Skip to content
1900

Effect of High-pressure H2 Gas on Tensile and Fatigue Properties of Stainless Steel SUS316L by Means of the Internal High-pressure H2 Gas 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 H2on the HE phenomenon.
In this study, an effect of high-pressure Hgas on tensile & fatigue properties of stainless steel SUS316L were investigated by means of the internal high-pressure Hgas technique. Main findings of this study are as follows;

  • Although there are almost no hydrogen embrittlement effect on the 0.2 % proof stress and tensile strength, elongation and reduction of area decrease in Hgas environment,
  • For case of low Nieq material, fatigue life and fatigue limit decrease in Hgas environment,
  • For case of low Nieq material, not a few α’ martensitic phase generated on the fatigue fractured specimen.

Countries: Japan
Loading

Article metrics loading...

/content/journal1968
2019-12-24
2024-11-22
/content/journal1968
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error