Abstract:Coarse grained phase morphologies of iron-rich region of FeSi alloys at 1 050 K are investigated by using first-principles phase field and special quasirandom structure methods without relying on any experimental or empirical information. From the free energy comparison, we find that, for the Si concentration less than 25 at%, a solid-solution-like homogeneous phase is most stable, although a random pattern in nm scale consisting of B2 Fe 4-x Si x and D0 3 Fe 3 Si phases may appear at 12.5 at% Si at somewhat l… Show more
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