Research on on-line ultrasonic testing of small diameter thin wall stainless steel straight welded pipe

In the production process of thin-walled stainless steel longitudinal welded pipe, there are many defects, such as cracks, porosity, partial welding, incomplete penetration, incomplete fusion. In this study, a local coupling water tank and six ultrasonic linear focusing probes with a center frequenc...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-03, Vol.1820 (1), p.12086
Main Authors: Hou, Huaishu, Lu, Ding, Zhang, Shiwei, Zhang, Yi, Cheng, Chaolei
Format: Article
Language:English
Subjects:
Inspection
Longitudinal waves
Physics
Porosity
S waves
Stainless steel
Stainless steels
Thin walls
Ultrasonic testing
Water tanks
Welded pipes
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Summary:In the production process of thin-walled stainless steel longitudinal welded pipe, there are many defects, such as cracks, porosity, partial welding, incomplete penetration, incomplete fusion. In this study, a local coupling water tank and six ultrasonic linear focusing probes with a center frequency of 5MHz were used to realize the defect identification of the straight welded pipe in the twisted state through the combined detection of the ultrasonic shear wave, longitudinal wave and creeping wave, which can meet the on-line inspection requirements of small-diameter thin-walled stainless steel straight welded pipe.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1820/1/012086