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

表1 GH907合金的化学成分

Table 1 Chemical compositions of GH907 alloy (mass fraction, %)

C Ni Cr Co Ti Nb + Ta Si Fe 0.028 37.78 0.058 14.02 1.65 4.91 0.29 Bal.