Eddy current inspection of closed fatigue and stress corrosion cracks

被引：50
|
作者：
Yusa, Noritaka [2 ]
Perrin, Stephane
Mizuno, Kazue
Chen, Zhenmao
Miya, Kenzo
机构：
[1] IIU, Tokyo 1100008, Japan
[2] Univ Tokyo, Dept Nucl Engn & Management, Grad Sch Engn, Tokyo, Japan
[3] Xi An Jiao Tong Univ, MOE Key Lab Strength & Vibrat, Xian, Peoples R China
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2007年 / 18卷 / 11期
关键词：
electromagnetic non-destructive evaluation; fatigue crack; stress corrosion cracking; austenitic stainless steel;
D O I：
10.1088/0957-0233/18/11/021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study evaluates the effect of loading on closed crack openings on eddy current signals caused by the crack. Three plate specimens having a fatigue crack and another three specimens having stress corrosion cracking are prepared. Four-point bending of the specimens is carried out to introduce compressive stress to close the opening of the cracks. Then eddy current signals due to the crack are gathered using a plus point type probe. The bending was conducted with a variable load; the eddy current signals remain almost unchanged regardless of the loading.
引用
收藏
页码：3403 / 3408
页数：6
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