强脉冲磁场对Al-Cu共晶合金定向凝固组织的影响  

Effect of Strong Pulsed Magnetic Field on Unidirectional Solidification Microstructure of Al-Cu Eutectic Alloy

作　　者：牛晓武[1] 赵志龙[1] 刘林[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《热加工工艺》2006年第1期4-6,共3页Hot Working Technology

基　　金：国家863计划资助项目(2003AA305720)

摘　　要：用自行研制的脉冲磁场发生装置,研究了在强脉冲磁场作用下Al-Cu共晶合金的定向凝固组织,分析了脉冲磁场强度对合金定向凝固组织的影响。结果表明:脉冲磁场对Al-Cu合金凝固组织有着显著的细化作用;脉冲磁场强度对细化效果起着关键性的作用;同时指出了实验中的新现象和新问题。With the pulsed magnetic field equipment we made ourselves, the unidirectional solidification mlcrostructure ot Al-Cu eutectic alloy under the strong pulsed magnetic field was investigated and the effect of pulsed magnetic field intensity on unidirectional solidification microstructure of Al-Cu alloy was analysed. The results show that pulsed magnetic field can remarkably refine the microstructure of Al-Cu alloy. The refinement effect depends on the intensity of pulsed magnetic field. In the same time the new phenomena and problems that occurred in the experiment are pointed out.

关 键 词：脉冲磁场 定向凝固 Al-Cu共晶 显微组织 

分 类 号：TG146[一般工业技术—材料科学与工程] TG244.3[金属学及工艺—金属材料]