The Effects of Isothermal Temperature on the Microstructure of Semisolid A6070 Alloy Produced by SIMA Process

Abstract

The effects of isothermal temperature on the microstructure evolution of semisolid A6070 alloy produced by strain-induced melt activation process were investigated. The results showed that high semisolid isothermal temperature could make the semisolid particles more globular, but the size of the particles would grow larger and accelerate the spherical evolution of the solid particles. It was found that the optimal process temperature should be 620 °C and 10 min of isothermal temperature based on the conditions of this paper.