The thesis considers the problem of ensuring the quality of welded joints of titanium sheets with a thickness of 1 millimeter using the magnetostrictive ultrasonic testing method.
The relevance of the study is due to the wide use of titanium alloys in high-tech industries, where high strength, corrosion resistance and low weight of the material are key requirements. However, welded joints of such sheets require special control due to their sensitivity to defects that can negatively affect the reliability of structures. The magnetostrictive method is used to generate ultrasonic waves capable of diagnosing internal and surface defects, such as cracks, pores and under-penetration, without damaging the material. The paper reviews the principles of operation of magnetostrictive transducers, and also conducts experimental studies of the coefficients of the electroacoustic path necessary to substantiate the requirements for the means of pre-processing of magnetostrictive transducer signals. Recommendations for automating the method have been developed to increase the performance of defect detection in thin titanium sheets.
The results obtained confirm the prospects of using the magnetostrictive method for ultrasonic testing of welded joints in titanium structures, and also provide a basis for further development of automated ultrasonic non-destructive testing systems in critical industries.
Research advisor: Y.Kuts
