内圧式高圧水素法を用いた鉄鋼材料の疲労特性に及ぼす高圧水素ガスの影響評価

抄録

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.