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对弥散质点和SiC颗粒复合强化铝基复合材料的拉伸蠕变研究表明，复合强化铝基复合材料比单纯弥散强化的基体合金的蠕变速率低2—4个数量级：复合材料和基体合金的蠕变应力指数和蠕变激活能比纯Al的大.用门槛应力的概念对蠕变数据进行分析表明、这种复合材料蠕变是由基体晶格扩散控制的
Tensile creep studies of dispersive particles and SiC particles reinforced aluminum matrix composites show that the creep rate of the matrix composites reinforced with aluminum matrix composites is 2-4 orders of magnitude lower than that of the matrix composites reinforced with matrix composites Creep stress index and creep activation energy are larger than pure Al. Analysis of creep data using the concept of threshold stress shows that the creep of this composite material is controlled by the matrix lattice diffusion