Effects of Hydrogen Gas Environment on the Fatigue Strength at 107 cycles in the Plain Specimens of Type 316L Stainless Steel (A Report Focusing on the Behavior of Micro Fatigue Crack)

Kawamoto, Kyohei; Ochi, Kazuhiko; Oda, Yasuji; Noguchi, Hiroshi

doi:10.1299/kikaia.73.1343

Cited by 4 publications

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“…Table shows the result of a literature survey regarding the purity of hydrogen gas used for experiments . As described above, oxygen and other specific gas impurities contained in hydrogen gas environment have inhibitory effects on hydrogen‐induced degradation of material strength.…”

Section: Introductionmentioning

confidence: 99%

Inhibitory effect of oxygen on hydrogen‐induced fracture of A333 pipe steel

Komoda

Kubota

Staykov

et al. 2019

Fatigue Fract Eng Mat Struct

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The effect of oxygen contained in hydrogen gas environment as an impurity on hydrogen environment embrittlement (HEE) of A333 pipe steel was studied through the fracture toughness tests in hydrogen gases. The oxygen contents in the hydrogen gases were 100, 10, and 0.1 vppm. A significant reduction in the J‐Δa curve was observed in the hydrogen with 0.1‐vppm oxygen. Under given loading conditions, the embrittling effect of hydrogen was completely inhibited by 100 vppm of oxygen. In the case of the hydrogen with 10‐vppm oxygen, initially the embrittling effect of hydrogen was fully inhibited, and then subsequently appeared. It was confirmed that 1‐vppm oxygen reduced the embrittling effect of hydrogen. The results can be explained by the predictive model of HEE proposed by Somerday et al.

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Section: Introductionmentioning

confidence: 99%