Abstract

Abstract Vibration liquid phase bonding for SiCp/A356 composites in air was investigated. Vibration can disrupt and extrude the oxide inclusion layer on the surface of the composites. The metallurgical bond between the filler metal and the matrix forms during vibration liquid phase bonding, and the tensile strength of the joints increase with the vibration time. During vibrating, the residual liquid filler metal layer in the joint is squeezed out, and mix with the base metal, the primary Zn–Al–Cu hyper-eutectic in the joints transforms into Al-rich Al-base solid solution (α-Al), a composite bond reinforced by original and broken-up SiC particle forms.

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