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Thermodynamic Re-Assessment of the Co-Nb System

Published online by Cambridge University Press:  01 February 2011

Cuiyun He ,
Frank Stein ,
M. Palm  and
Dierk Raabe
Cuiyun He
Affiliation:
he@mpie.de, Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, United States
Frank Stein
Affiliation:
stein@mpie.de, Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany
Dierk Raabe
Affiliation:
Raabe@mpie.de, Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany
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Abstract

A new thermodynamic assessment of the Co-Nb system is presented. All experimental phase diagram data available from the literature have been critically reviewed and assessed using thermodynamic models for the Gibbs energies of the individual phases (Thermo-Calc). Compared to previous assessments more elaborate models for the description of the C14 and C36 Laves phases and for the μ phase were employed. Thereby a calculated phase diagram is obtained which satisfactorily agrees with the experimental data.

Keywords

phase equilibriaCoNb

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