An Indicator for the Suppression of Fatigue Crack Growth by Hybrid Peening

DOI Web Site BIBCODE 被引用文献5件 オープンアクセス
  • TAKAKUWA Osamu
    Department of Nanomechanics, Graduate School of Engineering, Tohoku University
  • YAMAMIYA Kouhei
    Department of Nanomechanics, Graduate School of Engineering, Tohoku University
  • SOYAMA Hitoshi
    Department of Nanomechanics, Graduate School of Engineering, Tohoku University

書誌事項

公開日
2013
資源種別
journal article
DOI
  • 10.1299/jmmp.7.357
公開者
一般社団法人 日本機械学会

説明

Peening techniques are used to introduce compressive residual stress into the surface of a metal in order to improve the fatigue properties and resistance to stress corrosion cracking of the metal. The present paper focuses on the effect of peening on the fatigue crack growth behavior in austenitic stainless steel. An indicator which can be used to determine by how much the fatigue crack growth can be suppressed was found. Regardless of the type of peening technique used, a much closer correlation to the number of cycles to failure was found with the area of integration under the compressive residual stress curve with respect to depth than with the compressive residual stress at the surface. Moreover hybrid peening, which is a combination of different peening techniques, was developed in this study in order to enhance the favorable effects of peening. Hybrid peening increased the area of integration under the compressive residual stress curve and, as a result, a further increase in the number of cycles to failure compared to single peening was obtained.

収録刊行物

  • JSMME

    JSMME 7 (3), 357-371, 2013

    一般社団法人 日本機械学会

被引用文献 (5)*注記

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