High-voltage electron-microscopic observation of cyclic slip behavior around a fatigue crack tip in an iron alloy

Yoshimasa Takahashi, Masaki Tanaka, Kenji Higashida, Hiroshi Noguchi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The cyclic slip behavior around a fatigue crack tip originally located inside a bulk Fe-Si alloy was successfully observed by a high-voltage electron microscope in combination with a novel specimen preparation method. The method, by taking advantages of ion milling and focused ion beam techniques, ensures that the original shape of the crack tip is preserved without introducing additional slips. The observation confirms that the slip bands emitted from the fatigue crack tip are bounded by a labyrinth-like wall structure.

Original languageEnglish
Pages (from-to)717-720
Number of pages4
JournalScripta Materialia
Volume60
Issue number8
DOIs
Publication statusPublished - Apr 1 2009

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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