Influence of cyclic frequency on the corrosion fatigue crack growth of steels in liquid environments. Considering cavitation bubbles gushing in a fatigue crack.
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- OKADA Tsunenori
- Faculty of Engineering, Fukui University
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- HATTORI Shuji
- Faculty of Engineering, Fukui University
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- SUZUKI Yoshihide
- Fujitsu-Ten Co.
Bibliographic Information
- Other Title
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- 液中で鋼の腐食疲労き裂進展に及ぼす荷重繰返し速度の影響 き裂先端で発生するキャビテーションの影響について
- エキチュウ デ コウ ノ フショク ヒロウ キレツ シンテン ニ オヨボス カ
- Considering Cavitation Bubbles Gushing in a Fatigue Crack
- き裂先端で発生するキャビテーションの影響について
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Abstract
It was already reported that many bubbles were observed gushing from the tip of cracks in fatigue tests in liquid environments. These bubbles occur due to the cavitation accompaning with the opening and closing action of the crack. In this study, the influence of cavitation bubbles on the crack growth behavior was investigated at various load frequencies in synthetic seawater and in ion exchanged water. The following conclusions were drawn.<br>(1) The ratio of crack growth rate in a liquid environment to that in laboratory air at a constant ΔKeff was obtained as a function of load frequency. This curve showed a constant in low frequency range (<0.2Hz) and in high frequency range (>5Hz), respectively, and a transition range was observed between these constant ranges.<br>(2) It may be considered that the corrosion fatigue crack growth at high frequencies in liquid environments was reduced to the almost same value as in the laboratory air, because the cavitation bubbles were gushing at the tip of the crack.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 36 (410), 1259-1264, 1987
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390282680369158272
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- NII Article ID
- 110002297195
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 3157658
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed