Abstract
The second part of the article describes possibilities of phased array flaw detectors application for testing of railway transport units, such as solebars of freight cars. The task was to reproduce the standard testing procedures using phased array flaw detectors and demonstrate their advantages in visibility, efficiency, repeatability, results validity. Unfortunately, one of the main advantages of phased array flaw detectors, namely – a possibility to control the focusing depth – is lost while testing of large scale objects.
 Sector scanning technique with the phased array flaw detectors OmniScan and Isonic 2010 in the minimum configuration was used for the research. In the all cases acoustical images of the side drilled holes and natural defects in solebars were obtained within the range of selected angles.
 Solebar testing has been more complicated because of a form and irregularity of scanning surface, necessity of its cleaning and a complex profile of back surface. Nevertheless the usage of phased array flaw detectors has made it possible to identify the back surface profile.
 Application of phased arrays substantially increases testing efficiency and improves visibility of obtained results.
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