Influence of the Martensitic Transformation on the Microscale Plastic Strain Heterogeneities in a Duplex Stainless Steel

International audienceThe influence of the martensitic transformation onmicroscale plastic strain heterogeneity of a duplexstainless steel has been investigated. Microscale strainheterogeneities were measured by digital image correlationduring an in situ tensile test within the SEM. Themartensitic transformation was monitored in situ duringtensile testing by high-energy synchrotron X-ray diffraction.A clear correlation is shown between the plasticity-induced transformation of austenite to martensiteand the development of plastic strain heterogeneities atthe phase level