The article presents factors affecting the performance of ultrasonic tests of dissimilar materials. Factors which influence the selection of an appropriate testing technique and the specific usability of testing probes include the structure of materials subjected to tests, the coarse-grained anisotropic structure and the grain size. Dissimilar materials enjoy popularity in many industrial sectors, including the power and chemical industries. The construction of chemical tankers requires the use of materials having the dual-phase structure (duplex steel). The detection of discontinuities requires the use of an appropriate testing technique and an evaluation technique (presented in the study).

doi: 10.17729/ebis.2022.5/8