Grain refinement of AZ31 magnesium alloy by electromagnetic stirring under effect of grain-refiner

被引：0
作者：
S Y GAO
Q C LE
Z Q ZHANG
J Z CUI
机构：
[1] Northeastern University,Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education
来源：
Bulletin of Materials Science | 2012年 / 35卷
关键词：
Low-frequency electromagnetic field; AZ31 magnesium alloy; Al; C; grain refinement;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effects of electromagnetic stirring and Al4C3 grain refiner on the grain refinement of semi-continuously cast AZ31 magnesium alloy were discussed in this investigation. The results indicate that electromagnetic stirring has an effective refining effect on the grain size of AZ31 magnesium alloy under the effect of Al4C3 grain refiner. Electromagnetic stirring can ‘activate’ the Al4C3 particles, resulting in more heterogeneous nucleation sites for the primary α-Mg grains. But, longer holding time can ‘deactivate’ the Al4C3 particles and poison the grain refining effect.
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页码：651 / 655
页数：4
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