Cr–Nb system

204 accepted literature values from 3 paper(s) (experimental 155, model 14, DFT 31, unspecified 4); 7 calculated phase diagram(s). 38 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 (7) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	155
model	14
DFT	31
unspecified	4

Accepted values by property group
Property group	Values
invariant reaction	10
phase transition	74
phase equilibrium	77
formation	25
heat capacity / entropy / enthalpy	1
activity / EMF / Gibbs energy	2
crystal structure	15

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
CrNb-09Pav.tdb	J. Pavlu, J. Vrestal, M. Sob, Calphad, 33, 179-86(2009). doi:10.1016/j.calphad.2008.04.006	`73a70da7700dd8e219e8a46bf1f0010626a71166dff8e170600209727453abc1`	viewer · TDB · JSON
CrNb-14Sch.tdb	C. Schmetterer, A. Khvan, A. Jacob, B. Hallstedt, T. Markus J. Phase Equilib. Diffus., 35, 434-44(2014). doi:10.1007/s11669-014-0313-y	`b90da552cf8915412d03414adccc3e70299b4c2bccbfeb41f7d5fdc3831b29b9`	viewer · TDB · JSON
CrNb-15Lu.tdb	H.-J. Lu, W.-B. Wang, N. Zou, J.-Y. Shen, X.-G. Lu, Y.-L. He, Calphad, 50, 134-43(2015). doi:10.1016/j.calphad.2015.06.002	`b80dfce45f08a88cafcfdf284d475c993d6eb4b520f970e99cc9cd8aa07fcbcc`	viewer · TDB · JSON
CrNb-16Pen.tdb	Y. Peng, P. Zhou, M. Bu, W. Zhang, Y. Du, Calphad, 53, 10-19(2016). doi:10.1016/j.calphad.2016.02.004	`e22b1db4c4e94cba83eab6326dbc46f889fa67e527ceae8d5b54ef2208e0f339`	viewer · TDB · JSON
CrNb-17Laf.tdb	P. Lafaye, C. Toffolon-Masclet, J.-C. Crivello, J.-M. Joubert, Calphad, 57, 37-45(2017). doi:10.1016/j.calphad.2017.02.003	`22b23d29a6033b0964655ebe70410f0623ef58b9b95a3d70c98240666ecd12be`	viewer · TDB · JSON
CrNb-18Jia.tdb	Y. Jiang, S. Zomorodpoosh, I. Roslyakova, L. Zhang, Calphad, 62, 109-18(2018). doi:10.1016/j.calphad.2018.06.001	`b31829d9849c209382189a6cb1af1acdb30b3c3f952ec8cb0640cc4803218bb3`	viewer · TDB · JSON
CrNb-93Cos-LB.tdb	J.G. Costa Neto, S.G. Fries, H.L. Lukas, S. Garna, G. Effenberg, Calphad, 17, 219-28(1993). doi:10.1016/0364-5916(93)90001-R	`224f9134223c5058fbfe63d4b8172fef06efb0f8790a7898c981ac5879a3a084`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
CrNb-09Pav.tdb	1966.97	C14_LAVES (x(Nb) 0.34391) + C15_LAVES (x(Nb) 0.35117) + LIQUID (x(Nb) 0.43665)
CrNb-09Pav.tdb	1934.57	C15_LAVES (x(Nb) 0.35976) + LIQUID (x(Nb) 0.48047) + BCC_A2 (x(Nb) 0.75003)
CrNb-09Pav.tdb	1895.9	BCC_A2 (x(Nb) 0.06852) + LIQUID (x(Nb) 0.17774) + C14_LAVES (x(Nb) 0.30518)
CrNb-09Pav.tdb	1858.78	BCC_A2 (x(Nb) 0.06271) + C15_LAVES (x(Nb) 0.30524) + C14_LAVES (x(Nb) 0.30545)
CrNb-14Sch.tdb	1936.37	C15_LAVES (x(Nb) 0.36655) + LIQUID (x(Nb) 0.50601) + BCC_A2 (x(Nb) 0.75577)
CrNb-14Sch.tdb	1898.76	BCC_A2 (x(Nb) 0.06242) + LIQUID (x(Nb) 0.17061) + C15_LAVES (x(Nb) 0.30459)
CrNb-15Lu.tdb	1950.57	C15_LAVES (x(Nb) 0.35355) + LIQUID (x(Nb) 0.47805) + BCC_A2 (x(Nb) 0.74988)
CrNb-15Lu.tdb	1887.51	BCC_A2 (x(Nb) 0.0627) + LIQUID (x(Nb) 0.17256) + C15_LAVES (x(Nb) 0.31266)
CrNb-16Pen.tdb	1936.68	C15_LAVES (x(Nb) 0.35872) + LIQUID (x(Nb) 0.49867) + BCC_A2 (x(Nb) 0.75123)
CrNb-16Pen.tdb	1922.92	BCC_A2 (x(Nb) 0.06411) + LIQUID (x(Nb) 0.16915) + C15_LAVES (x(Nb) 0.30375)
CrNb-17Laf.tdb	1923.9	C15_LAVES (x(Nb) 0.35949) + LIQUID (x(Nb) 0.52058) + BCC_A2 (x(Nb) 0.76789)
CrNb-17Laf.tdb	1920.96	BCC_A2 (x(Nb) 0.03102) + LIQUID (x(Nb) 0.16996) + C15_LAVES (x(Nb) 0.31843)
CrNb-18Jia.tdb	1956.66	C15_LAVES (x(Nb) 0.37475) + LIQUID (x(Nb) 0.49984) + BCC_A2 (x(Nb) 0.74896)
CrNb-18Jia.tdb	1924.64	BCC_A2 (x(Nb) 0.07081) + LIQUID (x(Nb) 0.17569) + C15_LAVES (x(Nb) 0.30898)
CrNb-93Cos-LB.tdb	1924.49	C14_LAVES (x(Nb) 0.34945) + LIQUID (x(Nb) 0.47601) + BCC_A2 (x(Nb) 0.74599)
CrNb-93Cos-LB.tdb	1898.13	C14_LAVES (x(Nb) 0.34894) + C15_LAVES (x(Nb) 0.35477) + BCC_A2 (x(Nb) 0.75713)
CrNb-93Cos-LB.tdb	1892.65	BCC_A2 (x(Nb) 0.06955) + LIQUID (x(Nb) 0.17962) + C14_LAVES (x(Nb) 0.2919)
CrNb-93Cos-LB.tdb	1858.14	BCC_A2 (x(Nb) 0.06434) + C15_LAVES (x(Nb) 0.29058) + C14_LAVES (x(Nb) 0.29288)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CrNb-09Pav · CALPHAD hull CrNb-14Sch · CALPHAD hull CrNb-15Lu · CALPHAD hull CrNb-16Pen · CALPHAD hull CrNb-17Laf · CALPHAD hull CrNb-93Cos-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the Cr–Nb system (10)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1983	L = (Cr2Nb) + (Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 3, p. 2, row 4 report
1976	L = (Cr2Nb) + (Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 3, p. 2, row 10 report
1941	L = (Cr) + (Cr2Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 3, p. 2, row 9 report
1933	L = (Cr) + (Cr2Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 3, p. 2, row 3 report
1933	L = (Cr2Nb) + (Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 3, p. 2, row 2 report
1933	L = (Cr2Nb) + (Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 3, p. 2, row 6 report
1913	L = (Cr) + (Cr2Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 3, p. 2, row 1 report
1903	L = (Cr) + (Cr2Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 3, p. 2, row 7 report
1873	L = (Cr) + (Cr2Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 3, p. 2, row 5 report
1870	L = (Cr2Nb) + (Nb)	(Cr2Nb): Nb 0.333333	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 3, p. 2, row 8 report

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, Cr–Nb system (24)
Phase	Value	T (K)	Class	Source	Location
C15 Cr2Nb	-9.93 kJ/mol (basis unstated)	0	model	[1] Schmetterer 2014 cites Pavlu 2009 doi	Table 5, p. 6, row 1 report
C15 Cr2Nb	-7.44 kJ/mol (basis unstated)	0	DFT	[1] Schmetterer 2014 cites Hong 1999 doi	Table 5, p. 6, row 2 report
C15 Cr2Nb	-7.02 kJ/mol (basis unstated)	0	unspecified	[1] Schmetterer 2014 cites Ormeci 1996 doi	Table 5, p. 6, row 5 report
C15 Cr2Nb	-6.93 kJ/mol (basis unstated)	0	DFT	[1] Schmetterer 2014 cites Yao 2006	Table 5, p. 6, row 3 report
C15 Cr2Nb	-6.3 kJ/mol (basis unstated)	0	unspecified	[1] Schmetterer 2014 cites Kellou 2005	Table 5, p. 6, row 4 report
Cr2:Cr	26.4 kJ/mol-atom	0	DFT	[1] Schmetterer 2014 cites Sluiter 2006 doi	Table 6, p. 7, row 15 report
Cr2:Cr	27.29 kJ/mol-atom	0	DFT	[1] Schmetterer 2014 cites Pavlu 2009 doi	Table 6, p. 7, row 14 report
Cr2:Cr	30.56 kJ/mol-atom	0	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 12 report
Cr2:Cr	33.55 kJ/mol-atom	0	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 13 report
Cr2:Nb	-3.31 kJ/mol-atom	0	DFT	[1] Schmetterer 2014 cites Pavlu 2009 doi	Table 6, p. 7, row 3 report
Cr2:Nb	-2.48 kJ/mol-atom	0	DFT	[1] Schmetterer 2014 cites Hong 1999 doi	Table 6, p. 7, row 5 report
Cr2:Nb	-2.34 kJ/mol-atom	0	DFT	[1] Schmetterer 2014 cites Ormeci 1996 doi	Table 6, p. 7, row 8 report
Cr2:Nb	-2.31 kJ/mol-atom	0	DFT	[1] Schmetterer 2014 cites Yao 2006	Table 6, p. 7, row 6 report
Cr2:Nb	-2.1 kJ/mol-atom	0	DFT	[1] Schmetterer 2014 cites Kellou 2005	Table 6, p. 7, row 7 report
Cr2:Nb	-2.05 kJ/mol-atom	0	model	[1] Schmetterer 2014 cites Pavlu 2009 doi	Table 6, p. 7, row 4 report
Cr2:Nb	-1.83 kJ/mol-atom	0	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 1 report
Cr2:Nb	-1.72 kJ/mol-atom	0	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 2 report
Cr2Nb C14	-7 kJ/mol (basis unstated)	298.15	experimental	[2] Pavlů 2009 cites Martin 1970 doi	Table 4, p. 4, row 4 report
CrNb2 (C14)	76.52 kJ/mol (basis unstated)	0	DFT	[2] Pavlů 2009	Table 5, p. 4, row 1 report
CrNb2 (C15)	75.33 kJ/mol (basis unstated)	0	DFT	[2] Pavlů 2009	Table 5, p. 4, row 3 report
CrNb2 (C36)	76.31 kJ/mol (basis unstated)	0	DFT	[2] Pavlů 2009	Table 5, p. 4, row 5 report
Nb2:Cr	75.33 kJ/mol-atom	0	DFT	[1] Schmetterer 2014 cites Pavlu 2009 doi	Table 6, p. 7, row 11 report
Nb2:Cr	75.38 kJ/mol-atom	0	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 9 report
Nb2:Cr	75.39 kJ/mol-atom	0	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 10 report

Other properties

Phase transition (74)

Phase transition, Cr–Nb system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1853 K	1853	polymorphic: NbCr₂ transf. alloy: Cr 0.66, Nb 0.34	experimental	[3] Neto 1993 cites ref. 63Kor	Table 1, p. 3, row 14 report
Phase transition	1863 K	1863	other alloy: Cr 0.7, Nb 0.3	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 12 report
Phase transition	1873 K	1873	other alloy: Cr 0.75, Nb 0.25	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 11 report
Phase transition	1873 K	1873	other alloy: Cr 0.85, Nb 0.15	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 7 report
Phase transition	1873 K	1873	other alloy: Cr 0.8, Nb 0.2	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 9 report
Phase transition	1875 K	1875	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 61Gol	Table 1, p. 3, row 23 report
Phase transition	1875 K	1875	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 56Ely	Table 1, p. 3, row 51 report
Phase transition	1883 K	1883	other alloy: Cr 0.9, Nb 0.1	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 5 report
Phase transition	1893 K	1893	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 61Gol	Table 1, p. 3, row 24 report
Phase transition	1913 K	1913	other: Cr-solidus alloy: Nb 0	experimental	[3] Neto 1993 cites ref. 61Pan	Table 1, p. 3, row 27 report
Phase transition	1915 K	1915	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 61Pan	Table 1, p. 3, row 31 report
Phase transition	1923 K	1923	other alloy: Cr 0.667, Nb 0.333	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 31 report
Phase transition	1923 K	1923	other alloy: Cr 0.732, Nb 0.268	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 96 report
Phase transition	1923 K	1923	other alloy: Cr 0.55, Nb 0.45	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 15 report
Phase transition	1927 K	1927	other alloy: Cr 0.668, Nb 0.332	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 101 report
Phase transition	1929 K	1929	other alloy: Cr 0.697, Nb 0.303	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 98 report
Phase transition	1933 K	1933	other alloy: Cr 0.982, Nb 0.018	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 67 report
Phase transition	1933 K	1933	other alloy: Cr 0.6, Nb 0.4	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 13 report
Phase transition	1933 K	1933	other alloy: Cr 0.93, Nb 0.07	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 72 report
Phase transition	1933 K	1933	other alloy: Cr 0.843, Nb 0.157	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 91 report
Phase transition	1933 K	1933	other alloy: Cr 0.3, Nb 0.7	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 23 report
Phase transition	1933 K	1933	other alloy: Cr 0.901, Nb 0.099	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 74 report
Phase transition	1933 K	1933	other alloy: Cr 0.4, Nb 0.6	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 20 report
Phase transition	1933 K	1933	other alloy: Cr 0.836, Nb 0.164	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 76 report
Phase transition	1933 K	1933	other alloy: Cr 0.798, Nb 0.202	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 77 report
Phase transition	1933 K	1933	other alloy: Cr 0.5, Nb 0.5	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 17 report
Phase transition	1934 K	1934	other alloy: Cr 0.77, Nb 0.23	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 94 report
Phase transition	1935 K	1935	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 58Ere	Table 1, p. 3, row 39 report
Phase transition	1935 K	1935	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 61Pan	Table 1, p. 3, row 30 report
Phase transition	1935 K	1935	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 56Ely	Table 1, p. 3, row 50 report
Phase transition	1935 K	1935	other alloy: Cr 0.879, Nb 0.121	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 89 report
Phase transition	1941 K	1941	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 69Rud	Table 1, p. 3, row 11 report
Phase transition	1943 K	1943	other alloy: Cr 0.2, Nb 0.8	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 25 report
Phase transition	1943 K	1943	other alloy: Cr 0.95, Nb 0.05	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 2 report
Phase transition	1943 K	1943	other: Cr-solidus alloy: Nb 0	experimental	[3] Neto 1993 cites ref. 56Ely	Table 1, p. 3, row 44 report
Phase transition	1949 K	1949	other alloy: Cr 0.635, Nb 0.365	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 105 report
Phase transition	1949 K	1949	other alloy: Cr 0.493, Nb 0.507	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 109 report
Phase transition	1949 K	1949	other alloy: Cr 0.567, Nb 0.433	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 107 report
Phase transition	1951 K	1951	other alloy: Cr 0.653, Nb 0.347	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 103 report
Phase transition	1953 K	1953	other alloy: Cr 0.957, Nb 0.043	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 70 report
Phase transition	1953 K	1953	other alloy: Cr 0.991, Nb 0.009	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 65 report
Phase transition	1953 K	1953	other alloy: Cr 0.736, Nb 0.264	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 82 report
Phase transition	1954 K	1954	other alloy: Cr 0.9, Nb 0.1	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 47 report
Phase transition	1956 K	1956	congruent transformation: NbCr₂ Melting	experimental	[3] Neto 1993 cites ref. 56Ely	Table 1, p. 3, row 52 report
Phase transition	1958 K	1958	other alloy: Cr 0.7, Nb 0.3	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 58 report
Phase transition	1963 K	1963	other alloy: Cr 0.973, Nb 0.027	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 69 report
Phase transition	1963 K	1963	other alloy: Cr 0.666, Nb 0.334	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 84 report
Phase transition	1972 K	1972	other alloy: Cr 0.4, Nb 0.6	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 50 report
Phase transition	1973 K	1973	other alloy: Cr 0.975, Nb 0.025	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 1 report
Phase transition	1973 K	1973	other: Cr-solidus alloy: Nb 0	experimental	[3] Neto 1993 cites ref. 56Ely	Table 1, p. 3, row 45 report
Phase transition	1975 K	1975	other alloy: Cr 0.63, Nb 0.37	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 63 report
Phase transition	1976 K	1976	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 69Rud	Table 1, p. 3, row 10 report
Phase transition	1983 K	1983	other alloy: Cr 0.3, Nb 0.7	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 52 report
Phase transition	1983 K	1983	other alloy: Cr 0.462, Nb 0.538	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 78 report
Phase transition	1983 K	1983	other alloy: Cr 0.597, Nb 0.403	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 85 report
Phase transition	1983 K	1983	other alloy: Cr 0.518, Nb 0.482	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 86 report
Phase transition	1986 K	1986	congruent transformation: NbCr₂ Melting alloy: Cr 0.66, Nb 0.34	experimental	[3] Neto 1993 cites ref. 58Ell	Table 1, p. 3, row 40 report
Phase transition	1986 K	1986	eutectic: eutectic temp.	experimental	[3] Neto 1993 cites ref. 58Ere	Table 1, p. 3, row 38 report
Phase transition	1993 K	1993	other alloy: Cr 0.05, Nb 0.95	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 29 report
Phase transition	1996 K	1996	congruent transformation: NbCr₂ Melting	experimental	[3] Neto 1993 cites ref. 61Pan	Table 1, p. 3, row 34 report
Phase transition	2001 K	2001	congruent transformation	model	[3] Neto 1993	p. 7 report	The congruent melting temperature of the NbCrz phase was set to 2001 K.
Phase transition	2003 K	2003	congruent transformation: NbCr₂ Melting	experimental	[3] Neto 1993 cites ref. 69Rud	Table 1, p. 3, row 12 report
Phase transition	2003 K	2003	congruent transformation: NbCr₂ Melting alloy: Cr 0.66, Nb 0.34	experimental	[3] Neto 1993 cites ref. 63Kor	Table 1, p. 3, row 13 report
Phase transition	2013 K	2013	other: Cr-solidus alloy: Nb 0	experimental	[3] Neto 1993 cites ref. 61Pan	Table 1, p. 3, row 28 report
Phase transition	2016 K	2016	congruent transformation: NbCr₂ Melting alloy: Cr 0.66, Nb 0.34	experimental	[3] Neto 1993 cites ref. 59Mis	Table 1, p. 3, row 35 report
Phase transition	2027 K	2027	other alloy: Cr 0.942, Nb 0.058	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 87 report
Phase transition	2033 K	2033	other: Liquidus	experimental	[3] Neto 1993 cites ref. 58Ere	Table 1, p. 3, row 36 report
Phase transition	2043 K	2043	other: Cr-solidus alloy: Nb 0	experimental	[3] Neto 1993 cites ref. 58Ere	Table 1, p. 3, row 37 report
Phase transition	2046 K	2046	congruent transformation: NbCr₂ Melting	experimental	[3] Neto 1993 cites ref. 61Gol	Table 1, p. 3, row 25 report
Phase transition	2168 K	2168	other: Liquidus	experimental	[3] Neto 1993 cites ref. 56Ely	Table 1, p. 3, row 42 report
Phase transition	2179.5 K	2179.5	other: Liquidus	experimental	[3] Neto 1993 cites ref. 56Ely	Table 1, p. 3, row 41 report
Phase transition	2183 K	2183	other alloy: Cr 0.2, Nb 0.8	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 54 report
Phase transition	2305.5 K	2305.5	other: Liquidus	experimental	[3] Neto 1993 cites ref. 61Gol	Table 1, p. 3, row 18 report
Phase transition	2373 K	2373	other alloy: Cr 0.1, Nb 0.9	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 56 report

Phase equilibrium (77)

Phase equilibrium, Cr–Nb system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	1223	Nb + C15 Cr2Nb + Cr + C15 Cr2Nb (Nb-rich side) + C15 Cr2Nb (Cr-rich side) Nb: Cr 0.0944, Nb 0.9056; C15 Cr2Nb: Cr 0.6827, Nb 0.3173; Cr: Cr 0.9898, Nb 0.0102; C15 Cr2Nb (Nb-rich side): Cr 0.6357, Nb 0.3643; C15 Cr2Nb (Cr-rich side): Cr 0.6827, Nb 0.3173	model	[1] Schmetterer 2014 cites Thoma 1992 doi	Table 2, p. 2, row 5 report
Phase composition	1273	Nb + C15 Cr2Nb + Cr + C15 Cr2Nb (Nb-rich side) + C15 Cr2Nb (Cr-rich side) Nb: Cr 0.04, Nb 0.96; C15 Cr2Nb: Cr 0.7, Nb 0.3; Cr: Cr 0.98, Nb 0.02; C15 Cr2Nb (Nb-rich side): Cr 0.64, Nb 0.36; C15 Cr2Nb (Cr-rich side): Cr 0.7, Nb 0.3	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 2, p. 2, row 11 report
Phase composition	1373	Nb + C15 Cr2Nb + Cr + C15 Cr2Nb (Nb-rich side) + C15 Cr2Nb (Cr-rich side) Nb: Cr 0.0902, Nb 0.9098; C15 Cr2Nb: Cr 0.6749, Nb 0.3251; Cr: Cr 0.9872, Nb 0.0128; C15 Cr2Nb (Nb-rich side): Cr 0.6573, Nb 0.3427; C15 Cr2Nb (Cr-rich side): Cr 0.6749, Nb 0.3251	model	[1] Schmetterer 2014 cites Thoma 1992 doi	Table 2, p. 2, row 4 report
Phase composition	1473	Nb + C15 Cr2Nb + Cr + C15 Cr2Nb (Nb-rich side) + C15 Cr2Nb (Cr-rich side) Nb: Cr 0.091, Nb 0.909; C15 Cr2Nb: Cr 0.6779, Nb 0.3221; Cr: Cr 0.988, Nb 0.012; C15 Cr2Nb (Nb-rich side): Cr 0.645, Nb 0.355; C15 Cr2Nb (Cr-rich side): Cr 0.6779, Nb 0.3221	model	[1] Schmetterer 2014 cites Thoma 1992 doi	Table 2, p. 2, row 3 report
Phase composition	1573	Nb + C15 Cr2Nb + Cr + C15 Cr2Nb (Nb-rich side) + C15 Cr2Nb (Cr-rich side) Nb: Cr 0.1253, Nb 0.8747; C15 Cr2Nb: Cr 0.6795, Nb 0.3205; Cr: Cr 0.9851, Nb 0.0149; C15 Cr2Nb (Nb-rich side): Cr 0.6399, Nb 0.3601; C15 Cr2Nb (Cr-rich side): Cr 0.6795, Nb 0.3205	model	[1] Schmetterer 2014 cites Thoma 1992 doi	Table 2, p. 2, row 2 report
Phase composition	1673	Cr Cr: Cr 0.9686, Nb 0.0314	model	[1] Schmetterer 2014 cites Elyutin 1956	Table 2, p. 2, row 9 report
Phase composition	1673	Nb + C15 Cr2Nb + Cr + C15 Cr2Nb (Nb-rich side) + C15 Cr2Nb (Cr-rich side) Nb: Cr 0.1437, Nb 0.8563; C15 Cr2Nb: Cr 0.6804, Nb 0.3196; Cr: Cr 0.9754, Nb 0.0246; C15 Cr2Nb (Nb-rich side): Cr 0.6359, Nb 0.3641; C15 Cr2Nb (Cr-rich side): Cr 0.6804, Nb 0.3196	model	[1] Schmetterer 2014 cites Thoma 1992 doi	Table 2, p. 2, row 1 report
Phase composition	1773	Nb + Cr Nb: Cr 0.125, Nb 0.875; Cr: Cr 0.958, Nb 0.042	model	[1] Schmetterer 2014 cites Elyutin 1956	Table 2, p. 2, row 8 report
Phase composition	1823	Cr Cr: Cr 0.9375, Nb 0.0625	model	[1] Schmetterer 2014 cites Elyutin 1956	Table 2, p. 2, row 7 report
Phase composition	1873	Cr Cr: Cr 0.9, Nb 0.1	model	[1] Schmetterer 2014 cites Elyutin 1956	Table 2, p. 2, row 6 report
Phase composition	1887.4	other liquid: Cr 0.456, Nb 0.544	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 35 report
Phase composition	1905	other liquid: Cr 0.496, Nb 0.504	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 46 report
Phase composition	1918	other liquid: Cr 0.8, Nb 0.2	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 10 report
Phase composition	1925	other liquid: Cr 0.807, Nb 0.193	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 93 report
Phase composition	1927	other liquid: Cr 0.887, Nb 0.113	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 34 report
Phase composition	1933	Nb Nb: Cr 0.2, Nb 0.8	model	[1] Schmetterer 2014 cites Elyutin 1956	Table 2, p. 2, row 10 report
Phase composition	1934	Nb + C15 Cr2Nb + Cr-rich liquid phase + C15 Cr2Nb (Nb-rich side) + C15 Cr2Nb (Cr-rich side) + Cr-rich liquid (a) Nb: Cr 0.25, Nb 0.75; C15 Cr2Nb: Cr 0.68, Nb 0.32; Cr-rich liquid phase: Cr 0.78, Nb 0.22; C15 Cr2Nb (Nb-rich side): Cr 0.64, Nb 0.36; C15 Cr2Nb (Cr-rich side): Cr 0.68, Nb 0.32; Cr-rich liquid (a): Cr 0.78, Nb 0.22	model	[1] Schmetterer 2014 cites Bhatt 2000 doi	Table 2, p. 2, row 12 report
Phase composition	1938	other liquid: Cr 0.667, Nb 0.333	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 32 report
Phase composition	1948	other liquid: Cr 0.93, Nb 0.07	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 73 report
Phase composition	1948	other liquid: Cr 0.6, Nb 0.4	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 14 report
Phase composition	1949	other liquid: Cr 0.493, Nb 0.507	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 110 report
Phase composition	1958	other liquid: Cr 0.5, Nb 0.5	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 18 report
Phase composition	1962	other liquid: Cr 0.77, Nb 0.23	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 95 report
Phase composition	1963	other liquid: Cr 0.548, Nb 0.452	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 45 report
Phase composition	1969.3	other liquid: Cr 0.387, Nb 0.613	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 36 report
Phase composition	1973	other liquid: Cr 0.55, Nb 0.45	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 16 report
Phase composition	1974	other liquid: Cr 0.941, Nb 0.059	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 33 report
Phase composition	1975	other liquid: Cr 0.843, Nb 0.157	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 92 report
Phase composition	1978	other liquid: Cr 0.736, Nb 0.264	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 83 report
Phase composition	1983	other liquid: Cr 0.85, Nb 0.15	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 8 report
Phase composition	1986	other liquid: Cr 0.9, Nb 0.1	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 48 report
Phase composition	1988	other liquid: Cr 0.63, Nb 0.37	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 64 report
Phase composition	1990	other liquid: Cr 0.732, Nb 0.268	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 97 report
Phase composition	1990	other liquid: Cr 0.567, Nb 0.433	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 108 report
Phase composition	1991	other liquid: Cr 0.65, Nb 0.35	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 62 report
Phase composition	1991	other liquid: Cr 0.7, Nb 0.3	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 59 report
Phase composition	1993	other liquid: Cr 0.957, Nb 0.043	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 71 report
Phase composition	1993	other liquid: Cr 0.415, Nb 0.585	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 80 report
Phase composition	1995	other liquid: Cr 0.67, Nb 0.33	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 61 report
Phase composition	1997	other liquid: Cr 0.68, Nb 0.32	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 60 report
Phase composition	2002	other liquid: Cr 0.4, Nb 0.6	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 51 report
Phase composition	2002	other liquid: Cr 0.879, Nb 0.121	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 90 report
Phase composition	2003	other liquid: Cr 0.45, Nb 0.55	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 19 report
Phase composition	2003	other liquid: Cr 0.697, Nb 0.303	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 99 report
Phase composition	2005	other liquid: Cr 0.675, Nb 0.325	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 100 report
Phase composition	2007	other liquid: Cr 0.668, Nb 0.332	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 102 report
Phase composition	2010	other liquid: Cr 0.635, Nb 0.365	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 106 report
Phase composition	2011	other liquid: Cr 0.653, Nb 0.347	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 104 report
Phase composition	2013	other liquid: Cr 0.593, Nb 0.407	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 44 report
Phase composition	2013.3	other liquid: Cr 0.337, Nb 0.663	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 37 report
Phase composition	2018	other liquid: Cr 0.792, Nb 0.208	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 42 report
Phase composition	2030.5	other: Cr-liquidus liquid: Nb 0	experimental	[3] Neto 1993 cites ref. 61Pan	Table 1, p. 3, row 26 report
Phase composition	2033	other liquid: Cr 0.9, Nb 0.1	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 6 report
Phase composition	2033	other liquid: Cr 0.462, Nb 0.538	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 79 report
Phase composition	2042	other liquid: Cr 0.85, Nb 0.15	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 49 report
Phase composition	2043	other liquid: Cr 0.982, Nb 0.018	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 68 report
Phase composition	2043	other liquid: Cr 0.901, Nb 0.099	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 75 report
Phase composition	2047	other liquid: Cr 0.665, Nb 0.335	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 43 report
Phase composition	2048	other liquid: Cr 0.4, Nb 0.6	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 21 report
Phase composition	2061	other liquid: Cr 0.3, Nb 0.7	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 53 report
Phase composition	2063	other liquid: Cr 0.925, Nb 0.075	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 4 report
Phase composition	2073	other liquid: Cr 0.991, Nb 0.009	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 66 report
Phase composition	2079	other liquid: Cr 0.942, Nb 0.058	experimental	[1] Schmetterer 2014 cites Pan 1961	Table 4, p. 5, row 88 report
Phase composition	2093	other liquid: Cr 0.35, Nb 0.65	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 22 report
Phase composition	2103	other liquid: Cr 0.95, Nb 0.05	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 3 report
Phase composition	2108	other liquid: Cr 0.3, Nb 0.7	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 24 report
Phase composition	2127.5	other liquid: Cr 0.196, Nb 0.804	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 38 report
Phase composition	2133	other liquid: Cr 0.341, Nb 0.659	experimental	[1] Schmetterer 2014 cites Eremenko 1958	Table 4, p. 5, row 81 report
Phase composition	2168.5	other liquid: Cr 0.158, Nb 0.842	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 39 report
Phase composition	2173	other liquid: Cr 0.2, Nb 0.8	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 26 report
Phase composition	2223	other liquid: Cr 0.15, Nb 0.85	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 27 report
Phase composition	2313	other liquid: Cr 0.1, Nb 0.9	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 28 report
Phase composition	2323.3	other liquid: Cr 0.096, Nb 0.904	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 40 report
Phase composition	2333	other liquid: Cr 0.05, Nb 0.95	experimental	[1] Schmetterer 2014 cites Elyutin 1956	Table 4, p. 5, row 30 report
Phase composition	2372	other liquid: Cr 0.2, Nb 0.8	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 55 report
Phase composition	2521.9	other liquid: Cr 0.045, Nb 0.955	experimental	[1] Schmetterer 2014 cites Goldschmidt 1961 doi	Table 4, p. 5, row 41 report
Phase composition	2630	other liquid: Cr 0.1, Nb 0.9	experimental	[1] Schmetterer 2014 cites Rudy 1969	Table 4, p. 5, row 57 report

Formation (1)

Formation, Cr–Nb system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Entropy of formation printed: ΔfS	-0.5 unknown ± 0.6	298.15	C15 Cr2Nb alloy: Cr 0.667, Nb 0.333	experimental	[1] Schmetterer 2014 cites Martin 1970 doi	Table 5, p. 6, row 9 report

Heat capacity / entropy / enthalpy (1)

Heat capacity / entropy / enthalpy, Cr–Nb system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Heat capacity printed: Cp	72.59 J/mol (basis unstated)/K	298.15	C15 Cr2Nb alloy: Cr 0.667, Nb 0.333	experimental	[1] Schmetterer 2014 cites Martin 1970 doi	Table 5, p. 6, row 8 report

Activity / EMF / Gibbs energy (2)

Activity / EMF / Gibbs energy, Cr–Nb system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Activity Cr printed: Activity of Cr	0.42 1	1472	C15 Cr2Nb + (Nb) alloy: Cr 0.47, Nb 0.53	experimental	[1] Schmetterer 2014 cites Martin 1970 doi	Table 5, p. 6, row 7 report
Activity Cr printed: Activity of Cr	0.41 1	1472	C15 Cr2Nb + (Nb) alloy: Cr 0.3, Nb 0.7	experimental	[1] Schmetterer 2014 cites Martin 1970 doi	Table 5, p. 6, row 6 report

Crystal structure (15)

Crystal structure, Cr–Nb system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a printed: a	6.93 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014 cites Pavlu 2009 doi	Table 6, p. 7, row 3 report
Lattice a printed: a	6.94 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014 cites Kellou 2005	Table 6, p. 7, row 7 report
Lattice a printed: a	6.66 Å	0	UNKNOWN alloy: Nb 0	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 13 report
Lattice a printed: a	7.51 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 9 report
Lattice a printed: a	6.93 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014 cites Yao 2006	Table 6, p. 7, row 6 report
Lattice a printed: a	6.82 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014 cites Hong 1999 doi	Table 6, p. 7, row 5 report
Lattice a printed: a	6.58 Å	0	UNKNOWN alloy: Nb 0	DFT	[1] Schmetterer 2014 cites Pavlu 2009 doi	Table 6, p. 7, row 14 report
Lattice a printed: a	7.5 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 10 report
Lattice a printed: a	6.93 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 2 report
Lattice a printed: a	6.64 Å	0	UNKNOWN alloy: Nb 0	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 12 report
Lattice a printed: a	6.96 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014	Table 6, p. 7, row 1 report
Lattice a printed: a	7.5 Å	0	UNKNOWN	DFT	[1] Schmetterer 2014 cites Pavlu 2009 doi	Table 6, p. 7, row 11 report
Lattice a	3.3 Å	298.15	(Nb) (Nb): Cr 0.244, Nb 0.756	unspecified	[1] Schmetterer 2014 cites Straumanis 2014	Table 1, p. 2, row 4 report
Lattice a	6.991 Å	298.15	Cr2Nb LT Cr2Nb LT: Cr 0.7, Nb 0.3	experimental	[1] Schmetterer 2014 cites Blazina 1986	Table 1, p. 2, row 2 report
Lattice a	2.91 Å	1353	(Cr) (Cr): Cr 0.944, Nb 0.056	unspecified	[1] Schmetterer 2014	Table 1, p. 2, row 1 report

Sources

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

Clemens Schmetterer, Alexandra Khvan, Aurélie Jacob, Bengt Hallstedt, Torsten Markus, A New Theoretical Study of the Cr-Nb System, J. Phase Equilib. Diffus. 35, 434-444 (2014). doi:10.1007/s11669-014-0313-y
J. Pavlů, J. Vřešt’ál, M. Šob, Re-modeling of Laves phases in the Cr–Nb and Cr–Ta systems using first-principles results, Calphad 33, 179-186 (2009). doi:10.1016/j.calphad.2008.04.006
Joaquim G. Costa Neto, Suzana G. Fries, Hans Leo Lukas, Sérgio Gama, Günter Effenberg, Thermodynamic optimisation of the Nb-Cr system, Calphad 17, 219-228 (1993). doi:10.1016/0364-5916(93)90001-r

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}
}