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Fracture analysis of a tungsten infiltrated copper gas rudder during assembly |
LIN Bingtao1, LI Hongbo2, XIN Feifei3, TANG Liangliang1, LI Ming1, SUN Xiaoxia4 |
1Advanced Technology and Materials Co., Ltd., Beijing 100081, China; 2Sichuan Academy of Aerospace
Technology, Chengdu 610100, China; 3No.203 Research Institute of China Ordnance Industries, Xi’an 710065,
China; 4 China University of Labor Relations, Beijing 100048, China |
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Abstract Taking a certain type of tungsten infiltrated copper gas rudder (brand W-7Cu) 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.
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Received: 04 August 2020
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