在碰撞过程退火阶段，点缺陷将聚集形成的团簇，影响后续的微观组织演化过程，如碰撞级联中点缺陷的复合和湮灭过程以及晶体的力学性能。探讨了Cr和Al对团簇的产生与长大的影响。

In the annealing stage of the collision process, the point defects will aggregate into clusters, which will affect the subsequent microstructure evolution process, such as the recombination and annihilation process of point defects in the collision cascade and the mechanical properties of the crystal. The effects of Cr and Al on the formation and growth of clusters were discussed.