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Advances in Materials Science and Engineering
Volume 2014, Article ID 724590, 12 pages
http://dx.doi.org/10.1155/2014/724590
Research Article

Processing Parameters Influence on Wear Resistance Behaviour of Friction Stir Processed Al-TiC Composites

1Department of Mechanical Engineering Science, University of Johannesburg, Auckland Park Kingsway Campus, Johannesburg 2006, South Africa
2Department of Mechanical Engineering, University of Ilorin, Ilorin, Nigeria
3School of Mechanical, Industrial and Aeronautical Engineering, University of the Witwatersrand, Johannesburg 2050, South Africa

Received 23 December 2013; Revised 20 March 2014; Accepted 24 March 2014; Published 15 June 2014

Academic Editor: Achilles Vairis

Copyright © 2014 E. T. Akinlabi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Friction stir processing (FSP) being a novel process is employed for the improvement of the mechanical properties of a material and the production of surface layer composites. The vital role of the integrity of surface characteristics in the mechanical properties of materials has made the research studies into surface modification important in order to improve the performance in practical applications. This study investigates the effect of processing parameters on the wear resistance behavior of friction stir processed Al-TiC composites. This was achieved through microstructural characterization by using both the optical and scanning electron microscope (SEM), microhardness profiling, and tribological characterization by means of the wear. The microhardness profiling of the processed samples revealed an increased hardness value, which was a function of the TiC particles incorporated when compared to the parent material. The wear resistance property was also found to increase as a result of the TiC powder addition. The right combination of processing parameters was found to improve the wear resistance property of the composites produced.