Influence of the Martensitic Transformation on the Microscale Plastic Strain Heterogeneities in a Duplex Stainless Steel
Résumé
The influence of the martensitic transformation on
microscale plastic strain heterogeneity of a duplex
stainless steel has been investigated. Microscale strain
heterogeneities were measured by digital image correlation
during an in situ tensile test within the SEM. The
martensitic transformation was monitored in situ during
tensile testing by high-energy synchrotron X-ray diffraction.
A clear correlation is shown between the plasticity-
induced transformation of austenite to martensite
and the development of plastic strain heterogeneities at
the phase level.