Investigation of Eddy Current Examination on OD Fatigue Crack for Steam Generator Tubes

被引：0

作者：

Kong, Yuying ^{[1
]}

Ding, Boyuan ^{[1
]}

Li, Ming ^{[1
]}

Liu, Jinhong ^{[1
]}

Chen, Huaidong ^{[1
]}

Meyendorf, Norbert G. ^{[2
]}

机构：

[1] CGNPC Inspect Technol Co Ltd, Suzhou 215021, Jiangsu, Peoples R China

[2] Fraunhofer IKTS MD, Dresden, Germany

来源：

SMART MATERIALS AND NONDESTRUCTIVE EVALUATION FOR ENERGY SYSTEMS 2015 | 2015年 / 9439卷

关键词：

Inconel; 690; tubing; Eddy Current Inspection; Fatigue Crack; OD Crack Sizing;

D O I：

10.1117/12.2084713

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The opening width of fatigue crack was very small, and conventional Bobbin probe was very difficult to detect it in steam generator tubes. Different sizes of 8 fatigue cracks were inspected using bobbin probe rotating probe. The analysis results showed that, bobbin probe was not sensitive for fatigue crack even for small through wall crack mixed with denting signal. On the other hand, the rotating probe was easily to detect all cracks. Finally, the OD phase to depth curve for fatigue crack using rotating probe was established and the results agreed very well with the true crack size.

引用

页数：7