Abstract
In case of a fuel-cell vehicle, high-pressure H_2 gas is indispensable for a long running range. Also some components used in the Hydrogen Station exposed to a high-pressure H_2 gas. Although there are lot of paper for studying a hydrogen embrittlement (HE), there are few paper referred to the effect of high-pressure H_2 on the HE phenomenon. In this study, an effect of high-pressure H_2 gas on tensile and fatigue properties of stainless steel SUS316 was investigated by means of the internal high-pressure H_2 gas technique. Main findings of this study are as follows; 1) There are little influence of high-pressure H_2 gas to tensile and fatigue strength on SUS316 at room temperature. 2) It was verified that the internal high-pressure H_2 gas technique is very useful for easy experiment.
