本文对铍青铜(QBe2)超塑变形中的空洞形成过程和晶粒重排进行了研究。结果表明,空洞的形成直接影响着晶粒重排过程。晶粒重排以多重方式进行,而不是单一方式,形成空洞是其中的一个步骤。对于含有第二相粒子的 QBe2合金,其超塑变形中所产生的位错与第二相粒子的交互作用是导致空洞形成的重要原因。空洞的形成并不直接导致材料的断裂,而断裂的真正原因是空洞的连结。文中给出了描述晶粒重排和空洞形成与连结的示意图。 In this paper, the cavity formation process and grain rearrangement in the superplastic deformation of beryllium bronze (QBe2) were studied. The results show that the formation of voids directly affects the grain rearrangement process. Grain rearrangement in a multi-way, rather than a single way, the formation of holes is one of the steps. For the QBe2 alloy containing the second phase particles, the interaction between the dislocations generated in the superplastic deformation and the second phase particles is an important reason for the formation of voids. The formation of voids does not directly lead to the fracture of the material, and the real cause of the fracture is the empty link. The paper presents a schematic diagram describing grain rearrangement and cavity formation and attachment.