Abstract
The thermodynamic properties of the Fe-Mn-N system are analyzed using models for the Gibbs energy of its various phases. The model parameters of the binary Fe-Mn, Fe-N, and Mn-N systems are taken from recent assessments, whereas the ternary parameters are evaluated from experimental information. Particular attention is paid to the solubilities of nitrogen in the melt and in austenite at various conditions. A number of calculated solubility curves and sections of the Fe-Mn-N phase diagram are presented and compared with experimental results. The present calculation shows very good agreement with most of the experiments.
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CAIAN QIU, on leave from the Department of Materials Science and Engineering, Central South University of Technology, Changsha, Hunan, People’s Republic of China.
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Qiu, C. A thermodynamic evaluation of the Fe-Mn-N system. Metall Trans A 24, 629–645 (1993). https://doi.org/10.1007/BF02656632
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DOI: https://doi.org/10.1007/BF02656632