 0.14; fcc_A1: Al 0.863, Cr 4.500e-4, Mg 0.136	experimental	[1] Cui 2017	Table 5, p. 11, row 13 report

Crystal structure (3)

Crystal structure, Al–Cr–Mg system
Property	Value	T (K)	Phases / composition	Class	Source	Location
lattice unspecified axis printed: Lattice parameters	14.5 Å	298.15	T (Al18Mg3Cr2) alloy: Cr 0.086957, Mg 0.130435	model	[1] Cui 2017 cites Kerimov 1987 doi	Table 3, p. 4, row 2 report
lattice unspecified axis printed: Lattice parameters	14.5 Å	298.15	T (Al18Mg3Cr2) alloy: Cr 0.086957, Mg 0.130435	unspecified	[1] Cui 2017 cites Ohnishi 2017	Table 3, p. 4, row 1 report
lattice unspecified axis printed: Lattice parameters	14.5 Å	298.15	T (Al18Mg3Cr2) alloy: Cr 0.086957, Mg 0.130435	DFT	[1] Cui 2017	Table 3, p. 4, row 3 report

Sources

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

Senlin Cui, In-Ho Jung, Junghwan Kim, Jinghua Xin, A coupled experimental and thermodynamic study of the Al-Cr and Al-Cr-Mg systems, Journal of Alloys and Compounds 698, 1038-1057 (2017). doi:10.1016/j.jallcom.2016.12.298

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). doi: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). doi: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.

@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}
}