Feasibility study of thermo-compensated resistance brazing welding of C/C composites and T2 copper with AgCuTi filler metal

作     者：Jiang YU Xinglin MIAO Hongtao ZHANG Bo WANG Changming QU Peng HE Jiang YU;Xinglin MIAO;Hongtao ZHANG;Bo WANG;Changming QU;Peng HE

作者机构：State Key Laboratory of Advanced Welding and JoiningHarbin Institute of TechnologyHarbin 150001China Institute for Shipwelding TechnologyShandong Institute of Shipbuilding TechnologyWeihai 264209China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2023年第36卷第5期

页      面：534-548页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 082503[工学-航空宇航制造工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 080201[工学-机械制造及其自动化] 

基　　金：supported by the National Natural Science Foundation of China(No.52175305) the Industrial Innovation Major Technology Global Unveiling Project of Jining City,China(No.2022JBZP004) the New and Old Kinetic Energy Conversion Major Industrial Research Projects in Shandong Province in 2021,China 

主　　题：AgCuTi C/C composites Copper Resistance Brazing welding Shear strength 

摘      要：The dissimilar materials joining of C/C composites to T2 copper were performed successfully by thermo-compensated Resistance Brazing Welding(RBW)with AgCuTi filler *** interfacial microstructure,phase composition,and shear strength of the resistance brazed joints were investigated by the relevant analysis *** results indicated that the order affecting the shear strength of the C/C-Cu joint was welding current,welding pressure,and welding time in *** shear strength of backward thermo-compensated RBW was higher than that of forward thermo-compensated RBW due to the Peltier *** maximum shear strength of the C/C-Cu joint was 11.56 MPa in the optimized welding parameter with welding current of 8.0 kA,welding time of 60 ms,and welding pressure of 0.10 MPa by backward thermo-compensated *** interface structure at the resistance brazed joint with this welding parameter was C/C composites/TiC/Cu(s.s)/T2 *** TiC phase was verified at the interface of the brazed joint by Scanning Electron Microscope(SEM),Energy-Dispersive X-ray Spectrometer(EDS),and X-ray Diffraction(XRD).Considerable fractures occurred in the C/C composites and partial fracture occurred at the interfacial reaction layer.