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.
作者
关天洋
张志峰
李泽琛
李豹
王平
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)
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
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)
关键词
环缝式电磁搅拌
熔体处理
组织
Annular Electromagnetic Stirring
Melt Treatment
Microstructure
