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On grain refinement and titanium segregation in Al-Si alloy

中国铸造2007，Vol.4Issue(4)：273-275,3.

On grain refinement and titanium segregation in Al-Si alloy

作者信息

1. School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China;School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China;School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China;School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China
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摘要

Abstract

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.

关键词

aluminum-silicon alloy/Ti segregation/grain refinement

Key words

aluminum-silicon alloy/Ti segregation/grain refinement

分类

矿业与冶金

引用本文复制引用

..On grain refinement and titanium segregation in Al-Si alloy[J].中国铸造,2007,4(4):273-275,3.

基金项目

The project is supported by the Innovation Fund for Outstanding Scholar of Henan province(No.0621000700) （No.0621000700）

中国铸造

OASCI

ISSN：1672-6421

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