Evaluation of Hydrogen Enbrittlement by Slow Speed SZW Measurement Method

摘要

In order to study the mechanism of fracture by observing the deformation behavior at the crack tip, we established slow speed SZW measurement method. This method was applied to clarify the fracture mecha-nism of duplex stainless steel, SUS 329J1, under cathodic potential. The result shows that the deformation style changed by the influence of hydrogen when the deformation speed was slow. From these, this method was found to he useful for the study of the mechanism of hydrogen embrittlement.