轨道交通制动盘用颗粒增强铝基复合材料研究及进展

Research progress on particle reinforced aluminum matrix composites for brake discs in rail transit

轨道交通装备轻量化是节能降耗、降低成本的有效手段。制动盘轻量化可减轻簧下重量,从而降低车辆运行阻力、减轻轨道压力,对降低运行及维护成本有重要意义。颗粒增强铝基复合材料具有低密度、高比强度、高比刚度等优点,因而成为轻量化轨道交通制动盘的关键材料之一。文章介绍颗粒增强铝基复合材料制备方法与增强颗粒对材料综合力学性能的影响;展望该类材料未来研究方向,以期为颗粒增强铝基复合材料轨道交通制动盘开发提供参考。

The lightweight of rail transit equipment is an effective way for energy saving and cost reduction.Lightweight brake discs can reduce the unspring mass,reduce the vehicle running resistance and the rail pressure,which is of great significance to reduce the operation and maintenance cost.Since particle reinforced aluminum matrix composite has the advantages of low density,high specific strength and high specific stiffness,they have become one of the key materials of lightweight rail transit brake discs.This paper introduces the preparation methods of particle reinforced aluminum matrix composites and the influence of reinforced particles on the comprehensive mechanical properties of materials.This paper looks at future research direction of particle reinforced aluminum matrix composites and provides reference for the development of aluminum matrix composite brake discs in rail transit.