Hydrogen-assisted crack propagation in α-iron during elasto-plastic fracture toughness tests

Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen

研究成果: ジャーナルへの寄稿学術誌査読

14 被引用数 (Scopus)

抄録

Elasto-plastic fracture toughness tests of a commercially pure iron were performed in air and in hydrogen gas at two different pressures. Some unique characteristics of hydrogen-enhanced cracking were exhibited at both the macroscopic and microscopic length scales, based on the observation of fracture surface, fracture plane, plasticity distribution and dislocation structure. The possible mechanisms responsible for the hydrogen-induced degradation of fracture toughness are discussed.

本文言語英語
ページ(範囲)396-404
ページ数9
ジャーナルMaterials Science and Engineering A
756
DOI
出版ステータス出版済み - 5月 22 2019

!!!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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