Hydrogen embrittlement behavior of Inconel 718 alloy at room temperature

Xinfeng Li, Jin Zhang, Eiji Akiyama, Qinqin Fu, Qizhen Li

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Hydrogen embrittlement of Inconel 718 alloy was investigated. Multi-scale observation technique were employed, comprising slow strain rate tensile tests, scanning electron microscopy and transmission electron microscopy analysis. The results demonstrate that hydrogen charging deteriorates mechanical properties of the alloy. Inconel 718 alloy shows partial Portevin-Le Chatelier (PLC) effect at room temperature when hydrogen charging current density is 220 mA cm−2 and 590 mA cm−2. Moreover, plastic deformation features with dislocation cells are detected in hydrogen-induced brittle zone. Thus, it is concluded that dragging effect of hydrogen atoms on dislocations contributes to PLC effect.

本文言語English
ページ(範囲)499-502
ページ数4
ジャーナルJournal of Materials Science and Technology
35
4
DOI
出版ステータスPublished - 2019 4

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料力学
  • 機械工学
  • ポリマーおよびプラスチック
  • 金属および合金
  • 材料化学

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