Phase field simulation of the sub-Block microstructure in lath martensitic steels

Abstract

The formation mechanism of the sub-block microstructure in lath martensite is explained by a two-type-slip deformation (TTSD) model. To simulate the sub-block structure morphology, the TTSD model is coupled with the phase field method resulting in the elastoplastic phase field model. The sub-block structure of lath martensite in Fe0.1C mass% steel is simulated in 3-D by employing the elastoplastic phase field model, which helps with the understanding of the formation mechanism of the sub-block structure in lath martensite. © 2012 The Japan Institute of Metals.