S0301-1-3 Effect of high-density electric current field on fatigue crack closure and propagation in stainless steel

• NAGAHAMA Takatsugu

  Graduate School of Engineering, Nagoya University

• YANO Takahiro

  Graduate School of Engineering, Nagoya University

• HOSOI Atsushi

  Nagoya University

• JU Yang

  Nagoya University

Bibliographic Information

Other Title

• S0301-1-3 高密度電流場形成によるステンレス鋼の疲労き裂閉口及び進展挙動に及ぼす影響([S0301-1]欠陥の診断および治癒)

Abstract

The technique to heal a fatigue crack in a stainless steel by controlling a high-density electric current field was developed. The high-density electric current field can be caused at the tip of the crack using extremely adjacent electrodes. As the experimental results, it was observed that the crack closure and the bridging on the crack surface at the vicinity of the crack tip were caused due to applying the high-density pulse current in the specimen. It was evaluated quantitatively by Paris law that the propagation of the healed fatigue crack delayed temporally.

Journal

• The proceedings of the JSME annual meeting

  The proceedings of the JSME annual meeting 2010.1 (0), 57-58, 2010

  The Japan Society of Mechanical Engineers

Keywords

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

Details

• CRID: 1390282681042224128
• NII Article ID: 110008701109
• DOI: 10.1299/jsmemecjo.2010.1.0_57
• ISSN: 24331325
• Web Site: https://www.jstage.jst.go.jp/article/jsmemecjo/2010.1/0/2010.1_57/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed