电磁振荡凝固诱导Al-Cu共晶合金宏观和微观组织的细化  

Refinement of Macrostructure and Microstructure of Al-Cu Eutectics Induced by Electromagnetic Vibration Solidification

作　　者：李虎田[1] 王强[1] 赫冀成[1] 时海芳[2] 张伟强[2] 

机构地区：[1]东北大学材料电磁过程教育部重点实验室,辽宁沈阳110004 [2]辽宁工程技术大学材料科学与工程系,辽宁卓新123000

出　　处：《热加工工艺》2008年第14期4-8,共5页Hot Working Technology

基　　金：高等学校学科创新引智计划资助项目(B07015);辽宁省博士启动基金资助项目(20071021);

摘　　要：通过在Al-Cu共晶合金凝固过程中同时施加稳恒磁场和交变电场的方式,在熔体中产生了电磁振荡,研究了电磁振荡对Al-Cu共晶合金宏、微观组织的影响。结果表明,适当控制电磁振荡过程参数,可使Al-Cu共晶合金中的宏、微观组织同时得以细化,并分析了组织演化的机理。Electromagnetic vibration in Al-Cu eutectic melt was introduced through the simultaneous imposition of steady magnetic field and alternating current. The influences of electromagnetic vibration on the solidified macrostructure and microstructure of Al-Cu eutectics were studied. The results show that simultaneously refined macrostructure and microstructure can be obtained by properly controlling process parameters. The mechanism after the refinement behavior was also analyzed.

关 键 词：电磁振荡 Al-Cu共晶合金 凝固 宏 微观组织 

分 类 号：TG111.4[金属学及工艺—物理冶金]