Hydrogen embrittlement evaluation in tensile properties of stainless steels at cryogenic temperatures

被引:0
|
作者
Ogata, T. [1 ]
机构
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
关键词
hydrogen environment embrittlement; stainless steel; tensile properties; cryogenic temperature; martensitic transformation;
D O I
暂无
中图分类号
O414.1 [热力学];
学科分类号
摘要
The advanced design of fuel-cell vehicles requires high-pressure low-temperature hydrogen systems, which in turn requires a high-pressure low-temperature mechanical properties database to address hydrogen embrittlement issues. A very simple and safe mechanical properties testing procedure to evaluate low temperature hydrogen embrittlement has been developed and is reported here. Tensile properties of stainless steel, SUS 304, 304L and 316L, obtained by this simple method are in good agreement with previous data obtained in a high pressure chamber. The effect of hydrogen changed also with the amount of strain-induced martensitic transformation in those steels at low temperatures.
引用
收藏
页码:124 / 131
页数:8
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