Experimental and numerical study on strain path and crystal orientation dependences of phase transformation behaviors of QP1180 steel

Phase transformation behaviors of a quenching & partitioning (QP) steel, QP1180, under different strain paths are investigated by both experiment and crystal plasticity simulation. Experiments of various strain paths including uniaxial tension (UT), uniaxial compression (UC), plane strain tension (PST) and equi-biaxial tension (EBT) are conducted, and the mechanical stability of retained austenite (RA) shows obvious strain path and orientation …