Die castings and heat treatment were used to improve the strength and ductility of Al-Cu alloy with high strength and ductility. The as-cast properties of ZL201 alloy were improved by adding alloying elements B

Zr

V to conduct die casting. Experimental results reveal that the microstructure of the Al-Cu alloy is greatly refined in die casting

in which as-cast properties is higher than those in permanent casting. The strength of die cast alloy is equivalent to that of conventional high strength die cast aluminum alloy after low temperature ageing

while its plasticity is in creased by 29%.