Dynamic Austenite-to-Ferrite Transformation Behavior of Plain Low Carbon Steel within (gamma + gamma) 2-Phase Field at Low Strain Rate

摘要

Massive ferrite was observed to form during deformation of plain low carbon steel within (gamma + alpha) 2-phase field at temperatures below T_0, whereas polygonal ferrite was formed at higher temperatures by conventional strain-induced transformation. The grain refinement occurred through continuous recrystallization of massive ferrite during deformation.