IMPROVEMENT OF THE METHODOLOGY FOR ULTRASONIC NON-DESTRUCTIVE TESTING APPLICATION

Abstract

Ultrasonic non-destructive testing (UT) is one of the most effective and widespread methods for detecting internal defects in materials and structures for various purposes. UT is used for quality control of complex technical objects (CTO), including high-risk objects, where even minor defects can lead to serious consequences. However, existing UT methods have certain limitations, in particular, regarding the accuracy of defect assessment. This is due to the discrepancy in the amplitudes of signals reflected from different reflectors in test blocks used for equipment adjustment. In order to increase the accuracy of the measurements, analytical models of the amplitudes of signals from reflectors were developed. These models allow improving the UT methodology, in particular, by introducing reasonable corrections that eliminate amplitude discrepancies and improve the accuracy of the UT results. The implementation of such approaches helps to increase the reliability and safety of technical facilities, as well as reduce the risk of emergencies due to unnoticed defects.