Tensile behaviour of nano-particulate reinforced aluminium matrix composites at elevated temperatures

被引：3
|
作者：
Ahmed, A. [1 ]
Neely, A. J. [1 ]
Shankar, K. K. [1 ]
Chan, S. L. I. [2 ]
机构：
[1] UNSW ADFA, Sch Aerosp Civil & Mech Engn, Canberra, ACT, Australia
[2] UNSW, Sch Mat Sci & Engn, Sydney, NSW, Australia
来源：
PRICM 6: SIXTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-3 | 2007年 / 561-565卷
关键词：
aluminium matrix composites; particulate; tensile testing; high temperatures;
D O I：
10.4028/www.scientific.net/MSF.561-565.761
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The tensile behaviour of nanometric SiC particulate (SiCp) reinforced aluminium, matrix composites (AMCs) was examined at room temperature, 215 degrees C and 350 degrees C. These AMCs were produced via powder metallurgy (P/M) using Al 7075 powder reinforced with different volume fractions (1 vol.%, 3 vol.% and 5 vol.%) of nano-SiCp. The experimental results exhibit that at room temperature un-reinforced Al has both maximum strength and ductility whereas the 5 vol.% SiCp/Al composite has only maximum stiffness. Similar trends were obtained for tests performed at 215 degrees C. However at 350 degrees C, the 1 vol.% SiCp/Al composite has the highest stiffness. Optical microscopy and scanning electron microscopy were performed for microstructure study, examination of the SiCp distribution in the Al matrix and fractography.
引用
收藏
页码：761 / +
页数：2
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