Evolution of Microstructure During Solidification of an Aluminium Alloy Under Stirring

被引：2
|
作者：
Barman, N. [1 ]
Dutta, P. [2 ]
机构：
[1] Jadavpur Univ, Dept Mech Engn, Kolkata 700032, India
[2] Indian Inst Sci, Dept Mech Engn, Bangalore 560012, Karnataka, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2012年 / 65卷 / 06期
关键词：
Solidification; Mechanical stirring; Microstructure; Solid fraction; Apparent viscosity; RHEOLOGICAL BEHAVIOR; SOLID FRACTION;
D O I：
10.1007/s12666-012-0192-z
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
In the present work, the evolution of microstructure during solidification of A356 alloy under stirring is performed experimentally in a high temperature concentric viscometer. The stirring during solidification results a semisolid slurry in the annular space between the cylinders. This slurry is removed periodically during processing using a vacuum removal quartz tube and quenched in water for micrograph analysis. From the micrograph analysis, the shape, stacking arrangement and corresponding microstructural evolution of the suspended primary particles in the slurry are studied. The work also predicts the fraction of solid present in the extracted slurry. Finally, the effect of microstructure and the solid-fraction on the slurry viscosity is presented.
引用
收藏
页码：683 / 687
页数：5
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