ばね鋼の腐食耐久性評価方法とその応用

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書誌事項

タイトル別名
  • Evaluation of Corrosion Fatigue Properties for Spring Steels and Its Application
  • バネ コウ ノ フショク タイキュウセイ ヒョウカ ホウホウ ト ソノ オウヨ

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説明

In this paper, the, experimental method for evaluating a corrosive mode of spring steels to meet with the real usage of car, and the statistic approach for avaluating a corrosive pit characteristic, were studied.<br>The studies were also extended to the influence of alloy elements and shot peering to corrosive fatigue strength.<br>It was found that these approaches may have some possibility to predict corrosive fatigue strength, as described below.<br>1) The corrosive pit characteristic can be improved by adding Cu, Ni and Cr to spring steels.<br>2) The proposed statistic approach by using the estimated value of pit dimension can evaluate corrosive pit characteristic of spring steels quantitatively.<br>3) The shot peering process can improve corrosive fatigue strength for the residual stress can restrain crack propagation at the bottom corrosive pit.<br>4) It can be realized the prediction of corrosive fatigue strength may become possible by applying the estimated value of pit dimension to Murakami's ewuation.

収録刊行物

  • ばね論文集

    ばね論文集 1998 (43), 37-42, 1998-03-31

    日本ばね学会

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