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在2618铝合金的基础上，添加SC、Zr，降低Cu量，配制实验合金，采用金相、X-射线衍射，透射电镜、硬度测量等手段，研究了实验合金冷轧板材经不同温度退火组织性能的变化，探讨了Sc对实验合金再结晶过程与退火行为的影响规律．结果表明，Al3（Sc，Zr）质点钉扎位借，稳定亚结构，迟滞以亚品聚合与长大为主的再结晶形核，同时也阻碍晶粒长大，因此，2618铝合金中添加Sc、Zr合金化可以提高再结晶温度；并细化再结晶组织．但Sc．Zr不宜过量，否则不利于稳定未再结晶组织；降低Cu量，虽然合金硬度下降，但是可能防止W相生成，要增添Sc、Zr含量，进一步推迟再结晶过程，提高再结晶温度．
On the basis of 2618 aluminum alloy, the addition of SC and Zr to reduce the amount of Cu, the preparation of experimental alloys, the use of metallographic examination, X-ray diffraction, transmission electron microscopy, hardness measurements and other means of experimental alloy cold-rolled sheet by different temperature annealing organization Performance of the experimental changes of the experimental recrystallization of the recrystallization process and the impact of annealing law. The results show that the Al3 (Sc, Zr) particles are pinned and stable sub-structure, delayed the recrystallization nucleation dominated by polymerization and growth of sub-products, and also hinder the grain growth. Therefore, adding 2618 aluminum alloy Sc, Zr alloying can increase the recrystallization temperature; and refine the recrystallization structure. But Sc. Zr should not be excessive, otherwise it is not conducive to stabilizing the non-recrystallized microstructure. Decreasing the Cu content may prevent the W phase from being formed, increase the contents of Sc and Zr, further delaying the recrystallization process and increasing the recrystallization temperature.