Ultrasonic vibration effect in the development of Al/CCLW/alumina metal matrix composite to enhance mechanical properties

This study represents the enhancement in mechanical, metallurgical, and thermal properties of composite synthesized by ultrasonic vibration effect. Collagen powder in the form of Cr 2 O 3 was derived from chrome-containing leather waste (CCLW). Collagen powder and Al 2 O 3 ceramic particles have been used to reinforce the development of an AA6061 aluminum alloy-based composite. Results showed that the composite developed under the ultrasonic vibration process showed better results by adding only 7.5% reinforcement particles (3.75% collagen + 3.75% Al 2 O 3 ) to the matrix material as compared to the composite developed by the stir casting technique. The tensile strength and hardness were improved by about 40.41% and 44.27%, respectively when the composite was developed under the ultrasonic vibration effect. The compressive strength of composite material developed under the ultrasonic vibration effect was also improved by about 13.80% concerning the base material.