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Synchrotron X-ray Laue diffraction study of hydrogen-induced blisters on iron grain boundaries

The effects of grain boundaries (GBs) on the initiation of hydrogen-induced blisters in pure iron were investigated using synchrotron polychromatic X-ray Laue nano-diffraction. It was found that the random GBs were more susceptible to blistering than the coincidence site lattice grain boundaries. Hi...

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Bibliographic Details
Published in:Scripta materialia 2019-08, Vol.169, p.82-86
Main Authors: Tao, Xuan, Lv, Guo-Cai, Kou, Jiawei, Xiong, Xilin, Volinsky, Alex A., Ku, Ching-Shun, Chen, Kai, Su, Yan-Jing
Format: Article
Language:English
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Summary:The effects of grain boundaries (GBs) on the initiation of hydrogen-induced blisters in pure iron were investigated using synchrotron polychromatic X-ray Laue nano-diffraction. It was found that the random GBs were more susceptible to blistering than the coincidence site lattice grain boundaries. High strain levels and severe plastic deformation were observed around the random GBs after hydrogen charging, but not on the coincidence site lattice grain boundaries. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2019.05.009