Die casting semi-solid ZL101 alloy prepared by inclined slope cooling-transferring method was conducted. Effects of processing parameters on properties of semi-solid rheoforming ZL101 alloy die castings were investigated

and the change of properties of the semi-solid die casting ZL101 parts after T6 heat treatment was analyzed. Mechanical properties of semi-solid die casting parts were comparatively analyzed with those of conventional die casting parts. The results reveal that

the semi-solid die casting parts exhibit desirable mechanical properties with pouring at 595 ℃ and injecting at 1.8 m/s

and the elongation is increased by 11% compared with that of conventional die casting parts at 630℃. Tensile strength and elongation of the semi-solid die casting parts after heat treatment are greatly improved. The fracture mechanism of both conventional die casting parts and semi-solid die casting parts are characterized by quasi-cleavage fracture

while semi-solid die casting parts after heat treatment are characterized by ductile fracture.