Paper Title:
Tensile Behaviour of Nano-Particulate Reinforced Aluminium Matrix Composites at Elevated Temperatures
  Abstract

The tensile behaviour of nanometric SiC particulate (SiCp) reinforced aluminium matrix composites (AMCs) was examined at room temperature, 215°C and 350°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°C. However at 350°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.

  Info
Periodical
Materials Science Forum (Volumes 561-565)
Main Theme
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
761-764
DOI
10.4028/www.scientific.net/MSF.561-565.761
Citation
A. Ahmed, A.J. Neely, K.K. Shankar, S. L. I. Chan, "Tensile Behaviour of Nano-Particulate Reinforced Aluminium Matrix Composites at Elevated Temperatures", Materials Science Forum, Vols. 561-565, pp. 761-764, 2007
Online since
October 2007
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