Influence of deformation-induced martensite on residual stresses of torsion coil spring made of SUS304

Abstract

Because of the excellent corrosion resistance, weldability and mechanical properties, SUS304 is widely used for manufacturing industrial equipment and daily necessities. SUS 304 is an austenitic stainless steel, so its physical properties also have characteristics that greatly change depending on the amount of martensite in the material. The purpose of this research is to develop a simulation method to predict the residual stress of SUS304 considering martensitic transformation.