Table of Contents
International Scholarly Research Notices
Volume 2014, Article ID 795745, 9 pages
http://dx.doi.org/10.1155/2014/795745
Research Article

Effect of Test Parameters on the Friction Behaviour of Anodized Aluminium Alloy

1Laboratoire de Génie des Matériaux et Environnement (LGME), ENIS, Université de Sfax, B.P. 1173-3038, Tunisia
2IUT Mesures Physiques d’Orsay, Université Paris Sud, Plateau du Moulon, 91400 Orsay, France

Received 30 March 2014; Accepted 17 July 2014; Published 29 October 2014

Academic Editor: Shuen Huei Yao

Copyright © 2014 M. Guezmil 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

The tribological behaviour of anodic oxide layer formed on Al5754, used in automotive applications, was investigated against test parameters. The friction coefficient under different normal loads, sliding speeds, and oxide thicknesses was studied using a pin on disc tribometer. Results show that the increase of load and sliding speed increase the friction coefficient. The rise of contact pressure and temperature seems to cause changes in wear mechanism. Glow-discharge optical emission spectroscopy (GDOES) was used to investigate the chemical composition of the oxide layer. Morphology and composition of the wear tracks were analyzed by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). On the basis of these characterization techniques, a wear mechanism was proposed. The observed mechanical properties can be related to the morphology and the chemical composition of the layer.