论文部分内容阅读
提出了以基体晶粒与增强颗粒的直径之比作为颗粒增强金属基复合材料中颗粒分布均匀性的定量描述方法，以此为依据，模拟了Ａｌ２Ｏ３（ｐ）／Ａｌ－４％Ｍｇ复合材料铸件中的颗粒分布。结果表明，颗粒分布的均匀性随冷却速度、颗粒直径的增大而提高；试验结果与模拟结果吻合良好。
A quantitative description method for the uniformity of particle distribution in the particle reinforced metal matrix composites is proposed based on the ratio of the diameter of the matrix grains and the diameter of the reinforced particles. Based on this, the simulation results of the Al2O3 (p) / Al-4% Mg composite castings In the distribution of particles. The results show that the uniformity of particle distribution increases with the cooling rate and particle diameter. The experimental results are in good agreement with the simulation results.