238 微小試験片によるステンレス鋼高圧水素ガス曝露材の強度特性評価(OS8-2 水素環境が金属強度特性に及ぼす影響,OS8 水素環境が金属強度特性に及ぼす影響)

概要

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Tensile and fatigue properties of stainless steels exposed to highly pressurized hydrogen gaseous environment are investigated using small specimen. The hydrogen content distribution in the small specimen is nearly uniform, because the thickness of the specimen is very small (0.3mm). Metastable austenitic stainless steel SUS304 and SUS304L show the degradation of tensile ductility and the fatigue life by exposure to hydrogen gas environment. Even stable austenitic stainless steel SUS316L shows the little degradation of the tensile ductility in the high hydrogen content range, but doesn't show the degradation of the fatigue life.
一般社団法人日本機械学会の論文
2007-10-24