Assessment of hydrogen accumulation behavior in AlZnMg alloy under strain with Kelvin force microscopy

Hiro Fujihara, Hiroyuki Toda, Makoto Arita, Kazuyuki Shimizu, Akihisa Takeuchi, Kentaro Uesugi

研究成果: Contribution to journalArticle査読

抄録

Hydrogen embrittlement in aluminum alloys occurs due to local hydrogen accumulation during deformation. Investigating hydrogen diffusion with plastic deformation can help researchers further understand hydrogen embrittlement behavior in terms of its occurrence condition. We assessed hydrogen accumulation behavior in AlZnMg alloys under strain by combining tensile testing with Kelvin force microscopy. Additionally, the effects of microstructures on hydrogen accumulation were analyzed in detail. Hydrogen accumulated around specific grain boundaries, and it was likely that accumulated hydrogen was repartitioned to the generated vacancies, due to deformation, and the precipitate interfaces.

本文言語英語
ページ(範囲)636-641
ページ数6
ジャーナルMaterials Transactions
62
5
DOI
出版ステータス出版済み - 2021

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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