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对稀土化合物增强ＺＡ２７ 合金的组织及耐磨性做了研究。试验发现， 由于在ＺＡ２７ 合金中加入一定量的ＲＥ 和Ｓｉ 元素， 组织中出现一些颗粒状第二相； 这些物相分布在晶界及枝晶间， 阻止了晶粒长大。通过透射电镜能谱分析发现， 该物相是一种含有Ｚｎ，Ａｌ，Ｓｉ 及ＲＥ 元素的复杂化合物。经测试，这种物相的显微硬度要比基体高得多。耐磨性等性能试验结果表明， 这种合金的耐磨性要比ＺＡ２７ 合金高４ 倍， 比Ｓｉ 相增强合金也高， 而且其冲击韧性要比Ｓｉ 相增强合金高得多。
Rare earth compounds enhance ZA 27 alloy structure and wear resistance were studied. It was found that due to the addition of a certain amount of RE and Si elements in the ZA27 alloy, some granular second phases appeared in the microstructure. These phases distributed between the grain boundaries and dendrites and prevented the grain growth. The results of TEM showed that the phase was a complex compound containing Zn, Al, Si and RE. After testing, the micro-hardness of this phase is much higher than the substrate. Abrasion resistance and other performance test results show that the wear resistance of this alloy than ZA 27 alloy 4 times higher than the Si-phase strengthening alloy is also high, and its impact toughness than the Si-phase reinforced alloy is much higher.