Mechanical Behavior of Deformation‐Induced α′‐Martensite and Flow Curve Modeling of a Cast CrMnNi TRIP‐Steel

摘要: For the modeling of mechanical behavior a two phase alloy with rule mixture (RM), flow stress both phases is needed. In order to obtain these information for α′-martensite in high alloyed TRIP-steels, compression tests at cryogenic temperatures were performed create fully deformation-induced martensitic microstructure. This material condition was subsequently tested under compressive loading −60, 20, and 100°C strain rates 10−3, 100, 103 s−1 determine properties. The possesses strength surprisingly good ductility up 60% strain. Using that stable austenitic steel AISI 316L, CrMnNi TRIP-steel modeled successfully using special RM proposed by Narutani et al.