过共晶铝硅合金的制备与性能研究  

Preparation and Property Study of Hypereutectic Aluminum-silicon Alloy

作　　者：王宇鑫[1,2] 严鹏飞[1] 严彪[1] 

机构地区：[1]同济大学材料科学与工程学院,上海200092 [2]上海市金属功能材料开发应用重点实验室,上海200092

出　　处：《金属功能材料》2010年第6期14-16,共3页Metallic Functional Materials

基　　金：国家973项目子课题(NO.2007CB613900);上海市科学技术发展基金(08DZ2201300);上海市纳米专项(0752nm004)资助项目

摘　　要：采用水雾化法制备了Al-20Si-0.35Re过共晶铝硅合金粉末,对合金粉末进行了热压烧结,测试了导电率和显微硬度随热压压强的变化。结果表明:采用水雾法可制得含氧量低、粒度分布较好的合金粉末,热压后的块体样品导电率和显微硬度均随着热压压强的增大而提高。Al-20Si-0.35Re power was prepared by water atomization method and then hot-pressed under different pressure.The conductivity and micro-hardness were tested.Results show that it can get fine size distribution and low oxygen powder from the water atomization process.The conductivity and micro-hardness of hot-pressed alloy are increased with the increasing pressure.

关 键 词：水雾化法 过共晶铝硅合金 导电率 显微硬度 

分 类 号：TG146.21[一般工业技术—材料科学与工程]