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Hydrogen Effects on the Migration of Nanoscale Cavities in Iron
ISIJ International ( IF 1.8 ) Pub Date : 2021-08-17 , DOI: 10.2355/isijinternational.isijint-2021-140
Kazuto Arakawa 1 , Akira Kageyama 2 , Hideto Hiroshima 3 , Hidehiro Yasuda 4 , Shigenobu Ogata 5
Affiliation  

Accurate knowledge of the influence of hydrogen on the behavior of vacancies and vacancy clusters is crucial for understanding the mechanism of hydrogen embrittlement of α-iron and its alloys. Using in-situ transmission electron microscopy, we examined the effects of hydrogen on the behavior of nanoscale cavities under heating, by comparison between the behaviors of cavities without hydrogen produced upon high-energy electron irradiation and those with hydrogen produced upon electro-deposition. It is revealed that hydrogen promotes the migration of cavities, in contrast to a traditional notion.



中文翻译:

氢对铁中纳米级空穴迁移的影响

准确了解氢对空位和空位簇行为的影响对于理解α-铁及其合金的氢脆机制至关重要。使用原位透射电子显微镜,我们通过比较高能电子辐射产生的没有氢的空腔和电沉积产生的氢的空腔行为,研究了氢对加热下纳米级空腔行为的影响。结果表明,与传统概念相反,氢促进了空腔的迁移。

更新日期:2021-08-16
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