Influence of sodium deposits in steam generator tubes on remote field eddy current signals

被引：12
|
作者：
Thirunavukkarasu, S. [1 ]
Rao, B. P. C. [1 ]
Vaidyanathan, S. [1 ]
Jayakumar, T. [1 ]
Raj, Baldev [1 ]
机构：
[1] Indira Gandhi Ctr Atom Res, Met & Mat Grp, NDE Div, EMSI Sect, Kalpakkam 603102, Tamil Nadu, India
来源：
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2008年 / 85卷 / 04期
关键词：
structural integrity; steam generators; remote field eddy current; in-service inspection; non-destructive testing; sodium deposits;
D O I：
10.1016/j.ijpvp.2007.10.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The presence of sodium deposits in defective regions of steam generator (SG) tubes of fast-breeder reactors is expected to influence the remote field eddy current (RFEC) signals. By exposing five SG tubes having uniform wall loss grooves to a sodium environment in a specially designed test vessel, changes in the shape of RFEC signals were observed and it was possible to approximate the volume of sodium deposited in defects. An invariant signal parameter was determined for quantitative characterization of defects despite the presence of sodium in the defects. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：211 / 218
页数：8
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