环缝式电磁搅拌对Al-Zn-Mg-Cu合金组织的影响

关天洋; 张志峰; 李泽琛; 李豹; 王平

doi:10.15980/j.tzzz.2018.08.025

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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
2018年38卷第8期页码：906-908
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.08.025

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[1]关天洋,张志峰,李泽琛,李豹,王平.环缝式电磁搅拌对Al-Zn-Mg-Cu合金组织的影响[J].特种铸造及有色合金,2018,38(08):906-908.

Guan Tianyang, Zhang Zhifeng, Li Zechen, et al. Effects of Annular Electromagnetic Stirring Melt Treatment on Microstructure of Al-Zn-Mg-Cu Alloy[J]. Special Casting & Nonferrous Alloys, 2018,38(8):906-908.
[1]关天洋,张志峰,李泽琛,李豹,王平.环缝式电磁搅拌对Al-Zn-Mg-Cu合金组织的影响[J].特种铸造及有色合金,2018,38(08):906-908. DOI： 10.15980/j.tzzz.2018.08.025.

Guan Tianyang, Zhang Zhifeng, Li Zechen, et al. Effects of Annular Electromagnetic Stirring Melt Treatment on Microstructure of Al-Zn-Mg-Cu Alloy[J]. Special Casting & Nonferrous Alloys, 2018,38(8):906-908. DOI： 10.15980/j.tzzz.2018.08.025.

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。

Abstract

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.