Restoration of fatigue damage in stainless steel by high-density electric current

Yongpeng Tang, Atsushi Hosoi, Yasuyuki Morita, Yang Ju

研究成果: Article査読

28 被引用数 (Scopus)

抄録

To investigate the effect of high-density electric current on healing of the fatigue damage, the recovery of residual plastic strain was quantitatively evaluated with the digital image correlation method. The microhardness was measured within the plastic zone at the root of notch. Furthermore, the dislocation structures before and after the application of electric current were investigated by transmission electron microscopy to further understand the mechanics of the healing effect. It was concluded that the fatigue damage was healed by a decrease in dislocation density. As a result, fatigue crack initiation was delayed by the healing of fatigue damage.

本文言語English
ページ(範囲)69-74
ページ数6
ジャーナルInternational Journal of Fatigue
56
DOI
出版ステータスPublished - 2013
外部発表はい

ASJC Scopus subject areas

  • モデリングとシミュレーション
  • 材料科学(全般)
  • 材料力学
  • 機械工学
  • 産業および生産工学

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