Reevaluation of the Fe-Mn phase diagram |
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| Authors: | V T Witusiewicz F Sommer E J Mittemeijer |
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| Affiliation: | (1) ACCESS e.V., Intzestrasse 5, D-52072 Aachen, Germany;(2) Max Planck Institute for Metals Research, Heisenbergstrasse 3, D-70569 Stuttgart, Germany |
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| Abstract: | New results for the enthalpy of mixing of liquid Fe-Mn alloys, the enthalpy of formation of γ-Fe-Mn solid solutions and the
heat capacity of α-Fe-Mn and γ-Fe-Mn alloys obtained by isoperibolic calorimetry and differential thermal analysis (DTA) measurements
have been used for the reassessment of the molar Gibbs energy of the various phases of the Fe-Mn system. Experimental information
about martensitic transformation temperatures in Fe-Mn alloys published recently was incorporated in the updating of the occurring
metastable equilibria. The present reevaluation results in a good fit with all available experimental data and is compared
with the results of previous assessments. |
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