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用透射电镜观察了纯铝拉伸变形和变形后退火试样的位错组态。对其位错密度等微观参数进行了测定。结果表明,位错组态主要由位错网络和胞状组织组成。随变形度增加,位错密度和胞壁内的位错密度增加,胞状组织明显。测得位错密度在10~9cm~(-2)数量级,胞状组织直径为0.7～1.4μm,胞壁厚度约0.2μm。
Transmission electron microscopy was used to observe the dislocation configuration of pure aluminum after tensile deformation and deformation. The dislocation density and other micro-parameters were measured. The results show that the dislocation configuration mainly consists of dislocation network and cellular structure. With the increase of deformability, dislocation density and dislocation density in the cell wall increased, cell structure was obvious. The measured dislocation density is in the order of 10 ~ 9cm ~ (-2), the diameter of cellular structure is 0.7 ~ 1.4μm and the cell wall thickness is about 0.2μm.