Abstract:Nanoscale Cu clusters and α′ phase affect the hardness and brittleness of Fe-Cr-based stainless steel. The separation of Cr-enriched nanoscale α′ phase with Cu shell in Fe-Cr-Al-Cu alloys was revealed by three-dimensional phase-field simulation. The influences of Cu content and temperature on the evolution kinetics and element distribution were clarified. In the phase separation process, the Al is distributed in the matrix, Cu is first distributed in the matrix, then enriched around the Cr-enriched α′ phase, f… Show more
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