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Alpha/Gamma equilibria in the Fe-Co phase diagram

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Abstract

It is possible to treat the equilibrium between α and γ phases and obtain a good representation of the phase boundaries in the Fe-Co system using the cluster variation method. In this study, calculations were performed on quaternary Fe+Fe-Co+Co- by considering both chemical and magnetic interactions. The A2/B2 order-disorder transition and the α/γ phase equilibria agree well with the experimental data. These results were obtained with very few adjustable parameters; however, the study is a first step toward calculating multicomponent phase diagrams based on the Fe-Co system.

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Authors and Affiliations

  1. the Laboratoire de Thermodynamique et Physico-Chimie Métallurgiques, France

    C. Colinet & A. Antoni-Zdziobek

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  1. C. Colinet
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  2. A. Antoni-Zdziobek
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Additional information

For more information, contact C. Colinet, Laboratoire de Thermodynamique et Physico-Chimie Métallurgiques, UMR, CNRS 5614/INPG/UJF, B.P. 75, F-38402 Saint Martin d’Hères Cedex, France; telephone 33 4 76 82 65 14; fax 33 4 76 82 67 67; e-mail ccolinet@ltpcm.inpg.fr.

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Colinet, C., Antoni-Zdziobek, A. Alpha/Gamma equilibria in the Fe-Co phase diagram. JOM 52, 26–28 (2000). https://doi.org/10.1007/s11837-000-0157-2

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