Influences of Stress Ratios on Cyclic Stress Corrosion Crack Growth Characteristics of a High-strength Steel
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概要
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Influences of stress ratios and stress cycle frequencies on cyclic stress corrosion crack growth characteristics of a high-strength steel have been investigated. The influences of stress ratios on crack growth rate under cyclic SCC are clearly distinguished between above and below K_<ISCC>. In the range of K_<max>, K_<FSCC>≦ K_<max> < K_<ISCC>, a decrease of R causes not only an increase of da/dt but also a lowering of K_<FSCC>. In this region crack growth rate is cycle-dependent, and the crack growth by a cyclic SCC is dominant. In high K_<max>, K_<max>≧ K_<ISCC>, time-dependent da/dt increases with an increase of R and the crack growth by a static SCC is dominant.
- 一般社団法人日本機械学会の論文
著者
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Endo Kichiro
Deparfment Of Mechanical Engineering Kyoto University
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KOMAI Kenjiro
Department of Mechanical Engineering, Kyoto University
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Komai Kenjiro
Department Of Mechanical Engineering Graduate School Of Engineering Kyoto University
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MATSUDA Yoshinobu
Sakamura Machine
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