Effect of Squeeze Pressure on Microstructure, Aging and Mechanical Properties of A357/ ZrO2 Composite

被引：3
|
作者：
Abou El-Khair, M. T. [1 ]
机构：
[1] CMRDI, Composite Mat Lab, POB 87, Cairo, Egypt
来源：
INTERNATIONAL JOURNAL OF ENGINEERING RESEARCH IN AFRICA | 2011年 / 4卷
关键词：
Metal matrix composites; AlSiMg alloy; Squeeze casting; Microstructure; T6; treatment; Mechanical properties;
D O I：
10.4028/www.scientific.net/JERA.4.59
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
AlSiMg (A357) composites containing 10 vol. % zirconia (ZrO2) particulates have been synthesized by the stir process followed by squeeze casting. Pressures of 25 and 50 MPa were maintained during solidification in specially designed die and ram and maintained at 250 degrees C. Results show that with increasing squeeze pressure, the density increases while porosity decreases. The hardness of squeeze cast composite is higher than that of stir casting by about 10%. The compression properties have been evaluated and compared. The results show that compressive strength increases with squeeze pressure.
引用
收藏
页码：59 / 66
页数：8
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