双辊快速凝固制备颗粒增强铝基复合材料的新途径

New Approaches for Processing of Rapidly Solidified Particulate Reinforced Aluminium Matrix Composites by Doubleroller Method

为了制备基体晶粒细小、增强颗粒分布均匀且与基体结合良好、界面上无明显反应产物的颗粒增强铝基复合材料，在铝及铝合金双辊快速凝固技术研究的基础上，提出了同步喷射增强颗粒和结合熔体接触反应法的两种双辊快速凝固制备方法，介绍了这两种方法制备颗粒增强铝基复合材料的思路，阐述了制备的复合材料的潜在特点。

For the preparation of particulate reinforced aluminium matrix composites with strongly refined microstructure, uniformly distributed particles in the matrix, and good bond and very little reaction between particles and matrix materials, two approaches, by blowing particles into the melt puddle between the twinroller and by ejecting the composite melt produced by insitu contact reaction into gap between the twinroller, have been proposed based on rapid solidification of aluminium alloys by doubleroller method The potential advantages of the composites prepared by the methods were presented