Calculation of phase equilibria in Al-Fe-Mn ternary system involving three new ternary intermetallic compounds

Abstract

In this study, the Al-Fe-Mn ternary system is reassessed by the CALPHAD method. Three new ternary intermetallic compounds are initially described and a reasonable and self-consistent set of thermodynamic parameters are established to describe this system. The 973 K, 1 073 K, 1 173 K, 1 273 K, 1 373 K, and 1 473 K isothermal sections and the 1 073 K, 1 013 K, 968 K and 913 K isothermal sections at the Al corner as well as the liquidus projection at the Al corner are calculated. It is shown that the calculated results are in good agreement with almost all of the experimental results previously reported.

Keywords

Al-Fe-Mn / CALPHAD / Phase equilibria / Isothermal sections

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Funding

The authors thank the National Basic Research Program of China(2014CB643403)

National Nature Science Foundation of China(51374142)