Preliminary Research on Brazability of SiC Particulate Reinforced Aluminium-based Composites
SiCp/A356 composites containing 20% (volume fraction) SiC and three kinds of different filler metals were investigated by vacuum brazing process.Brazability of SiCp/A356 composites was analyzed after nickel plating on the surface of composites and without nickel plating process.The effects of holding time on microstructure of the brazed joints of SiCp/A356 composite were studied by metallographic microscope,SEM and Energy spectrum analysis.The results show that nickel plating on the surface of composite contribute to improve brazability of SiCp/A356 composites prominently,while inferior brazability displayed without nickel plating on the surface of composites.Hardness of joints brazed at holding time of 6 min,8 min and 10 min were studied,consequently the hardness of the weld seam region is the highest when the holding time was 8 min.
SiC composite vacuum brazing nickel plating holding time
Xu Dong xia Chen Long Xu Bin Han Fei
College of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, China College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technolo North Navigation Control Technology Co.,Ltd., Beijing, China
国际会议
北京
英文
518-521
2012-12-16（万方平台首次上网日期，不代表论文的发表时间）