Al–Co–Nb system

111 accepted literature values from 1 paper(s) (experimental 53, model 58); 0 calculated phase diagram(s). 1 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

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Accepted values by evidence class
Evidence class	Values
experimental	53
model	58

Accepted values by property group
Property group	Values
invariant reaction	35
phase transition	10
phase equilibrium	66

Invariant reactions (literature)

Invariant reactions reported in the literature for the Al–Co–Nb system (35)
T (K)	Reaction / phases	Class	Source	Location	Quote
2082.15	quasi-peritectic: L + Nb3Al -> Nb2Al + (Nb)	model	[1] He 2015	Table 5, p. 11, row 1 report
1923.15	other: L -> C14 + NbAl3	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 6 report
1913.15	other: L -> C14 + Nb2Al	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 4 report
1896.15	other: L -> C14 + Nb2Al	model	[1] He 2015	Table 5, p. 11, row 3 report
1889.15	other: L -> C14 + NbAl3	model	[1] He 2015	Table 5, p. 11, row 5 report
1853.15	peritectic: L + Nb2Al + C14 -> Co7Nb6(μ)	model	[1] He 2015	Table 5, p. 11, row 7 report
1851.15	peritectic: L + Nb2Al + C14 -> Co7Nb6(μ)	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 8 report
1828.15	eutectic: L -> C14 + NbAl3 + Nb2Al	model	[1] He 2015	Table 5, p. 11, row 9 report
1826.15	eutectic: L -> C14 + NbAl3 + Nb2Al	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 10 report
1795.15	other: L -> C14 + CoAl	model	[1] He 2015	Table 5, p. 11, row 11 report
1793.15	other: L -> C14 + CoAl	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 12 report
1765.15	other: L + CoAl -> Co2AlNb	model	[1] He 2015	Table 5, p. 11, row 13 report
1759.15	quasi-peritectic: L + CoAl -> C14 + Co2AlNb	model	[1] He 2015	Table 5, p. 11, row 14 report
1758.15	quasi-peritectic: L + CoAl -> C14 + Co2AlNb	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 15 report
1752.15	quasi-peritectic: L + Nb2Al -> (Nb) + Co7Nb6(μ)	model	[1] He 2015	Table 5, p. 11, row 17 report
1751.15	other: L -> C15 + C14	model	[1] He 2015	Table 5, p. 11, row 19 report
1749.15	quasi-peritectic: L + Nb2Al -> (Nb) + Co7Nb6(μ)	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 18 report
1748.15	other: L -> C15 + C14	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 20 report
1613.15	peritectic: L + C14 + C15 -> C36	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 22 report
1612.15	peritectic: L + C14 + C15 -> C36	model	[1] He 2015	Table 5, p. 11, row 21 report
1595.15	quasi-peritectic: L + C14 -> NbAl3 + CoAl	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 24 report
1593.15	quasi-peritectic: L + C14 -> Co2AlNb + C36	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 26 report
1593.15	quasi-peritectic: L + C14 -> NbAl3 + CoAl	model	[1] He 2015	Table 5, p. 11, row 23 report
1592.15	quasi-peritectic: L + C14 -> Co2AlNb + C36	model	[1] He 2015	Table 5, p. 11, row 25 report
1568.15	quasi-peritectic: L + Co2AlNb -> C36 + CoAl	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 28 report
1568.15	quasi-peritectic: L + Co2AlNb -> C36 + CoAl	model	[1] He 2015	Table 5, p. 11, row 27 report
1513.15	eutectic	experimental	[1] He 2015 cites Haour 1978	p. 2 report	Haour et al. [31] found a two-phase eutectic of a-Co(Al,Nb) + Nb(Co,Al)2 at a composition 7.3 at.% Al and 15.4 at.% Nb and 1240 °C.
1497.15	eutectic: L -> C36 + CoAl + (Co)	model	[1] He 2015	Table 5, p. 11, row 29 report
1493.15	eutectic: L -> C36 + CoAl + (Co)	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 30 report
1447.15	quasi-peritectic: L + CoAl -> NbAl3 + Co2Al5	experimental	[1] He 2015 cites Palm 2012 doi	Table 5, p. 11, row 32 report
1444.15	quasi-peritectic: L + CoAl -> NbAl3 + Co2Al5	model	[1] He 2015	Table 5, p. 11, row 31 report
1419.15	quasi-peritectic: L + Co2Al5 -> NbAl3 + CoAl3	model	[1] He 2015	Table 5, p. 11, row 33 report
1362.15	quasi-peritectic: L + CoAl3 -> NbAl3 + Co4Al13	model	[1] He 2015	Table 5, p. 11, row 34 report
1242.15	quasi-peritectic: L + Co4Al13 -> NbAl3 + Co2Al9	model	[1] He 2015	Table 5, p. 11, row 35 report
932.15	quasi-peritectic: L + NbAl3 -> Co2Al9 + (Al)	model	[1] He 2015	Table 5, p. 11, row 36 report

Other properties

Phase transition (10)

Phase transition, Al–Co–Nb system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1717.15 K	1717.15	other: 2.0-40 alloy: Al 0.02, Co 0.58, Nb 0.4	model	[1] He 2015	Table 6, p. 11, row 5 report
Phase transition	1727.15 K	1727.15	other: 2.0-40 alloy: Al 0.02, Co 0.58, Nb 0.4	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 6 report
Phase transition	1748.15 K	1748.15	other: 4.0-33 alloy: Al 0.04, Co 0.63, Nb 0.33	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 16 report
Phase transition	1748.15 K	1748.15	other: 6.0-33 alloy: Al 0.06, Co 0.61, Nb 0.33	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 20 report
Phase transition	1750.15 K	1750.15	other: 8.0-33 alloy: Al 0.08, Co 0.59, Nb 0.33	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 22 report
Phase transition	1751.15 K	1751.15	other: 2.0-33 alloy: Al 0.02, Co 0.65, Nb 0.33	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 4 report
Phase transition	1751.15 K	1751.15	other: 6.0-33 alloy: Al 0.06, Co 0.61, Nb 0.33	model	[1] He 2015	Table 6, p. 11, row 19 report
Phase transition	1752.15 K	1752.15	other: 4.0-33 alloy: Al 0.04, Co 0.63, Nb 0.33	model	[1] He 2015	Table 6, p. 11, row 15 report
Phase transition	1752.15 K	1752.15	other: 8.0-33 alloy: Al 0.08, Co 0.59, Nb 0.33	model	[1] He 2015	Table 6, p. 11, row 21 report
Phase transition	1757.15 K	1757.15	other: 2.0-33 alloy: Al 0.02, Co 0.65, Nb 0.33	model	[1] He 2015	Table 6, p. 11, row 3 report

Phase equilibrium (66)

Phase equilibrium, Al–Co–Nb system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	1533.15	other: 13.9-10.4 liquid: Al 0.139, Co 0.757, Nb 0.104	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 42 report
Phase composition	1543.15	other: 10-10.5 liquid: Al 0.1, Co 0.795, Nb 0.105	model	[1] He 2015	Table 6, p. 11, row 31 report
Phase composition	1553.15	other: 10-10.5 liquid: Al 0.1, Co 0.795, Nb 0.105	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 32 report
Phase composition	1579.15	other: 13.9-10.4 liquid: Al 0.139, Co 0.757, Nb 0.104	model	[1] He 2015	Table 6, p. 11, row 41 report
Phase composition	1651.15	other: 10.1-20.1 liquid: Al 0.101, Co 0.698, Nb 0.201	model	[1] He 2015	Table 6, p. 11, row 35 report
Phase composition	1666.15	other: 2.2-20.6 liquid: Al 0.022, Co 0.772, Nb 0.206	model	[1] He 2015	Table 6, p. 11, row 7 report
Phase composition	1681.15	other: 10.1-20.1 liquid: Al 0.101, Co 0.698, Nb 0.201	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 36 report
Phase composition	1681.15	other: 2.2-20.6 liquid: Al 0.022, Co 0.772, Nb 0.206	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 8 report
Phase composition	1693.15	other: 68.5-10.6 liquid: Al 0.685, Co 0.209, Nb 0.106	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 76 report
Phase composition	1700.15	other: 68.5-10.6 liquid: Al 0.685, Co 0.209, Nb 0.106	model	[1] He 2015	Table 6, p. 11, row 75 report
Phase composition	1712.15	other: 10-25.5 liquid: Al 0.1, Co 0.645, Nb 0.255	model	[1] He 2015	Table 6, p. 11, row 33 report
Phase composition	1718.15	other: 9.8-26.1 liquid: Al 0.098, Co 0.641, Nb 0.261	model	[1] He 2015	Table 6, p. 11, row 27 report
Phase composition	1719.15	other: 10-25.5 liquid: Al 0.1, Co 0.645, Nb 0.255	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 34 report
Phase composition	1724.15	other: 9.8-26.1 liquid: Al 0.098, Co 0.641, Nb 0.261	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 28 report
Phase composition	1730.15	other: 9.7-42.8 liquid: Al 0.097, Co 0.475, Nb 0.428	model	[1] He 2015	Table 6, p. 11, row 25 report
Phase composition	1733.15	other: 3.1-38.1 liquid: Al 0.031, Co 0.588, Nb 0.381	model	[1] He 2015	Table 6, p. 11, row 13 report
Phase composition	1734.15	other: 3.1-38.1 liquid: Al 0.031, Co 0.588, Nb 0.381	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 14 report
Phase composition	1735.15	other: 9.4-28.2 liquid: Al 0.094, Co 0.624, Nb 0.282	model	[1] He 2015	Table 6, p. 11, row 23 report
Phase composition	1736.15	other: 26.1-15.6 liquid: Al 0.261, Co 0.583, Nb 0.156	model	[1] He 2015	Table 6, p. 11, row 53 report
Phase composition	1737.15	other: 26.1-15.6 liquid: Al 0.261, Co 0.583, Nb 0.156	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 54 report
Phase composition	1740.15	other: 9.4-28.2 liquid: Al 0.094, Co 0.624, Nb 0.282	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 24 report
Phase composition	1742.15	other: 2.3-27.3 liquid: Al 0.023, Co 0.704, Nb 0.273	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 10 report
Phase composition	1743.15	other: 9.7-42.8 liquid: Al 0.097, Co 0.475, Nb 0.428	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 26 report
Phase composition	1745.15	other: 2.3-27.3 liquid: Al 0.023, Co 0.704, Nb 0.273	model	[1] He 2015	Table 6, p. 11, row 9 report
Phase composition	1748.15	other: 9.9-30.5 liquid: Al 0.099, Co 0.596, Nb 0.305	model	[1] He 2015	Table 6, p. 11, row 29 report
Phase composition	1749.15	other: 4.8-29.2 liquid: Al 0.048, Co 0.66, Nb 0.292	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 18 report
Phase composition	1749.45	other: 4.8-29.2 liquid: Al 0.048, Co 0.66, Nb 0.292	model	[1] He 2015	Table 6, p. 11, row 17 report
Phase composition	1752.15	other: 1.5-34.5 liquid: Al 0.015, Co 0.64, Nb 0.345	model	[1] He 2015	Table 6, p. 11, row 1 report
Phase composition	1753.15	other: 9.9-30.5 liquid: Al 0.099, Co 0.596, Nb 0.305	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 30 report
Phase composition	1754.15	other: 1.5-34.5 liquid: Al 0.015, Co 0.64, Nb 0.345	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 2 report
Phase composition	1755.15	other: 3.0-30 liquid: Al 0.03, Co 0.67, Nb 0.3	model	[1] He 2015	Table 6, p. 11, row 11 report
Phase composition	1756.15	other: 3.0-30 liquid: Al 0.03, Co 0.67, Nb 0.3	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 12 report
Phase composition	1760.15	other: 10.7-36.0 liquid: Al 0.107, Co 0.533, Nb 0.36	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 38 report
Phase composition	1760.25	other: 10.7-36.0 liquid: Al 0.107, Co 0.533, Nb 0.36	model	[1] He 2015	Table 6, p. 11, row 37 report
Phase composition	1761.15	other: 13.0-32.0 liquid: Al 0.13, Co 0.55, Nb 0.32	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 40 report
Phase composition	1763.15	other: 13.0-32.0 liquid: Al 0.13, Co 0.55, Nb 0.32	model	[1] He 2015	Table 6, p. 11, row 39 report
Phase composition	1768.15	other: 25.1-25.2 liquid: Al 0.251, Co 0.497, Nb 0.252	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 52 report
Phase composition	1778.15	other: 25.1-25.2 liquid: Al 0.251, Co 0.497, Nb 0.252	model	[1] He 2015	Table 6, p. 11, row 51 report
Phase composition	1808.15	other: 19.9-33.2 liquid: Al 0.199, Co 0.469, Nb 0.332	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 44 report
Phase composition	1810.15	other: 19.9-33.2 liquid: Al 0.199, Co 0.469, Nb 0.332	model	[1] He 2015	Table 6, p. 11, row 43 report
Phase composition	1810.15	other: 20.4-48.3 liquid: Al 0.204, Co 0.313, Nb 0.483	model	[1] He 2015	Table 6, p. 11, row 45 report
Phase composition	1818.15	other: 39.7-15.9 liquid: Al 0.397, Co 0.444, Nb 0.159	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 64 report
Phase composition	1821.15	other: 24.9-48.9 liquid: Al 0.249, Co 0.262, Nb 0.489	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 50 report
Phase composition	1824.15	other: 20.4-48.3 liquid: Al 0.204, Co 0.313, Nb 0.483	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 46 report
Phase composition	1828.15	other: 39.7-15.9 liquid: Al 0.397, Co 0.444, Nb 0.159	model	[1] He 2015	Table 6, p. 11, row 63 report
Phase composition	1836.15	other: 24.9-48.9 liquid: Al 0.249, Co 0.262, Nb 0.489	model	[1] He 2015	Table 6, p. 11, row 49 report
Phase composition	1841.15	other: 34.4-25.4 liquid: Al 0.344, Co 0.402, Nb 0.254	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 60 report
Phase composition	1848.15	other: 24.2-42 liquid: Al 0.242, Co 0.338, Nb 0.42	model	[1] He 2015	Table 6, p. 11, row 47 report
Phase composition	1850.15	other: 34.4-25.4 liquid: Al 0.344, Co 0.402, Nb 0.254	model	[1] He 2015	Table 6, p. 11, row 59 report
Phase composition	1852.15	other: 46.2-20.7 liquid: Al 0.462, Co 0.331, Nb 0.207	model	[1] He 2015	Table 6, p. 11, row 65 report
Phase composition	1853.15	other: 24.2-42 liquid: Al 0.242, Co 0.338, Nb 0.42	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 48 report
Phase composition	1853.15	other: 46.2-20.7 liquid: Al 0.462, Co 0.331, Nb 0.207	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 66 report
Phase composition	1873.15 (>)	other: 60.0-23.0 liquid: Al 0.6, Co 0.17, Nb 0.23	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 70 report
Phase composition	1882.15	other: 28.7-35.4 liquid: Al 0.287, Co 0.359, Nb 0.354	model	[1] He 2015	Table 6, p. 11, row 55 report
Phase composition	1883.15	other: 28.7-35.4 liquid: Al 0.287, Co 0.359, Nb 0.354	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 56 report
Phase composition	1883.15	other: 33.3-48.8 liquid: Al 0.333, Co 0.179, Nb 0.488	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 58 report
Phase composition	1885.15	other: 60.0-23.0 liquid: Al 0.6, Co 0.17, Nb 0.23	model	[1] He 2015	Table 6, p. 11, row 69 report
Phase composition	1886.15	other: 33.3-48.8 liquid: Al 0.333, Co 0.179, Nb 0.488	model	[1] He 2015	Table 6, p. 11, row 57 report
Phase composition	1899.15	other: 60.0-25.0 liquid: Al 0.6, Co 0.15, Nb 0.25	model	[1] He 2015	Table 6, p. 11, row 71 report
Phase composition	1906.15	other: 60.0-25.0 liquid: Al 0.6, Co 0.15, Nb 0.25	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 72 report
Phase composition	1940.15	other: 39.3-35.1 liquid: Al 0.393, Co 0.256, Nb 0.351	model	[1] He 2015	Table 6, p. 11, row 61 report
Phase composition	1943.15	other: 39.3-35.1 liquid: Al 0.393, Co 0.256, Nb 0.351	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 62 report
Phase composition	1951.15	other: 48.7-35.6 liquid: Al 0.487, Co 0.157, Nb 0.356	model	[1] He 2015	Table 6, p. 11, row 67 report
Phase composition	1953.15	other: 48.7-35.6 liquid: Al 0.487, Co 0.157, Nb 0.356	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 68 report
Phase composition	1962.15	other: 66.1-32.8 liquid: Al 0.661, Co 0.011, Nb 0.328	model	[1] He 2015	Table 6, p. 11, row 73 report
Phase composition	1963.15	other: 66.1-32.8 liquid: Al 0.661, Co 0.011, Nb 0.328	experimental	[1] He 2015 cites Palm 2012 doi	Table 6, p. 11, row 74 report

Sources

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

Cuiyun He, Frank Stein, Martin Palm, Thermodynamic description of the systems Co–Nb, Al–Nb and Co–Al–Nb, Journal of Alloys and Compounds 637, 361-375 (2015). doi:10.1016/j.jallcom.2015.02.182

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}
}