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

Audrey Lechartier (1) , Guilhem Martin (1) , Solène Comby , Francine Roussel-Dherbey , Alexis Deschamps (1) , Marc Mantel (1) , Nicolas Meyer (2) , Marc Verdier (1) , Muriel Véron (1)

1 SIMaP - Science et Ingénierie des Matériaux et Procédés
2 Laboratoire de biostatistique

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.

Domaines: Matériaux

Audrey Lechartier, Guilhem Martin, Solène Comby, Francine Roussel-Dherbey, Alexis Deschamps, et al.. Influence of the Martensitic Transformation on the Microscale Plastic Strain Heterogeneities in a Duplex Stainless Steel. Metallurgical and Materials Transactions A, 2017, 48 (1), pp.20 - 25. ⟨10.1007/s11661-016-3858-z⟩. ⟨hal-01613440⟩