In summer 1998, TransCanada PipeLines Ltd., Calgary, inspected two sections of a 914-mm (36 in.) OD gas transmission pipeline (predominantly 9.14 mm WT) using an ultrasonic liquid-coupled, crack ...
Ultrasonic nondestructive testing, also known as ultrasonic NDT or simply UT, is a method of characterizing the thickness or internal structure of a test piece using high-frequency sound waves. The ...
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