不同磁场功率对ZM5-3%Ca阻燃镁合金凝固组织的影响  

Effect of Different Magnetic Field Power on Solidified Structure of Ignition-proof Magnesium Alloy ZM5-3%Ca

作　　者：周全[1] 涂序荣[1] 陈乐平[1] 

机构地区：[1]南昌航空大学航空制造工程学院,江西南昌330063

出　　处：《铸造技术》2010年第3期310-314,共5页Foundry Technology

基　　金：江西省教育厅资助项目(GJJ08208);江西省自然科学基金资助项目(2008GQC0035)

摘　　要：研究了不同功率的脉冲磁场和直流脉动磁场对ZM5-3%Ca阻燃镁合金凝固组织的影响。结果表明,脉冲磁场和直流脉动磁场对ZM5-3%Ca合金的凝固组织都有一定程度的细化作用;随着脉冲磁场或直流脉动磁场功率的增加,合金的晶粒尺寸逐渐减小,初生枝晶逐渐退化;与直流脉动磁场相比,脉冲磁场对合金凝固组织的细化效果更明显。Influence of different pulsed magnetic field power and DC pulsation magnetic field on solidified structure of ignition-proof magnesium alloy ZM5-3%Ca was investigated. The results show that solidified microstructure of ZM5-3% Ca alloy can be refined by pulsed magnetic field or DC pulsation magnetic field. As power of pulsed magnetic field or DC pulsation magnetic field increases, grain size of the alloy decreases and primary dendrite degenerates gradually. Compared with DO pulsation magnetic field, the effect of pulsed magnetic field on solidified structure of the alloy is more obvious .

关 键 词：磁场 阻燃镁合金 凝固组织 

分 类 号：TG244.3[金属学及工艺—铸造]