In-situ Mg2Si/Al-Si-Cu composite modified by strontium

被引：56
|
作者：
Zhao, YG [1 ]
Qin, QD [1 ]
Liang, YH [1 ]
Zhou, W [1 ]
Jiang, QC [1 ]
机构：
[1] Jilin Univ, Dept Mat Sci & Engn, Key Lab Automobile Mat & Minist Educ, Changchun 130025, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2005年 / 40卷 / 07期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1007/s10853-005-0705-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The feasibility of modification with Al-Sr master alloy on hypereutectic Al-Si-Mg-Cu alloy was studied. It was found that the Al-Sr master alloy modified the primary Mg2Si in in-situ Mg2Si/Al-Si-Cu composite. It was observed that the morphology of primary Mg2Si changed from equiaxed or irregular to polygonal shape and its size decreased from ∼80 to ∼30 μm. It was shown that the formative dendritic structure of Mg 2Si under a higher cooling rate condition changed to regular polygon shape.
引用
收藏
页码：1831 / 1833
页数：3
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