Host: The Iron and Steel Institute of Japan
Pages 217-220
The present study investigated the effect of cyclic transformation strengthening on the tensile properties and deformation-induced martensitic transformation (DIMT) behavior in the fine-grained Fe-24Ni-0.3C (wt.%) metastable austenitic steel using in-situ synchrotron XRD measurements. The cyclic transformation treatment, which involves forward and reverse phase transformations between martensite and austenite, induced a significantly improved mechanical properties to the material. In-situ XRD measurements revealed that the DIMT during tensile deformation was significantly enhanced by the cyclic transformation treatment, contributing the observed improvement in the mechanical properties.
