·1280· 工程科学学报，第38卷，第9期 画 m 图1两种合金未时效原始组织形貌.(a,c)GH4169:(b,d)GH4169C Fig.1 Microstructures of the alloys without aging:(a,c)GH4169:(b,d)GH4169C b d 图2两种合金在600℃时效不同时间组织形貌.(a)GH4169,2000h:(b)GH4169C,2000h:(c)GH4169,10000h:(d)GH4169C,10000h Fig.2 Microstruetures of the alloys after aging at 600C:(a)GH4169,2000h:(b)GH4169C,2000h:(c)GH4169,10000h:(d)GH4169C. 10000h工程科学学报，第 38 卷，第 9 期 图 1 两种合金未时效原始组织形貌 . ( a，c) GH4169; ( b，d) GH4169C Fig． 1 Microstructures of the alloys without aging: ( a，c) GH4169; ( b，d) GH4169C 图 2 两种合金在 600 ℃时效不同时间组织形貌 . ( a) GH4169，2000 h; ( b) GH4169C，2000 h; ( c) GH4169，10000 h; ( d) GH4169C，10000 h Fig． 2 Microstructures of the alloys after aging at 600 ℃ : ( a) GH4169，2000 h; ( b) GH4169C，2000 h; ( c) GH4169，10000 h; ( d) GH4169C， 10000 h ·1280·