Study on the ability of mechanical vibration for the production of thixotropic microstructure in A356 aluminum alloy

被引：75
作者：
Taghavi, F. [1 ,2 ]
Saghafian, H. [2 ]
Kharrazi, Y. H. K. [2 ]
机构：
[1] Maad Kimiya Farayand Consulting Engineers, Dept Engn, Tehran 1968953691, Iran
[2] Iran Univ Sci & Technol, Dept Mat & Met Engn, Tehran 1684613114, Iran
来源：
MATERIALS & DESIGN | 2009年 / 30卷 / 01期
关键词：
Mechanical vibration; Thixotropic microstructure; A356; alloy; SEMISOLID METAL SLURRIES; LOW-FREQUENCY VIBRATION; RHEOLOGICAL BEHAVIOR; FLUID-FLOW; SOLIDIFICATION; SIMULATION; VISCOSITY; GROWTH;
D O I：
10.1016/j.matdes.2008.04.034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present paper, efficiency of mechanical vibration for producing semisolid Slurry with thixotropic microstructure in an A356 aluminum alloy was studied. The effects of vibration frequency and time were investigated on the size and morphology of alpha-Al phase and grain refinement degree. It was observed that thixotropic microstructure could be obtained in the Al alloy by applying mechanical vibration. It was also found that size and morphology of alpha-Al phase were strongly affected by vibration frequency and time. (C) 2008 Elsevier Ltd. All rights reserved.
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页码：115 / 121
页数：7
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