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Thermodynamic calculation of the phase diagram of the Co–Nb–Ta system

Authors
  • Hari Kumar, K. C.
  • Van Rompaey, T.
  • Wollants, P.
Type
Published Article
Journal
International Journal of Materials Research
Publisher
De Gruyter
Publication Date
Feb 12, 2022
Volume
93
Issue
11
Pages
1146–1153
Identifiers
DOI: 10.1515/ijmr-2002-0196
Source
De Gruyter
Keywords
Disciplines
  • Articles/Aufsätze
License
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Abstract

A thermodynamic description of the ternary system Co–Nb–Ta is obtained by combining the descriptions of the lower-order systems according to the CALPHAD method. The thermodynamic data set for the binary Co–Nb system is taken from [1], where a new thermodynamic model for the μ-phase was introduced. The μ-phase appears in several transition metal systems, including Co–Ta. The model is applied to the Co–Ta system and extended to the ternary Co–Nb–Ta system. The thermodynamic descriptions of the systems Co–Ta, Nb–Ta and Co–Nb–Ta are reported in the present work.

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