Corrosion fatigue crack growth behavior of structural steels in synthetic seawater - considering cavitation bubbles cushing in a fatigue crack

被引：0

作者：

Hattori, Shuji ^{[1
]}

Okada, Tsunenori ^{[1
]}

机构：

[1] Fukui Univ, Japan

来源：

Zairyo/Journal of the Society of Materials Science, Japan | 1988年 / 37卷 / 418期

关键词：

Cavitation - Microscopic Examination--Scanning Electron Microscopy - Stresses;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In a previous study, the influence of cyclic frequency on fatigue crack growth rate in liquid environments was investigated. The corrosion fatigue crack growth at high frequencies was found to decrease to almost the same value as that in laboratory air, possibly due to the gaseous phase produced by the cavitation bubbles gushing at the tip of the crack. In this study, the influence of cavitation bubbles on the fatigue crack behavior in synthetic seawater was investigated in terms of stress waveforms. When the stress waveform with a constant period changed its rate to a high value, cavitation bubbles were observed at the tip of the crack and the corrosion fatigue crack growth rate approached the value obtained in laboratory air.

引用

页码：763 / 769