The Notch Effect on Corrosion-fatigue Strength of High-strength Steels

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概要

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• The notch effect on corrosion -fatigue strength was investigated with high-strength steels of HT50 and HT80. In ion exchanged water, the fatigue strength of HT80 is at first not affected by slight notches, and then decreases with an increase of αk (stress concentration factor), finally reaching a value which is probably the corrosion-fatigue strength of a specimen with a circular crack. For HT50, the fatigue strength decreases due to slight notches, and the strength of a sharply notched specimen coincides with that of HT80. On the other hand, in synthetic sea water, the fatigue strength is considerably lower, and is independent of the materials. However, a similar notch effect is recognized. This behavior can be explained by observations of the surface and cracks in the specimens.

• 一般社団法人日本機械学会の論文

著者

• OKADA Tsunenori

  Department of Mechanical Engineering, Fukui University

• Hattori Shuji

  Department Of Mechanical Engineering Fukui University

• Hattori Shuji

  Department Mechanical Engineering Fukui University

• Okada Tsunenori

  Department Of Mechanical Engineering Fukui University

• YAMAGISHI Shinichiro

  Speciality of Mechanical Engineering, Fukui University

• Yamagishi Shinichiro

  Speciality Of Mechanical Engineering Fukui University

関連論文

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• The Notch Effect on Corrosion-fatigue Strength of High-strength Steels
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