环缝式电磁搅拌对Al-Zn-Mg-Cu合金组织的影响  

Effects of Annular Electromagnetic Stirring Melt Treatment on Microstructure of Al-Zn-Mg-Cu Alloy

作　　者：关天洋 张志峰[1] 李泽琛 李豹[1] 王平[2] Guan Tianyang;Zhang Zhifeng;Li Zechen;Li Bao;Wang Ping(General Research Institute for Non-Ferrous Metals;Key Laboratory of Ministry of Education for Electromagnetic Processing of Materials,Northeastern University;Beijing Aerospace Systems Engineering Institute)

机构地区：[1]北京有色金属研究总院 [2]东北大学材料电磁过程研究教育部重点实验室 [3]北京宇航系统工程研究所

出　　处：《特种铸造及有色合金》2018年第8期906-908,共3页Special Casting & Nonferrous Alloys

基　　金：国家国际科技合作计划资助项目(2015DFA51230)

摘　　要：Al-Zn-Mg-Cu合金因其元素种类多、含量高,且元素密度差异大,导致在凝固过程中存在成分偏析、易开裂等问题,难以采用普通铸造方法直接成形。对比研究了施加与未施加环缝式电磁搅拌熔体处理技术对Al-11.8Zn-2.9Mg-1.1Cu合金组织的影响。结果表明,施加环缝式电磁搅拌熔体处理能明显减小晶粒尺寸,减轻成分偏析,改善合金组织的均匀性。Due to many types of elements,high content and large differences in elemental density of AlZn-Mg-Cu alloy the segregation and crack in the solidification process are easily formed,so it is difficult to be conventional cast directly.Effects of Annular Electromagnetic Stirring（A-EMS）melt treatment for Al-11.8 Zn-2.9 Mg-1.1 Cu alloy under different castings conditions was carried out.The results reveal that,under A-EMS,grain refinement and homogeneity can be improved greatly,meanwhile,hot-cracking tendency in the casting process is significantly decreased.

关 键 词：环缝式电磁搅拌 熔体处理 组织 

分 类 号：TS206[轻工技术与工程—食品科学] TG246.21[轻工技术与工程—食品科学与工程]