Discussion about rules of correction coefficient of transverse hole longitudinal wave reflection amplitude of ultrasonic wave
The changes in the relationship between the reflection amplitude of ultrasonic wave and the curvature of test block was investigated.GH4169 alloy was selected as an example.The longitudinal wave reflection amplitudes of GH4169 standard test block and GH4169 contrast test block with different curvature,transverse pore diameter and buried depth were measured by water immersion method.The correction coefficients of longitudinal wave reflection amplitude with different pa-rameters were obtained.By comparing the correction coefficient of longitudinal wave reflection amplitude,the relationship between curvature,transverse pore diameter,buried depth and longitudinal wave reflection amplitude correction coefficient was explored.