Search


Information
ICMST-Tohoku 2018
Oct. 23 - 26, 2018
Sendai, Japan
ICMST-Shenzhen 2016
Nov 1 - 4, 2016
Shenzhen, China
(EXIT THIS PAGE)
ICMST-Kobe 2014
Nov 2(Sun) - 5(Wed), 2014
Kobe, Japan
Nuclear Regulation Authority Outline of the New Safety Standards for Light Water Reactors for Electric Power Generation
For Public Comment
Outline of New Safety Standard (Design Basis)
For Public Comment
New Safety Standards (SA) Outline (Draft)
For Public Comment
Outline of New Safety Standard(Earthquake and Tsunami)(DRAFT)
Issues
 

Vol.10 No.2(Aug)
Vol.10 No.1(May)
Vol.9 No.4(Feb)
Vol.9 No.3(Nov)
< Other Issues

 

Occasional Topics
OTjapan Measures for Tsunami Striking Nuclear Power Station in Japan
Special Article: The Great Tohoku Earthquake (1)
OTjapan The Tragedy of “To Be” Principle in the Japanese Nuclear Industry
EJAMOT_CN3_Figure1_The_outside_view_of_CEFR OTChinaPlanning and Consideration on SFR R&D Activities in China
< All Occasional Topics

Featured Articles
EJAM7-3NT72 A New Mechanical Condition-based Maintenance Technology Using Instrumented Indentation Technique
EJAM7-3NT73 Survey robots for Fukushima Daiichi Nuclear Power Plant

JSM
Contacts
(EJAM): ejam@jsm.or.jp
(JSM): secretariat@jsm.or.jp
HP: http://www.jsm.or.jp
(in English)

 

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