Non-destructive testing is a group of surface and volumetric diagnostic tests that provide information about the functional properties of the tested object. They enable the determination of the condition of the micro- and macrostructure without any interference to the structure. Due to this basic feature, the main purpose of non-destructive testing is the detection of material defects and the evaluation of tested objects for discontinuity and lack of uniformity. Thanks to NDT, it is possible to, for example, detect corrosion and erosion defects or cracks. Non-destructive testing can be carried out at various stages of production, operation, or repair. They are used to perform quality control of products and to determine the technical condition of the object. As a result, non-destructive testing has a wide range of applications in various branches of industry. The aim of the second part of this Topic is to continue with the presentation of both the development of various non-destructive testing methods, as well as examples of applications of this group of tests in various branches of industry.
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