Interface structure and strength of ultrasonic vibration liquid phase bonded joints of Al2O3p/6061Al composites

The ultrasonic vibration liquid phase bonding of Al2O3p/6061Al in air has been investigated. The surface oxide film can be sufficiently removed, resulting in the bond metal turning into a composite material in which reinforcements are distributed uniformly and have metallurgical bonds with the matrix. The strength of bonded joints increases with the ultrasonic vibration amplitude.