颗粒增强锌基复合材料研究现状与展望

Current Status and Development of Zinc Matrix Composites Reinfoced by Particulates

颗粒增强锌基复合材料是当前研究较多、比较成熟、应用较广泛的金属基复合材料。综述了颗粒增强锌基复合材料的制备方法、界面微观结构、力学性能及摩擦磨损性能等的研究现状,分析了存在的技术难题,提出了今后的研究重点和发展方向。指出,喷射沉积快速凝固技术是继承传统铸造与粉末冶金发展起来的一种新型快速凝固技术,它将金属熔体的雾化和雾化液滴的沉积两个过程合为一体,直接由液态金属制备具有快速凝固组织特征的大块金属实体,是一种很有潜力的纳米颗粒增强锌基复合材料制备技术。

The particle reinforced Zn-matrix composites is one of more extensive development and application in the metal matrix composites. The current status, fabrications methods, mechanical properties, wear resistance and interface problems are reviewed. The existent problems are discussed. Further research emphasis and development directions are also predicted. Spray deposition is a novel rapid solidification technology. During spray deposition, a liquid metal stream is atomized into a spray of droplets by high-pressure gas jets and subsequently these atomized droplets are deposited and solidified on a substrate. Spray deposition is an available fabrications method to obtain zinc matrix composites reinforced by nano particles.