EBSD STUDY ON THE EVOLUTION OF MICROSTRUCTURES DURING COMPRESSIVE DEFORMATION OF AN AUSTENITIC STAINLESS STEEL

Abstract

Microstructural evolution during compressive deformation of a meta-stable austenitic stainless steel has been investigated using an electron-backscattered diffraction (EBSD) technique. A local area tracking method has been adopted in order to observe the successive changes in local microstructures during the compression. The local microstructures could be observed in-situ from this method without using any in-situ stage, in addition to a precisely-controlled real time deformation process. Successive development of grain orientation spread, grain boundary misorientation and deformation-induced phase in the local areas of interest were successfully investigated from this method.