Effect of Initial Grain Size on the Microstructure and Mechanical Properties of High-Pressure Torsion Processed Twinning-Induced Plasticity Steels

Abstract

The initial grain size of TWIP steel can affect the deformation mechanism during the HPT processes and the mechanical properties of severely deformed TWIP steels, contrary to the common belief that responses to the severe plastic deformation of metallic materials are not affected by initial grain size.