Eddy current testing of type-439 stainless steel tubing using magnetic saturation technique

Title
Eddy current testing of type-439 stainless steel tubing using magnetic saturation technique
Author(s)
홍승열이희종[이희종]조찬희[조찬희]남민우[남민우]유현주[유현주]
Issue Date
201207
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Citation
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v.26, no.7, pp.2081 - 2085
Abstract
The type-439 ferritic stainless steel tubing is typically used for a moisture separator reheater (MSR) in a nuclear power plant turbine system. MSR employ heavier wall tubing than that of other reheaters. Generally, service-induced damage can occur on the outside diameter surface of the type-439 ferritic stainless steel tubing, and the most typical damage mechanism is the vibration-induced tube-to-tube support plate (TSP) wear and the fatigue cracking. In this study, the optimized magnetic flux density of an eddy current probe for the inspection of type-439 stainless steel tubing has been analyzed, and a specific magnetic saturation probe was designed. We have successfully evaluated the capability of the magnetic saturation eddy current technique to detect and measure flaws in the type-439 stainless steel tubing of moisture separator reheater.
URI
http://hdl.handle.net/YU.REPOSITORY/27627http://dx.doi.org/10.1007/s12206-012-0519-z
ISSN
1738-494X
Appears in Collections:
공과대학 > 기계공학부 > Articles
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