Hydrogen-induced slip localization around a quasi-brittle fatigue crack observed by high-voltage electron microscopy

Yoshimasa Takahashi, Masaki Tanaka, Kenji Higashida, Hiroshi Noguchi

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The effect of hydrogen on cyclic slip behavior around a fatigue crack tip in a bulk Fe-Si alloy is successfully observed by high-voltage electron microscopy. The observation explicitly reveals the following points: (i) hydrogen reduces the amount of cyclic slip whereas it promotes crack growth rate; and (ii) hydrogen induces a quasi-brittle crack growth that accompanies localized slip in the crack periphery.

Original languageEnglish
Pages (from-to)145-148
Number of pages4
JournalScripta Materialia
Volume61
Issue number2
DOIs
Publication statusPublished - Jul 1 2009

Fingerprint

Electron microscopy
high voltages
Hydrogen
electron microscopy
slip
cracks
Crack propagation
Electric potential
hydrogen
crack tips
Crack tips
Cracks
Fatigue cracks

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Hydrogen-induced slip localization around a quasi-brittle fatigue crack observed by high-voltage electron microscopy. / Takahashi, Yoshimasa; Tanaka, Masaki; Higashida, Kenji; Noguchi, Hiroshi.

In: Scripta Materialia, Vol. 61, No. 2, 01.07.2009, p. 145-148.

Research output: Contribution to journalArticle

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