An approach for stringent quality assurance of steam generator tubes

被引：4

作者：

Rao, B. P. C. ^{[1
]}

Thirunavukkarasu, S. ^{[1
]}

Jayakumar, T. ^{[1
]}

Rai, Baldev ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, NDE Div, Electromagnet Sensors Modelling & Imaging Sect, Kalpakkam 603102, Tamil Nadu, India

来源：

INSIGHT | 2007年 / 49卷 / 12期

关键词：

steam generator; eddy current; ultrasonic; multifrequency; quality assurance;

D O I：

10.1784/insi.2007.49.12.698

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

For detection of localised defects in ultrasonically acceptable wall thickness variation regions in 2.3 mm-thick ferromagnetic steam generator tubes, a two-ftequency eddy current approach is proposed. The ultrasonic thickness data of afew defect-free tubes is utilised for optimisation (of the two-frequency mixing parameters. The approach is validated by detecting a reference standard hole of 1.2 mm diameter in wall thickness variation regions. With suitable thresholds, this approach has been successfully implemented in production-line for meeting the stringent quality assurance needs of steam generator tubes during manufacturing stages.

引用

页码：698 / 700

页数：3