The microstructure, the shear strain and the micro-hardness around the sheared surface by plastic shearing of red copper bar under axial load were examined, and the sheared surfaces were observed by SEM.

• 研究了轴向压力作用下紫铜棒料塑性剪切分离面附近的微观组织形态、剪应变和硬度分布以及剪切分离面形貌。