脉冲电流和脉冲磁场作用下LY12铝合金凝固组织的比较  

Comparison of the Solidified Structures in LY12 Al-alloy under Pulsed Electric Current and Pulsed Magnetic Field

作　　者：訾炳涛[1] 崔建忠[1] 巴启先[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110006

出　　处：《热加工工艺》2000年第4期3-5,共3页Hot Working Technology

基　　金：国家973项目资助课题!(批准号:G1999064900-05)

摘　　要：以我们所做的实验结果为根据 ,发现脉冲磁场对 L Y12铝合金凝固组织的细化效果要好于脉冲电流 ,并比较了脉冲电流和脉冲磁场这两种新颖的脉冲电磁场技术对其凝固组织的细化和机理差别、工作原理和特点 。Based on the data obtained in our experiment,it was found that the refining effect of pulsed magnetic field on the solidified structure in LY12 Alalloy was better than that of pulsed electric current.Differences of solidified structure and refining mechanisms,working principles and characteristics were compared of the two novel methods for refining solidified structure in LY12 Alalloy between pulsed magnetic field and pulsed electric current.The application prospects were also pointed out.

关 键 词：脉冲电流 脉冲磁场 晶粒细化 铝合金 凝固组织 

分 类 号：TG146.21[一般工业技术—材料科学与工程]