Process for improving age hardening effect of high-zinc deformed magnesium alloy

The invention discloses a process for improving an age hardening effect of a high-zinc deformed magnesium alloy. The method comprises the following steps of: firstly, carrying out homogenization treatment onto an alloy ingot; then, crushing non-equilibrium compounds in the alloy by thermally processing; and finally, facilitating the compounds to dissolve as much as possible by adopting two-step gradient-type solid solution treatment. The process disclosed by the invention can be used for effectively facilitating the dissolving of non-equilibrium eutectic crystals in a high-zinc Mg-ZN-Al ternary alloy, improving the super-saturation degree of Zn and Al elements in the matrix and strengthening the age hardening effect of the high-zinc deformed magnesium alloy. Compared with the conventional T6 treatment, the treatment time is greatly shortened and the production efficiency is effectively improved.