OS05W0392 Combination of electron back scattering diffraction and atomic force microscopy investigations for the study of slip bands induced by fatigue in a stainless steel

Abstract

EBSD and AFM have been combined to study slip bands produced at the surface of a 316L austenitic stainless steel tested in the low cycle fatigue range. EBSD investigations allow activated slip systems to be identified. AFM measurements permit to characterize the height profile of extrusions at a nanometric scale. Their coupling in the same deformed areas has permitted to analyze in details the morphology of extrusions in relation with the local crystallographic configuration. A special attention has been paid on the inclination of slip bands.