Microdeformation Behaviour of a Ferritic-Austenitic Duplex Stainless Steel

摘要

Microdeformation of ferritic and austeniticgrains in a ferritic-austenitic duplex stainless steelhave been observed in-situ by SEM with photoetch.The plastic deformation behaviour of austeniticgrains are similar to ferritic grains for hydrogenuncharged specimens,it follows Mileiko’sstrain-equal model.But it will be changed when thespecimens are hydrogen charged.