| Issue |
MATEC Web of Conferences
Volume 3, 2013
XXXIX JEEP – 39th Edition of the Joint European Days on Equilibrium Between Phases
|
|
|---|---|---|
| Article Number | 01008 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/matecconf/20130301008 | |
| Published online | 01 July 2013 | |
Thermodynamic assessments of the Fe-Y and Ni-Sc systems
1 Laboratory of Thermodynamics and Energy (L.T.E), Faculty of Science, B.P 8106, University Ibn Zohr, Agadir, Morocco
2 Laboratoire de Physicochimie de l’Etat Solide, ICMMO, Université de Paris-Sud, 91405 Orsay Cedex, France
The present study concerns the optimization of the Fe-Y and Ni-Sc systems by the help of the CALPHAD (CALculation of Phase Diagram) method, taking into account the available experimental results about phase equilibria and thermodynamic properties. The excess terms of the Gibbs energy of the solution phases (liquid, b.c.c., f.c.c. and h.c.p.) were assessed with the recent exponential temperature dependence of the interaction energies by Kaptay and compared with the linear dependence by Redlich-Kister. Furthermore, the computer program Thermo-Calc allows to obtain estimated data for experimentally undetermined thermodynamic properties and to compare the computed phase diagrams with those already published.
© Owned by the authors, published by EDP Sciences, 2013
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