Review of Hydrogen Embrittlement in Metals: Hydrogen Diffusion, Hydrogen Characterization, Hydrogen Embrittlement Mechanism and Prevention
Xinfeng Li1,2(), Xianfeng Ma1, Jin Zhang3, Eiji Akiyama4, Yanfei Wang5(), Xiaolong Song2

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Fig.7. a Dislocation configuration of hydrogen-uncharged and hydrogen-charged Al [28]; b stress-strain curve of Al, Al-H and Al-VaH complex [28]. HU hydrogen-uncharged, HC hydrogen-charged, Al-VaH Al-hydrogen vacancy complex