On grain refinement and titanium segregation in Al-Si alloy

被引：0
|
作者：
MI Guo-fa [1 ]
Wang Kullang-fei [1 ]
Wen Tao [1 ]
Zhang Ming [2 ]
Wang Hong-wei [2 ]
Zeng Song-yan [2 ]
机构：
[1] Henan Polytech Univ, Sch Mat Sci & Engn, Jiaozuo 454000, Peoples R China
[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
来源：
CHINA FOUNDRY | 2007年 / 4卷 / 04期
关键词：
aluminum-silicon alloy; Ti segregation; grain refinement;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influence of holding time and distance from sample bottom on segregation and grain refinement of Ti was studied. Results show that Al-5Ti-1B has an obvious effect on refinement in Al-Si alloy after 4 h holding time. The segregation of Ti shows different morphology at different positions of casting. More segregation is at the bottom of castings because of localized congregation of Ti. The research shows that the difference in Ti concentration is as high as 25.6% between the top and bottom of castings.
引用
收藏
页码：273 / 275
页数：3
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