某钨渗铜燃气舵装配过程断裂原因分析  

Fracture analysis of a tungsten infiltrated copper gas rudder during assembly

作　　者：林冰涛[1] 李洪波 辛飞飞 唐亮亮[1] 李明 孙晓霞[4] LIN Bingtao;LI Hongbo;XIN Feifei;TANG Liangliang;LI Ming;SUN Xiaoxia(Advanced Technology and Materials Co.,Ltd.,Beijing 100081,China;Sichuan Academy of AcrospaceTechnology,Chengdu 610100,China;No.203 Research Institute of China Ordnance Industries,Xi'an 710065,China;China University of Labor Rclations,Beijing 100048,China)

机构地区：[1]安泰科技股份有限公司,北京100081 [2]四川航天系统工程研究所,四川成都610100 [3]中国兵器工业第203研究所,陕西西安710065 [4]中国劳动关系学院,北京100048

出　　处：《粉末冶金工业》2021年第2期113-118,共6页Powder Metallurgy Industry

摘　　要：以某型号钨渗铜燃气舵(牌号W-7Cu)为研究对象,针对产品在装配过程出现的断裂现象进行分析。结果表明:断裂方式以穿晶断裂为主,沿晶断裂并存;断口和其他部位的微观组织无明显区别;应力集中是导致材料断裂的原因,提出了加强对连接位置的防护或结构改进,避免应力集中造成破坏的建议。Taking a certain type of tungsten infiltrated copper gas rudder(brand W-7 Cu) as the research object, the fracture phenomenon of the product in the assembly process was analyzed. The results show that transgranular fracture is the main fracture mode and intergranular fracture coexists. There is no obvious difference in microstructure between fracture and other parts. Stress concentration is the cause of material fracture. It is suggested to strengthen the protection of connection position or improve the structure to avoid damage caused by stress concentration.

关 键 词：钨渗铜 燃气舵 断裂 应力集中 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]