Nucleation mechanism of the eutectic phases in aluminum-silicon hypoeutectic alloys

被引：163
|
作者：
Shankar, S [1 ]
Riddle, YW [1 ]
Makhlouf, MM [1 ]
机构：
[1] Worcester Polytech Inst, Adv Casting Res Ctr, Dept Mech Engn, MPI, Worcester, MA 01609 USA
来源：
ACTA MATERIALIA | 2004年 / 52卷 / 15期
关键词：
Al-Si; eutectic; nucleation; mechanism; hypoeutectic;
D O I：
10.1016/j.actamat.2004.05.045
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A theory is presented to explain the mechanism of formation of the eutectic phases in Al-Si hypoeutectic alloys. Results include optical, scanning and transmission electron microscopy, as well as selected area electron diffraction analysis and elemental X-ray mapping performed on Al-Si hypoeutectic alloy samples. The alloy samples had precisely controlled chemistry and were solidified at various cooling rates. The data presented support the proposed theory with microstructural and crystallographic evidence. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：4447 / 4460
页数：14
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