Model for the interaction between interface migration and carbon diffusion during annealing of martensite-austenite microstructures in steels

The interaction between carbon partitioning from martensite to austenite and interface migration during annealing of martensite-austenite microstructures is modeled, assuming the same chemical potential of carbon in martensite and austenite at the interface and allowing the motion of the phase interface when a free-energy difference occurs. The simulations show that the motion of the martensite-austenite interface can be significant and can takes place in either direction. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.