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通过测试自然时效和人工时效的强度－时间关系曲线，以及采用金相显微镜、透射电镜和扫描电镜观察，探讨了微量锆对经８０℃轧制的Ｚｎ２２％Ａｌ合金显微组织和力学性能的影响。结果表明，在低于８０℃的温轧温度下时效时，加０．０８％～０．３２％Ｚｒ和不加Ｚｒ的Ｚｎ２２％Ａｌ合金的强度保持不变。锆具有细化Ｚｎ２２％Ａｌ合金的组织并阻碍时效时晶粒长大和等轴程度降低的作用。锆还可提高Ｚｎ２２％Ａｌ合金的强度和时效时力学性能的稳定性。在三个不同含锆量的Ｚｎ２２％Ａｌ合金中，含０．１８％Ｚｒ的合金强度最高，而且最稳定。
The microstructure and mechanical properties of Zn22% Al alloy rolled at 80 ℃ were investigated by measuring the intensity-time curves of natural aging and artificial aging, as well as the observation by metallographic microscope, transmission electron microscopy and scanning electron microscopy. Impact. The results show that the strength of 0.022% ~ 0.32% Zr and Zr22% Al alloy without Zr remain unchanged at aging temperature below 80 ℃. Zirconium has a refinement of the microstructure of Zn 22% Al alloy and hinder aging aging grain growth and the role of the degree of reduction. Zirconium can also improve the strength of Zn 22% Al alloy and mechanical properties when aging stability. In three different zirconia content of Zn 22% Al alloy containing 0.18% Zr alloy the highest strength, and the most stable.