Microstructure and Mechanical Performances of C/C Composite and TC4 Alloy Brazed Joints
C/C composite and TC4 alloy were successfully brazed using 70Ag28Cu2Ti (wt.%) as filler metal at 820 ℃~920 ℃ for 5 min ~30 min.The effects of brazing parameters on the microstructures,phase composition and the fracture modes of the brazed joints were investigated by SEM and XRD.The mechanical performances of the brazed joints were measured by a universal mechanical testing machine.The results show that the maximum shear strength of the brazed joint is 28 MPa at 860℃ for 10min.Fracture surface analysis of the brazed joints indicates that the position of the fracture surface is related to the orientation of carbon fiber.The brazed joints are fractured in the C/C composite when the carbon fiber is parallel to the joined surface,and the brazed joints are fractured at the C/C composite / 70Ag28Cu2Ti interface when the carbon fiber is vertical to the joined surface.
C/C composite TC4 alloy Brazing Microstructure Joint performances
Jiake Li Xin Liu Jianer Zhou
Jingdezhen Ceramic Institute,Jingdezhen 333001,P.R.China Jiangxi Key Laboratory of Advanced Ceramic Materials,Jingdezhen 333001,P.R.China
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
415-420
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）