Analysis on Applicability of the Guided Wave Ultrasonic for Pipeline Corrosion Testing

In order to find out how the different types of pipeline corrosion impact the results of the guided wave ultrasonic testing, this paper undertook theoretic analysis based on simple explanation of the technique and its underlying principles, meanwhile an experiment was carried out on a part of pipeline in which there were different kinds of artificial defects. It was foand out that the guided wave ultrasonic testing was able to detect many kinds of pipeline corrosion, and the shape of corrosion and structural characteristic(elbow, weld)of pipeline had great impact on the results greatly.