Importance of Measurement Technique on Clarification of Mechanism of SCC of Stainless Steel

Abstract

The research work of SCC of stainless steel has been done again after interval of 30 years. In order to study the SCC different from usual method, development of various devices and techniques were done. The most important device among them is the super Kelvin force microscope. It has been succeeded that the deformation behavior of crack with the crack propagation was observed and that the hydrogen compound behavior was observed as the potential distribution by using this device. It has been proved that the crack propagation of SCC of stainless steel on chloride environment occurs during the movement of hydrogen in stress field.