Mn–Nd system

46 accepted literature values from 1 paper(s) (experimental 32, model 9, unspecified 5); 1 calculated phase diagram(s). 54 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (10) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	32
model	9
unspecified	5

Accepted values by property group
Property group	Values
invariant reaction	31
phase transition	3
phase equilibrium	12

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.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
MnNd-16Ron.tdb	M. Rong, L. Wang, J. Wang, C. Zhu, T. Chen, G. Rao, H. Zhou, J. Therm. Anal. Calorim., 126, 1437-45(2016). doi:10.1007/s10973-016-5636-y	`fe6d800f20476b6b436cb28224d1707ee14218f6c8e87ebe7b7d51b77dc71d94`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
MnNd-16Ron.tdb	1393.28	FCC_A1 (x(Nd) 8.000e-4) + BCC_A2 (x(Nd) 0.00287) + LIQUID (x(Nd) 0.0856)
MnNd-16Ron.tdb	1352.96	CUB_A13 (x(Nd) 0) + FCC_A1 (x(Nd) 0.001) + LIQUID (x(Nd) 0.11506)
MnNd-16Ron.tdb	1296.57	CUB_A13 (x(Nd) 0) + MN17ND2 (x(Nd) 0.10526) + LIQUID (x(Nd) 0.16104)
MnNd-16Ron.tdb	1296.57	CUB_A13 (x(Nd) 0) + MN17ND2 (x(Nd) 0.10526) + LIQUID (x(Nd) 0.16082)
MnNd-16Ron.tdb	1296.57	CUB_A13 (x(Nd) 0) + MN17ND2 (x(Nd) 0.10526) + LIQUID (x(Nd) 0.16031)
MnNd-16Ron.tdb	1211.54	MN17ND2 (x(Nd) 0.10526) + MN23ND6_D8A (x(Nd) 0.2069) + LIQUID (x(Nd) 0.31159)
MnNd-16Ron.tdb	1211.54	MN17ND2 (x(Nd) 0.10526) + MN23ND6_D8A (x(Nd) 0.2069) + LIQUID (x(Nd) 0.31196)
MnNd-16Ron.tdb	1211.54	MN17ND2 (x(Nd) 0.10526) + MN23ND6_D8A (x(Nd) 0.2069) + LIQUID (x(Nd) 0.31196)
MnNd-16Ron.tdb	1211.54	MN17ND2 (x(Nd) 0.10526) + MN23ND6_D8A (x(Nd) 0.2069) + LIQUID (x(Nd) 0.31106)
MnNd-16Ron.tdb	1115.9	MN23ND6_D8A (x(Nd) 0.2069) + MN2ND_C14 (x(Nd) 0.33333) + LIQUID (x(Nd) 0.48751)
MnNd-16Ron.tdb	1115.9	MN23ND6_D8A (x(Nd) 0.2069) + MN2ND_C14 (x(Nd) 0.33333) + LIQUID (x(Nd) 0.48833)
MnNd-16Ron.tdb	1115.9	MN23ND6_D8A (x(Nd) 0.2069) + MN2ND_C14 (x(Nd) 0.33333) + LIQUID (x(Nd) 0.48793)
MnNd-16Ron.tdb	1115.9	MN23ND6_D8A (x(Nd) 0.2069) + MN2ND_C14 (x(Nd) 0.33333) + LIQUID (x(Nd) 0.48834)
MnNd-16Ron.tdb	980	CUB_A13 (x(Nd) 0) + CBCC_A12 (x(Nd) 0) + MN17ND2 (x(Nd) 0.10526)
MnNd-16Ron.tdb	978.09	LIQUID (x(Nd) 0.74812) + BCC_A2 (x(Nd) 0.92174) + DHCP (x(Nd) 0.9627)
MnNd-16Ron.tdb	969.47	MN2ND_C14 (x(Nd) 0.33333) + LIQUID (x(Nd) 0.73698) + DHCP (x(Nd) 0.96115)
MnNd-16Ron.tdb	969.47	MN2ND_C14 (x(Nd) 0.33333) + LIQUID (x(Nd) 0.73724) + DHCP (x(Nd) 0.96118)
MnNd-16Ron.tdb	853.01	MN23ND6_D8A (x(Nd) 0.2069) + MN2ND_C14 (x(Nd) 0.33333) + DHCP (x(Nd) 0.97283)
MnNd-16Ron.tdb	853.01	MN23ND6_D8A (x(Nd) 0.2069) + MN2ND_C14 (x(Nd) 0.33333) + DHCP (x(Nd) 0.97288)
MnNd-16Ron.tdb	853.01	MN23ND6_D8A (x(Nd) 0.2069) + MN2ND_C14 (x(Nd) 0.33333) + DHCP (x(Nd) 0.97285)
MnNd-16Ron.tdb	753.03	MN17ND2 (x(Nd) 0.10526) + MN23ND6_D8A (x(Nd) 0.2069) + DHCP (x(Nd) 0.98291)
MnNd-16Ron.tdb	753.03	MN17ND2 (x(Nd) 0.10526) + MN23ND6_D8A (x(Nd) 0.2069) + DHCP (x(Nd) 0.98291)
MnNd-16Ron.tdb	753.03	MN17ND2 (x(Nd) 0.10526) + MN23ND6_D8A (x(Nd) 0.2069) + DHCP (x(Nd) 0.98293)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Mn–Nd system (31)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1411	metatectic/catatectic: δ-Mn -> L + γ-Mn		experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 17 report
1407	metatectic/catatectic: δ-Mn -> L + γ-Mn		unspecified	[1] Rong 2016 cites Wang 2013	Table 3, p. 6, row 16 report
1384.6	metatectic/catatectic: δ-Mn -> L + γ-Mn	δ-Mn: Nd 0.003; L: Nd 0.092; γ-Mn: Nd 0.001	model	[1] Rong 2016	Table 3, p. 6, row 18 report
1373	peritectic: L + γ-Mn -> β-Mn	β-Mn: Nd 0	experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 20 report
1360	peritectic: L + γ-Mn -> β-Mn	L: Nd 0.11; γ-Mn: Nd 0.001; β-Mn: Nd 0.001	model	[1] Rong 2016	Table 3, p. 6, row 21 report
1360	peritectic: L + γ-Mn -> β-Mn	β-Mn: Nd 0	unspecified	[1] Rong 2016 cites Wang 2013	Table 3, p. 6, row 19 report
1298	peritectic: L + β-Mn -> Mn17Nd2	L: Nd 0.219; β-Mn: Nd 0.001; Mn17Nd2: Nd 0.105	experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 14 report
1297.6	peritectic: L + β-Mn -> Mn17Nd2	L: Nd 0.161; β-Mn: Nd 0.001; Mn17Nd2: Nd 0.105	model	[1] Rong 2016	Table 3, p. 6, row 15 report
1213.8	peritectic: L + Mn17Nd2 -> Mn23Nd6	Mn17Nd2: Nd 0.105263; Mn23Nd6: Nd 0.206897	experimental	[1] Rong 2016	Table 3, p. 6, row 12 report
1213	peritectic: L + Mn17Nd2 -> Mn23Nd6	L: Nd 0.324; Mn17Nd2: Nd 0.105; Mn23Nd6: Nd 0.209	experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 11 report
1212.8	peritectic: L + Mn17Nd2 -> Mn23Nd6	L: Nd 0.312; Mn17Nd2: Nd 0.105; Mn23Nd6: Nd 0.207	model	[1] Rong 2016	Table 3, p. 6, row 13 report
1193	peritectic: L + Mn23Nd6 -> Mn2Nd	Mn23Nd6: Nd 0.207; Mn2Nd: Nd 0.333	unspecified	[1] Rong 2016 cites Mostafa 2013 doi	Table 3, p. 6, row 6 report
1135	metatectic/catatectic: β-Nd -> L + α-Nd		unspecified	[1] Rong 2016 cites Mostafa 2013 doi	Table 3, p. 6, row 22 report
1123	peritectic: L + Mn23Nd6 -> Mn2Nd	L: Nd 0.475; Mn23Nd6: Nd 0.209; Mn2Nd: Nd 0.34	experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 8 report
1116.4	peritectic: L + Mn23Nd6 -> Mn2Nd	Mn23Nd6: Nd 0.206897; Mn2Nd: Nd 0.333333	experimental	[1] Rong 2016	Table 3, p. 6, row 9 report
1116	peritectic: L + Mn23Nd6 -> Mn2Nd	L: Nd 0.491; Mn23Nd6: Nd 0.207; Mn2Nd: Nd 0.333	model	[1] Rong 2016	Table 3, p. 6, row 10 report
1093	peritectic: L + Mn23Nd6 -> Mn2Nd	L: Nd 0.488; Mn23Nd6: Nd 0.207; Mn2Nd: Nd 0.333	experimental	[1] Rong 2016 cites Makhalenko 1990	Table 3, p. 6, row 7 report
1001	metatectic/catatectic: β-Nd -> L + α-Nd	β-Nd: Nd 0.95; L: Nd 0.779; α-Nd: Nd 0.977	experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 23 report
981.4	metatectic/catatectic: β-Nd -> L + α-Nd		experimental	[1] Rong 2016	Table 3, p. 6, row 24 report
981	metatectic/catatectic: β-Nd -> L + α-Nd	β-Nd: Nd 0.923; L: Nd 0.755; α-Nd: Nd 0.964	model	[1] Rong 2016	Table 3, p. 6, row 25 report
973	eutectic: L -> Mn2Nd + α-Nd	Mn2Nd: Nd 0.333	unspecified	[1] Rong 2016 cites Mostafa 2013 doi	Table 3, p. 6, row 1 report
968.4	eutectic: L -> Mn2Nd + α-Nd	Mn2Nd: Nd 0.333333	experimental	[1] Rong 2016	Table 3, p. 6, row 4 report
968.1	eutectic: L -> Mn2Nd + α-Nd	L: Nd 0.739; Mn2Nd: Nd 0.333; α-Nd: Nd 0.961	model	[1] Rong 2016	Table 3, p. 6, row 5 report
968	eutectic: L -> Mn2Nd + α-Nd	L: Nd 0.73; Mn2Nd: Nd 0.333	experimental	[1] Rong 2016 cites Makhalenko 1990	Table 3, p. 6, row 2 report
958	eutectic: L -> Mn2Nd + α-Nd	L: Nd 0.722; Mn2Nd: Nd 0.333; α-Nd: Nd 0.977	experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 3 report
873	eutectoid: Mn2Nd -> Mn23Nd6 + α-Nd	Mn2Nd: Nd 0.34; Mn23Nd6: Nd 0.209; α-Nd: Nd 0.977	experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 27 report
853	eutectoid: Mn2Nd -> Mn23Nd6 + α-Nd	Mn2Nd: Nd 0.333; Mn23Nd6: Nd 0.207; α-Nd: Nd 0.973	model	[1] Rong 2016	Table 3, p. 6, row 28 report
853	eutectoid: Mn2Nd -> Mn23Nd6 + α-Nd	Mn2Nd: Nd 0.333; Mn23Nd6: Nd 0.207; α-Nd: Nd 0.999	experimental	[1] Rong 2016 cites Makhalenko 1990	Table 3, p. 6, row 26 report
773	eutectoid: Mn23Nd6 -> Mn17Nd2 + α-Nd	Mn23Nd6: Nd 0.209; Mn17Nd2: Nd 0.105; α-Nd: Nd 0.977	experimental	[1] Rong 2016 cites Lemoine 2010 doi	Table 3, p. 6, row 30 report
753	eutectoid: Mn23Nd6 -> Mn17Nd2 + α-Nd	Mn23Nd6: Nd 0.207; Mn17Nd2: Nd 0.105; α-Nd: Nd 0.999	experimental	[1] Rong 2016 cites Makhalenko 1990	Table 3, p. 6, row 29 report
753	eutectoid: Mn23Nd6 -> Mn17Nd2 + α-Nd	Mn23Nd6: Nd 0.207; Mn17Nd2: Nd 0.105; α-Nd: Nd 0.983	model	[1] Rong 2016	Table 3, p. 6, row 31 report

Other properties

Phase transition (3)

Phase transition, Mn–Nd system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	968.8 K	968.8	other: L <-> Mn2Nd + α-Nd alloy: Mn 0.7, Nd 0.3	experimental	[1] Rong 2016	Table 1, p. 3, row 28 report
Phase transition	969.4 K	969.4	other: L <-> Mn2Nd + α-Nd alloy: Mn 0.75, Nd 0.25	experimental	[1] Rong 2016	Table 1, p. 3, row 32 report
Phase transition	971.1 K	971.1	other: L <-> Mn2Nd + α-Nd alloy: Mn 0.8, Nd 0.2	experimental	[1] Rong 2016	Table 1, p. 3, row 35 report

Phase equilibrium (12)

Phase equilibrium, Mn–Nd system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	995.4	other: Mn30Nd70 liquid: Mn 0.3, Nd 0.7	experimental	[1] Rong 2016	Table 1, p. 3, row 12 report
Phase composition	1015.4	other: Mn20Nd80 (as-cast) liquid: Mn 0.2, Nd 0.8	experimental	[1] Rong 2016	Table 1, p. 3, row 9 report
Phase composition	1047.5	other: Mn35Nd65 liquid: Mn 0.35, Nd 0.65	experimental	[1] Rong 2016	Table 1, p. 3, row 14 report
Phase composition	1082.1	other: Mn40Nd60 liquid: Mn 0.4, Nd 0.6	experimental	[1] Rong 2016	Table 1, p. 3, row 16 report
Phase composition	1084.9	other: Mn15Nd85 liquid: Mn 0.15, Nd 0.85	experimental	[1] Rong 2016	Table 1, p. 3, row 6 report
Phase composition	1117.1	other: Mn45Nd55 liquid: Mn 0.45, Nd 0.55	experimental	[1] Rong 2016	Table 1, p. 3, row 18 report
Phase composition	1153.2	other: Mn50Nd50 liquid: Mn 0.5, Nd 0.5	experimental	[1] Rong 2016	Table 1, p. 3, row 21 report
Phase composition	1153.8	other: Mn10Nd90 liquid: Mn 0.1, Nd 0.9	experimental	[1] Rong 2016	Table 1, p. 3, row 3 report
Phase composition	1174.6	other: Mn55Nd45 liquid: Mn 0.55, Nd 0.45	experimental	[1] Rong 2016	Table 1, p. 3, row 24 report
Phase composition	1185.8	other: Mn60Nd40 (as-cast) liquid: Mn 0.6, Nd 0.4	experimental	[1] Rong 2016	Table 1, p. 3, row 27 report
Phase composition	1237.7	other: Mn70Nd30 liquid: Mn 0.7, Nd 0.3	experimental	[1] Rong 2016	Table 1, p. 3, row 31 report
Phase composition	1282.2	other: Mn75Nd25 (as-cast) liquid: Mn 0.75, Nd 0.25	experimental	[1] Rong 2016	Table 1, p. 3, row 34 report

Sources

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

Maohua Rong, Liya Wang, Jiang Wang, Chaofan Zhu, Taili Chen, Guanghui Rao et al., Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system, J Therm Anal Calorim 126, 1437-1445 (2016). doi:10.1007/s10973-016-5636-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). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi: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). doi: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). 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_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}
}