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Published:2016.12.01

Non-contact electromagnetic acoustic transducer that detects defects smaller than 0.1mm

Prof. Masahiko HIRAO, Assoc.Prof. Hirotsugu OGI, Assis.Prof. Nobutomo NAKAMURA

 

In nuclear power plants and chemical plants, stainless steel pipes are used because of its high tolerance to corrosion.  However, small cracks can appear on inner surface near welded regions, so called stress corrosion cracking.  Because crack growth finally causes rupture of pipes, detect...

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