Nb–Ti system

0 accepted literature values from 0 paper(s); 5 calculated phase diagram(s). 2 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 (5) · papers (bibliography) · Markdown

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
NbTi-01Zha-LB.tdb	Y. Zhang, H. Liu, Z. Jin, Calphad, 25, 305-17(2001). doi:10.1016/S0364-5916(01)00051-7	`cc166cb688a0d62e749d475c6ec8f7fb748a10573ec4d2dffe1d6615136aca15`	viewer · TDB · JSON
NbTi-16Yan.tdb	J.-Y. Yan, G.B. Olson, J. Alloys Compd., 673, 441-54(2016). doi:10.1016/j.jallcom.2016.02.251	`334018575c889441556389b60667bef4bbecb9e41938d1eee7659a065d59fa85`	viewer · TDB · JSON
NbTi-18Hu.tdb	B. Hu, Y. Jiang, J. Wang, B. Yao, F. Min, Y. Du, Calphad, 62, 75-82(2018). doi:10.1016/j.calphad.2018.05.007	`b7a98bf27255bfc2948311e90e40745ef454407bbe5898fda01efffe31f1b2eb`	viewer · TDB · JSON
NbTi-94Har.tdb	K.C. Hari Kumar, P. Wollants, L. Delaey, Calphad, 18, 71-79(1994). doi:10.1016/0364-5916(94)90008-6	`09901ed78b749997f4b2a848ace2d49440c8c8d9b9e4b5c1083a274aae2cf361`	viewer · TDB · JSON
NbTi-98Sau.tdb	N. Saunders, COST 507, Final report round 2, 1998.	`7e8f7395e69fa0a0aede30302d1e09d9fde399c137632bb0ade43cbe506f4ead`	viewer · TDB · JSON

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull NbTi-01Zha-LB · CALPHAD hull NbTi-16Yan · CALPHAD hull NbTi-94Har · CALPHAD hull NbTi-98Sau

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}
}