粉末高温合金FGH96惯性摩擦焊接头室温CTOD测试与分析  

CTOD Measurement and Analysis of P/M Superalloy FGH96 Inertia Friction Welding Joint

作　　者：何胜春[1] 廖云建[1] 杨美[2] 吴素君[2] 

机构地区：[1]中航工业北京航空制造工程研究所 [2]北京航空航天大学

出　　处：《航空制造技术》2012年第13期98-100,共3页Aeronautical Manufacturing Technology

摘　　要：FGH96是采用损伤容限设计思想研制的新型粉末高温合金,是满足高推比、高燃效发动机使用要求的涡轮盘、环形件和其他热端部件的理想材料。FGH96惯性摩擦焊接头的CTOD值小于母材,其断口的韧窝小于母材。母材和接头断裂路径均为穿晶断裂。P/M superalloy FGH96 is the late-model superalloy designed by the method of damage of tolerance limit. FGH96 is the most perfect material for turbine disk, loop-forming element and other components assembly of hot end to meet the challenge of high thrust-weight ratio and high efficiency aircraft engine. The value of CTOD of inertia friction welding joint is less than that of the matrix. The dimple of the joint is also less than that of the matrix. The fracture paths of joint and matrix are transcrystalline cracking.

关 键 词：粉末高温合金 惯性摩擦焊 CTOD 

分 类 号：TG407[金属学及工艺—焊接]