Al-10%Mg中间合金细化Al-5%Fe合金的研究  

Grain Refinement Behavior of Al-10%Mg Master Alloy on Al-5%Fe Alloy

作　　者：王正军[1] 

机构地区：[1]宿迁学院,江苏宿迁223800

出　　处：《铸造技术》2009年第9期1161-1163,共3页Foundry Technology

基　　金：江苏省2008年度高校"青蓝工程"优秀青年骨干教师基金项目资助

摘　　要：通过改变Al-10%Mg中间合金晶粒细化剂加入量和熔体保温时间,研究了过共晶Al-5%Fe合金微观组织形态及力学性能。试验表明,在过共晶Al-5%Fe合金中加入Al-10%Mg中间合金细化剂,当加入量为1.2%、保温时间为90 min时,细化效果仍较好,Al-5%Fe合金中初生A13Fe相由粗大板条状变为花朵状和颗粒状,尺寸明显减小,材料的强度和塑性明显提高。By changing the addition and holding time, the influences of Al-10% Mg refiner on the microstructure and mechanical property of hypereutectic Al-Fe alloy were investigated. The results indicate that when adding 1.2% AI-10%Mg master alloy and the holding time of melt was 90 min, better refine efficiency can be obtained. The primary Al3 Fe phase changed from coarse plate-like to fine particle-like and flower-like, with finer size, which can increase the tensile strength and plasticity of the materials.

关 键 词：Al-10%Mg中间合金 晶粒细化 AL-5%FE合金 

分 类 号：TG27[金属学及工艺—铸造]