The role of Fe on the grain refinement of high purity aluminium

被引：0
|
作者：
Zhang, Yijie [1 ]
Ma, Naiheng [1 ]
Brian, Mckay [2 ]
Li, Xianfeng [1 ]
Wang, Haowei [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
[2] Brunel Univ, EPSRC Ctr Innovat Mfg Liquid Met Engn, BCAST, Uxbridge UB8 3PH, Middx, England
来源：
MATERIALS PROCESSING TECHNOLOGY II, PTS 1-4 | 2012年 / 538-541卷
基金：
英国工程与自然科学研究理事会;
关键词：
Grain refinement; Nucleation; Aluminium; PURE ALUMINUM; ALLOYS; MECHANISM; SOLIDIFICATION; AL; INOCULATION; NUCLEATION; MODEL;
D O I：
10.4028/www.scientific.net/AMR.538-541.2264
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The role of Fe on the grain refinement of high purity aluminium (HPA1) was investigated after adding commercial A1-5Ti-1B grain refiner rod. Experimental results show that with a 0.08% Fe addition, the grain structure at chill zone of the HPA1 sample changes from coarse to fine equiaxed grains. More importantly, the grain size observed at the centre of the HPA1 sample decreased from 500 +/- 50 mu m to 206 +/- 30 mu m. The improvement has been attributed to the interfacial segregation and solute concentration of the Fe at the solid-liquid interface.
引用
收藏
页码：2264 / +
页数：2
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