Powder metallurgy and hot-pressing sintering are used to successfully prepare ZK60 and ZK60-3.63Y alloys. The effectsof rare-earth Y addition on the texture evolutions, twinning behaviors, and nano-MgZn2 precipitates of ZK60 alloys arethoroughly investigated. In addition, the interactions between twinning behaviors and stacking fault energy are studied. Theaddition of rare-earth Y reduces the texture intensities of fine evenly equiaxed grains, and more extension twins are easilytriggered due to decreasing stacking fault energy. The boundary relationship ratios of the twins reach 20.3%, which is greaterthan that of the ZK60 alloy. Furthermore, more spindle nano-MgZn2 precipitates are detected, and the strength and ductilityof ZK60-3.63Y are improved. This method is efficient for preparing high-performance ZK60 alloys.
Powder metallurgy and hot-pressing sintering are used to successfully prepare ZK60 and ZK60-3.63Y alloys. The effectsof rare-earth Y addition on the texture evolutions, twinning behaviors, and nano-MgZn2 precipitates of ZK60 alloys arethoroughly investigated. In addition, the interactions between twinning behaviors and stacking fault energy are studied. Theaddition of rare-earth Y reduces the texture intensities of fine evenly equiaxed grains, and more extension twins are easilytriggered due to decreasing stacking fault energy. The boundary relationship ratios of the twins reach 20.3%, which is greaterthan that of the ZK60 alloy. Furthermore, more spindle nano-MgZn2 precipitates are detected, and the strength and ductilityof ZK60-3.63Y are improved. This method is efficient for preparing high-performance ZK60 alloys.