氢脆
氢
腐蚀
材料科学
脆化
环境应力断裂
冶金
厌氧腐蚀
化学
有机化学
作者
Makoto Kawamori,Fumio Yuse
标识
DOI:10.1016/j.corsci.2023.111212
摘要
Hydrogen entry and hydrogen embrittlement of high-strength steel in atmospheric corrosion environment was investigated using an in-situ hydrogen permeation technique and a strain gage method, respectively. The hydrogen concentration increased at the beginning of corrosion and when the corrosion reaction was accelerated, such as when a typhoon approached. The hydrogen embrittlement occurred when the surface hydrogen concentration exceeded the critical hydrogen concentration. It is directly demonstrated that hydrogen embrittlement crack initiation, arrest, and propagation are repeated accompanied with hydrogen entry and release due to environmental changes, leading to final fracture.
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