UT is one of the most widely used methods of nondestructive inspection in which beams of high-frequency sound waves are introduciced into materials for detection of surface and subsurface flaws in the componets and welds (voids, crack, inclusion, pipe, laminations, debonding, burst nad flake), to measure the thickness of materials, mainly to detect loss of thickness due to corrosion or erosion.
PENETRAN LIQUID TESTING
MAGNETIC PARTICLE MT
PORTABLE HARDNESS TESTING (HT)
The hardness, as it is used in industry, may be defined as the ability of a material to resist permanent indentation or deformation.