离心铸造Al-24%Si合金自生梯度复合材料  

In Situ Gradient Composites of Al-24wt%Si Alloy by Centrifugal Casting

作　　者：杨新[1] 

机构地区：[1]海军装备部综合计划部,北京100841

出　　处：《武汉船舶职业技术学院学报》2013年第3期24-27,共4页Journal of Wuhan Institute of Shipbuilding Technology

摘　　要：本文通过改变离心铸造的转速,获得了初晶Si由外向内或由内向外富集的Al-24wt%Si合金自生梯度复合材料。分析了复合材料的形成过程,考察了复合材料的组织、硬度和初晶Si的分布。In situ gradient composites of Al-24wt;Si alloy, which possess the microstructures of accumulated primary silicon from inner layers to outer layer or from outer layer to inner layer, have been achieved using changing the rotation rate of centrifugal casting. The forma- tion process of the composites has been analyed, and the structure, hardness and distribution of primary silicon.

关 键 词：离心铸造 Al-24%Si合金 自生复合材料 外层或内层梯度复合材料 

分 类 号：TG146.2[一般工业技术—材料科学与工程]