Effect of Shot-Peening on the Fatigue Strength of Metals. III : Effect on Steel with Notch
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概要
- 論文の詳細を見る
To see the effect of shot-peening on the fatigue under notched conditions, rotary-bending fatigue tests were carried out with 1-R grooved and 90°-V notched specimens of Si-Mn spring steels so heat-treated as to be of 140〜150kg/mm^2 in tensile strength. The results obtained were as follows : (1) Shot-peening was more effective on notched than on polished surfaces, that is, the fatigue limits were increased by 3, 33 and 73 per cent respectively in the polished, the 1-R grooved and the 90°-V notched specimens, in proportion to the notch factor ; (2) The work of peening was effective even when the shot could not reach the root of notch. Accordingly, it was concluded that shot-peening was always effective in preventing structural materials from fatigue failure under notched conditions of various types of stress concentration.
- 東北大学の論文
- 1959-00-00
著者
-
Takeuchi Sakae
The Research Institute For Iron Steel And Other Metals
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Homma Tsuneo
The Research Institute For Iron Steel And Other Metals
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