铸件中存在的显微孔隙,不仅降低其致密度,而且会降低铸件的抗拉强度,影响铸件的使用性能。本文对铝合金铸件中显微孔隙的研究现状进行了综述;介绍了显微孔隙的形成机理、实验研究及数学模拟方法; 讨论了显微孔隙的影响因素、预防及消除措施。并指出,可以通过显微孔隙的数学模拟,来预测铸件的机械性能。 The presence of micropores in the casting not only reduces its density, but also reduces the tensile strength of the casting and affects the performance of the casting. In this paper, the research status of micropores in aluminum alloy castings is reviewed. The formation mechanism, experimental research and mathematical simulation methods of micropores are introduced. The influencing factors, prevention and elimination measures of micropores are discussed. And pointed out that through the mathematical simulation of micropores to predict the mechanical properties of castings.