Effects of high magnetic field on modification of Al-Si alloy

被引:0
作者
Lian, F [1 ]
Qi, F
Li, TJ
Hu, GB
机构
[1] Dalian Univ Technol, Mat Engn Coll, Dalian 116024, Peoples R China
[2] Dalian Martitime Univ, Electormech & Mat Engn Coll, Dalian 116026, Peoples R China
关键词
high magnetic field; Al-Si alloy; modification;
D O I
暂无
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Effects of high magnetic field on modification of Al-6%Si hypoeutectic alloys Al-12.6%Si eutectic alloy and Al-18%Si hypereutectic alloy were studied. For the Al-6%Si alloy, it is found that the sample modified by Na-salt does not lose efficacy after remelting under high magnetic field. For the Al-12. 6%Si alloy, if the sample modified by Na-salt is kept at the temperature of modification reaction, high magnetic field can postpone the effective time of the modification. For Al-18%Si alloy modified by P-salt, the primary Si in solidified structure concentrates at the edge of the sample and eutectic Si appears in the center of the sample under the condition without high magnetic field, while the primary Si distributes evenly in the sample when the high magnetic field is imposed. It is thought that the high magnetic field restrains the convection of the melt.
引用
收藏
页码:1089 / 1095
页数:7
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