Effect of high density electric current field on fatigue cracks in stainless steel

Atsushi Hosoi, T. Nagahama, Y. Ju

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A technique was developed to heal a fatigue crack 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. It was found that the electric stimulation influences the states and propagation behavior of a fatigue crack in the stainless steel. When the electric current was applied to a specimen having a pre-crack with a large opening displacement, a closure effect at the crack tip was shown and the bridges between the crack surfaces were observed. On the other hand, when the electric current was applied to a specimen having a pre-crack with a small opening displacement, an opening effect was shown. These effects were also evaluated quantitatively by the Paris law.

Original languageEnglish
Title of host publicationASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Pages123-128
Number of pages6
Volume9
DOIs
Publication statusPublished - 2010
Externally publishedYes
EventASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010 - Vancouver, BC
Duration: 2010 Nov 122010 Nov 18

Other

OtherASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
CityVancouver, BC
Period10/11/1210/11/18

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Hosoi, A., Nagahama, T., & Ju, Y. (2010). Effect of high density electric current field on fatigue cracks in stainless steel. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) (Vol. 9, pp. 123-128) https://doi.org/10.1115/IMECE2010-37819