直流电场对Al-Si共晶合金凝固组织的影响  

Effect of Direct Current Electric Field on the Microstructure of Al-Si Eutectic Alloy

作　　者：黄立国[1] 张伟强[1] 

机构地区：[1]辽宁工程技术大学材料科学与工程系,辽宁阜新123000

出　　处：《材料开发与应用》2005年第3期8-10,共3页Development and Application of Materials

摘　　要：研究了直流电场作用下Al Si共晶凝固组织的变化。试验结果表明:电场作用改变了共晶Si的生长形态,随着电流密度的增加,共晶Si的形态经历一次细化的过程。初步分析了电场作用造成上述结果的机理。<Abstrcat> The effect of direct current electric field on the solidified structure of Al-Si eutectic alloy is studied. The experiment results show that the growing shape of eutectic Si changes under the influence of electric field and with the increase of current density, the eutectic Si is fined. The mechanism of the mentioned phenomenon is also analyzed.

关 键 词：直流电场 凝固组织 AL-SI共晶合金 

分 类 号：TG146.21[一般工业技术—材料科学与工程]