GH907合金机匣锻环的超声衰减性能与其组织的关系

吕涛, 刘芳, 刘畅, 董德秀, 张伟红, 蔡桂喜

Influence of Microstructure on Ultrasonic Attenuation of Forged GH907 Alloy Ring for Aero Engine Turbine Casing

LV Tao, LIU Fang, LIU Chang, DONG Dexiu, ZHANG Weihong, CAI Guixi

图2 典型不合格GH907合金锻环的超声扫查结果

Fig.2 Ultrasonic scanning results of GH907 alloy forged ring (a) defect amplitude imaging; (b) bottom wave amplitude imaging; (c) location amplitude distribution curve