Fatigue crack healing by a controlled high density electric current field

A. Hosoi, T. Nagahama, Y. Ju

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

A technique was developed to heal a fatigue crack in stainless steel by controlling a high-density electric current field. The high density electric current field was applied at the tip of the crack by using closely spaced electrodes. From the experimental results, it was observed the crack closure and the bridging between the surfaces of a crack were caused around the vicinity of the crack tip after a high density pulse current was applied to a specimen. It was shown that crack propagation was delayed temporarily in the healed specimen.

Original languageEnglish
Pages (from-to)38-42
Number of pages5
JournalMaterials Science and Engineering A
Volume533
DOIs
Publication statusPublished - 2012 Jan 30
Externally publishedYes

Keywords

  • Crack healing
  • Crack propagation
  • Electric current
  • Fatigue
  • Stainless steel

ASJC Scopus subject areas

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

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