Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1602401 | International Journal of Minerals, Metallurgy and Materials | 2009 | 5 Pages |
Abstract
The semisolid AlSi7Mg alloy slurry with large capacity was prepared by low superheat pouring and week traveling-wave electromagnetic stirring. The effects of electromagnetic stirring power and frequency on the shape and distribution of primary α-Al grains in the AlSi7Mg alloy slurry were discussed. The experimental results show that the AlSi7Mg alloy slurry with fine and spherical primary α-Al grains distributed homogeneously can be obtained. Under the condition of low superheat pouring and week traveling-wave electromagnetic stirring, when the pouring temperature is 630°C, raising the stirring power or frequency appropriately can gain a better shape of primary α-Al grains; but if the stirring power or frequency is increased to a certain value (1.72 kW or10 Hz), the shape of primary α-Al grains cannot be obviously improved and spherical primary α-Al grains distributed homogeneously can be still obtained.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Zhen-duo Zhao, Wei-min Mao, Sha Li, Rong-mao Zhong,