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11 GH907合金固溶处理前后的组织

Fig.11 Structure of GH907 alloy before and after solution treatment (a) Macrostructures before solution treatment; (b) Microstructures before solution treatment; (c) SEM images before solution treatment; (d) Macrostructures after solution treatment; (e) Microstructures after solution treatment; (f) SEM images after solution treatment