Hydrogen-assisted quasi-cleavage fracture in a single crystalline type 316 austenitic stainless steel

Motomichi Koyama, Eiji Akiyama, Takahiro Sawaguchi, Kazuyuki Ogawa, Irina V. Kireeva, Yury I. Chumlyakov, Kaneaki Tsuzaki

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Abstract

Hydrogen embrittlement properties were examined in a single crystalline type 316 austenitic stainless steel. Tensile tests were conducted along the 〈1. 1. 1〉 and 〈0. 0. 1〉 directions under hydrogen charging. Hydrogen-assisted {1. 1. 1} quasi-cleavage fracture was observed in both tensile orientations. The degradation of fracture stress and elongation, hydrogen uptake, and hydrogen-induced fracture surface were dependent on the tensile orientation. The tensile orientation dependence of the hydrogen embrittlement properties was shown to result from the deformation twinning behavior. In addition, Ag decoration technique clarified that hydrogen localizes on regions where hydrogen-assisted quasi-cleavage fracture appeared.

Original languageEnglish
Pages (from-to)345-353
Number of pages9
JournalCorrosion Science
Volume75
DOIs
Publication statusPublished - Oct 1 2013

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Austenitic stainless steel
Hydrogen
Crystalline materials
Hydrogen embrittlement
Twinning
Elongation
Degradation

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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Hydrogen-assisted quasi-cleavage fracture in a single crystalline type 316 austenitic stainless steel. / Koyama, Motomichi; Akiyama, Eiji; Sawaguchi, Takahiro; Ogawa, Kazuyuki; Kireeva, Irina V.; Chumlyakov, Yury I.; Tsuzaki, Kaneaki.

In: Corrosion Science, Vol. 75, 01.10.2013, p. 345-353.

Research output: Contribution to journalArticle

Koyama, Motomichi ; Akiyama, Eiji ; Sawaguchi, Takahiro ; Ogawa, Kazuyuki ; Kireeva, Irina V. ; Chumlyakov, Yury I. ; Tsuzaki, Kaneaki. / Hydrogen-assisted quasi-cleavage fracture in a single crystalline type 316 austenitic stainless steel. In: Corrosion Science. 2013 ; Vol. 75. pp. 345-353.
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