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系统研究了循环形变铜单晶体中宏观形变带的产生规律和特征及相应的位错结构，并对其形成机制进行了综合探讨。结果表明，在不同取向铜单晶体的循环形变中，形变带DBI近似沿主滑移面（111）发展，而DBII的惯习面接近传统的扭折面｛101｝，两者成严格的正交分布。这两类形变带的形成可能与循环加载中产生的晶体不可逆旋转密切相关，此外，有利的宏观应力状态也可能导致其它形变带的出现。对于不同取向铜单晶体，形变带可能具有很不相同的位错结构，如PSBs的楼梯结构或迷宫结构等。
The generation regularity and characteristics of macroscopic deformation zone and the corresponding dislocation structure were systematically studied, and the formation mechanism of the deformation was investigated. The results show that the deformation band DBI develops along the main slip surface (111), while the habit plane of DBII approaches the traditional kink {101} in the cyclic deformation of different orientations of copper single crystal. The two are strictly orthogonal distributed. The formation of these two types of deformation bands may be closely related to the irreversible rotation of crystals generated by cyclic loading. In addition, favorable macro-stress states may also lead to the appearance of other deformation bands. For different orientation of single crystal copper, the deformation zone may have very different dislocation structures, such as the staircase structure of PSBs or labyrinth structure.