Rheological model of semisolid Mg2Si/AM60 composites prepared by ultrasonic vibration treatment

The rheological behavior of semisolid Mg 2 Si/AM60 composites prepared by ultrasonic vibration treatment was investigated. The effects of primary α-Mg solid content, the ultrasonic power and the content of reinforcement phase Mg 2 Si on the apparent viscosity of semisolid composites were discussed. The results show that the apparent viscosity of the semisolid composites increases with the increase in α-Mg solid content. Meanwhile, the apparent viscosity decreases with the increase in ultrasonic power, and the reduction amplitude is higher when the solid content is higher. In addition, the apparent viscosity increases with the increase in Mg 2 Si content. Based on experimental data fitting, the rheological model of semisolid Mg 2 Si/AM60 composites prepared by ultrasonic vibration was established.