Affiliation: | a Centre for Advanced Materials Technology, Department of Mechanical and Mechatronic Engineering, University of Sydney, NSW 2006, Sydney, Australia b School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China c Northwest Non-Ferrous Institute, Xi'an 710021, Shaanxi, People's Republic of China |
Abstract: | Joining characteristics of SiC particulate reinforced aluminium metal matrix composites (Al/SiCp-MMC) were investigated by vacuum diffusion bonding process. The joining performances of the similar and dissimilar composites were studied, and the influences of SiCp volume percentage and the insert alloy layer on bonding quality and properties of the bonded joints were also estimated. The experimental results indicate that the strength of vacuum diffusion bonded joints decreases with increasing SiCp volume percentage, and obtaining satisfactory bonding quality in the diffusion bonded joints of the dissimilar Al/SiCp-MMC is much more difficult than that of the similar Al/SiCp-MMC. Moreover, the results still manifest that the diffusion bonding either for the similar or for the dissimilar Al/SiCp-MMC, the suitable insert alloy layer can improve evidently the joining quality of joints, and the strength of diffusion bonded joints corresponding to using the insert alloy layer is apparently higher than that of no insert layer. |