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Vol.4 No.1 previous AA 39 -40-SP6(41-42-43-44)-NT 46 -47

Academic Articles
Regular Paper Vol.4No.2 (2012) p.96 - p.104
 

Nondestructive Investigation of Wall Thinning in Doubled Layer Tube by Magnetic Adaptive Testing

 
Gábor VÉRTESY1*,Ivan TOMÁŠ2, Tetsuya UCHIMOTO1 and Toshiyuki TAKAGI 1
 
1 Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
2 Institute of Physics, Na Slovance 2, Praha 182 2, Czech Republic
 
Abstract
A recently developed nondestructive method, called Magnetic Adaptive Testing, which is based on systematic measurement and evaluation of minor magnetic hysteresis loops was applied for detection of local wall thinning in carbon steel, ferromagnetic T-shape tubes. Presently no effective inspection method is available for detection of wall thinning of a T-tube with reinforcing plate. It was shown that an artificially made slot can be reliable detected with good signal/noise ratio from the other side of the specimen even through the support plate.
 
Keywords
Magnetic NDT, Wall thinning, Magnetic Adaptive Testing
 
Full Paper: PDF EJAM Vol.4No. 2 pp.96-104 "Nondestructive Investigation of Wall Thinning in Doubled Layer Tube by Magnetic Adaptive Testing
Article Information
Article history:
Received 11 April 2012
Accepted 7 Julu 2012