Abstract
The cross-hole test block test, the acoustic emission characteristics of the system base metal, manual welding and automatic welding for each defect, the research shows that the attenuation of the ultrasonic wave in the base metal and the weld is different, and the attenuation in the weld is greater. Because the welding process causes the coarse crystal structure in the weld, the attenuation of the ultrasonic wave in the weld is increased, and the sensitivity of the weld detection is also increased. Ultrasonic waves pass through the manual weld seam longer than the automatic weld.
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More From: IOP Conference Series: Earth and Environmental Science
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