微粒子ショットピーニング処理を施した鋼の疲労特性におよぼす投射条件の影響

書誌事項

タイトル別名
  • Effect of Processing Condition on Fatigue Properties of Steel Modified with Fine Particle Bombarding.
  • ビリュウシ ショットピーニング ショリ オ ホドコシタ ハガネ ノ ヒロウ トクセイ ニ オヨボストウシャ ジョウケン ノ エイキョウ

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抄録

Rotational bending fatigue tests were carried out on SAE 1547 steel modified by a fine particle bombarding, with special attention focused on the effect of the processing condition on the fatigue properties. The air pressure strongly affects the stability of the compressive residual stress and the fatigue strength of the specimen treated by high air pressure is slightly higher than that of the low air pressure specimens. The specimen treated with small particles show significantly higher fatigue strength compared to those treated by large particles. This is because the compressive residual stress remained after stress cycling at the surface of the specimens treated with small particles. In addition, the surface hollows formed by impingement of the particles were smaller than those treated by large particles.

収録刊行物

  • 表面技術

    表面技術 53 (3), 214-218, 2002

    一般社団法人 表面技術協会

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