AlSi9合金泡沫的二次发泡工艺及力学性能研究  

Two Step Foaming Processes and Compressive Properties of AlSi9 Foam Alloy

作　　者：赵明伟[1] 左孝青[1] 杨牧南[1] 王俊[1] 张喆[1] 

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093

出　　处：《热加工工艺》2013年第22期47-50,共4页Hot Working Technology

基　　金：国家自然科学基金项目(51164019);云南省应用基础研究重点项目(2010CC004)

摘　　要：采用二次发泡法制备AlSi9合金泡沫,对制备过程及影响孔结构的因素进行分析。研究了熔体温度、TiH2处理温度、TiH2搅拌分散时间、二次发泡温度和发泡时间对AlSi9合金泡沫孔结构变化的影响规律,得出了试验条件下优化的工艺参数配置。进行了AlSi9合金泡沫压缩性能测试,获得了孔隙率65%～77%AlSi9合金泡沫的压缩应力-应变曲线,并对AlSi9合金泡沫的压缩过程进行分析。A1Si9 foams were fabricated by two step foaming process. The relationship between cell structures and processing parameters such as melt temperature, heat-treated temperature of Till2, dispersion time of Till2, two step foaming temperature, foaming time were studied. The effects of processing parameters on the cell structure, optimized fabricating processing parameters were obtained. The mechanical properties of AISi9 foams alloy with porosity of 65%-77% were tested, and the compression process of the alloy was analyzed.

关 键 词：AlSi9合金泡沫 二次发泡 孔结构 压缩性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程]