Evaluation of SCC Distribution by Means of Focusing Ultrasonic Angle Beam
Fatigue cracks and SCC (Stress Corrosion Cracking) on a back surface were detected, and the shape of cracks were evaluated using a surface wave generated by focusing angle beam ultrasound. Internal ultrasonic images showed a little shorter length than optical images. Cross section of the fatigue crack and internal distribution of complicated shaped SCC were estimated.
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
T. Abe et al., "Evaluation of SCC Distribution by Means of Focusing Ultrasonic Angle Beam", Key Engineering Materials, Vols. 321-323, pp. 628-631, 2006