Effect of Annular Electromagnetic Stirring on Microstructure and Mechanical Property of 7075 Aluminium Alloy

摘要：

　　Annular electromagnetic stirring (A-EMS) process,developed by General Research Institute for Non-Ferrous Metals,is an advanced processing technology for conditioning liquid metal prior to solidification processing.A-EMS can avoid skin effect effectively,impose a higher shear rate and a higher intensity of turbulence to the liquid metal,and increase the area of the melt heat dissipation by means of innovatively combining noncontact electromagnetic stirring and an annular chamber with specially designed profiles.The solidification structure,composition macro-segregation and property of 7075 alloy were investigated under the conditions of the conventional casting,the conventional electromagnetic stirring casting and A-EMS casting.The results indicated that A-EMS melt processing technology had significant effects on grain refinement,reduction of composition macro-segregation and improvement of mechanical properties.

关键词： 7075 alloy Annular electromagnetic stirring Structure and property Physical field

作者: Zhihua Gao Jun Xu Zhifeng Zhang Mengou Tang

作者单位: General Research Institute for Non-Ferrous Metals, Beijing, 100088, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 75-81

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）