Microstructure Evolution of Cu-6%Ag Alloys by Modified Unidirectional Solidification under a Horizontal Static Magnetic Field

摘要：

　　The microstructure evolution of Cu dendrites in Cu-6%Ag alloys by modified unidirectional solidification under a static magnetic field has been investigated experimentally and quantitatively.The results show that the proeutectic Cu dendrites are finer when they are closer to the water-cooling copper mould and the unidirectional effect is more obvious,which is attributed to the higher solidification velocity.The quantitative analysis of the microstructure indicates that with increasing external magnetic flux density,the primary arms of the proeutectic Cu dendrites are refined and along a given direction.The analysis indicates that it is bothe the thermoelectromagnetic convection effect by the external magnetic field and the branch effect of the dendrites.

关键词： Cu-Ag unidirectional solidification microstructure evolution static magnetic field

作者: ZUUO Xiao-wei ZHAO Cong-cong MA Ming WANG En-gang HE Ji-cheng

作者单位: Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education),Northeastern University,Shenyang 11004,Liaoning,China

会议类型: 国际会议

会议名称: The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2012-10-22（万方平台首次上网日期，不代表论文的发表时间）