Scratching brazing of SiC fibre reinforced
aluminum matrix composite
aluminum matrix composite
(National Key Laboratory of Advanced Welding Production Technology,
Harbin Institute of Technology, Harbin 150001, China)
Harbin Institute of Technology, Harbin 150001, China)
Abstract: The influence of brazing time on the shear strength of SiC/6061Al joints was carried out by scratching to break the oxide films on the matrix. The result shows when using 65.12Zn-20.82Al-12.05Cu-1.20Mg-0.17Mn, the shear strength of the joint is up to 70.8MPa; when using 93Zn-2.5Al-4.5Ag-0.15Si, the shear strength is up to 63.3MPa and when using 80Zn-Al, the shear strength is up to 49.2MPa. No matter what braze is used in these experiments, the shear strengths all improve with increasing brazing time.
Key words: brazing; shear strength; scratch