The Behavior of Fatigue Cracks in Pure Iron Subjected to Rotary Bending and Cyclic Torsion : 2nd Report, Effect of Crystal Grain Size
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概要
- 論文の詳細を見る
The behavior of fatigue cracks in plain specimens of pure iron whose mean grain diameter was 0.15 mm was examined by both rotary bending and cyclic torsion tests. The results were compared with those of the previous study using the same material of 0.04 mm in grain diameter. The difference of grain size had not any marked effect on the relation between length and depth of the cracks. The fatigue-notch factor in bending was higher than that in torsion, and the difference between the factors in both tests tended to increase with growth of grain size. The propagation of cracks in torsion was more affected by the orientation factors of crystal grains near crack tips than that in bending. It was found that the grain size was not necessarily dominant for the efatigue-notch factor of cracked specimens.
- 一般社団法人日本機械学会の論文
著者
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Seika Masaichiro
Faculty Of Engineering Nagoya University
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Kitaoka Seiichiro
Faculty Of Engineering Nagoya University
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KO Haeng-Nam
Faculty of Engineering, Nagoya University.
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Ko Haeng-nam
Faculty Of Engineering Nagoya University
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