Why is X-ray radiation preferred for the butt joints of pressure vessels made of non-ferrous metals?
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Why is X-ray radiation preferred for the butt joints of pressure vessels made of non-ferrous metals?
Perhaps with non-ferrous metals, X-ray inspection is used, as it makes it easier to identify defects; other methods are less effective in detecting them or not suitable for this purpose{:1_90:}
My interpretation: There are two common methods for inspecting butt welds, RT and UT. Ultrasonic testing cannot provide visual results, so its effectiveness depends to a large extent on the skill and sense of responsibility of the personnel involved. Moreover, the grains in non-ferrous metals have a significant impact on ultrasonic waves, and this also relates to the choice of probe. Therefore, radiographic inspection, which can be viewed directly on film, is the preferred method. 2 For radiographic inspection, it can be divided into X-rays and gamma rays. This is because the quality of X-ray imaging is generally better than that of gamma-ray imaging. In fact, current TOFD or CR can be used for these purposes, but there is still a long way to go in terms of development. Ha, for reference.