Effect of High-pressure H₂ Gas on Fatigue Properties of Steel Metals by Means of the Internal High-pressure H₂ Method

Abstract

For prohibiting a global warming, fuel-cell systems without carbon dioxide emissions are a one of the promising technique. In case of a fuel-cell vehicle (FCV), high-pressure H₂ gas is indispensable for a long running range. Although there are lot of paper for studying a hydrogen embrittlement (HE), there are few paper referred to the effect of high-pressure H₂ on the HE phenomenon. In this study, an effect of high-pressure H₂ gas on fatigue properties of stainless steel (SUS316L) was investigated by means of internal high- pressure H₂ gas technique.