Thermodynamic assessment of the Mo-Zr system |
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Authors: | M Zinkevich and N Mattern |
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Affiliation: | (1) Institut für Testk?rper-und Werkstofforschung Dresden, Postfach 270016, D-01171 Dresden, Germany;(2) Present address: Max-Planck Institut für Metallforschung, PML, Heisenbergstr. 5, D-70569 Stuttgart, Germany |
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Abstract: | The Mo-Zr system was critically assessed using the calculation of phase diagrams (CALPHAD) technique. The solution phases
(liquid, bcc, and cph) were modeled with the Redlich-Kister expression for the excess Gibbs energy. The intermetallic Mo2Zr Laves phase, which has a measurable homogeneity range, was treated by a two-sublattice model with Mo and Zr on both sublattices.
A set of self-consistent thermodynamic parameters for the Mo-Zr system was obtained. With the optimized functions for the
Gibbs energy of the individual phases, most of the experimental information can be well reproduced. |
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