Table of Contents
Indian Journal of Materials Science
Volume 2015 (2015), Article ID 763618, 10 pages
http://dx.doi.org/10.1155/2015/763618
Research Article

Wear and Corrosion of Cast Al Alloy Piston with and without Brake Oil

1Metallurgical and Materials Engineering Department, Federal University of Technology, Akure, Akure 340252, Nigeria
2Materials and Metallurgical Engineering Department, Federal University Oye Ekiti, Oye Ekiti 371104, Nigeria

Received 26 May 2015; Revised 2 September 2015; Accepted 13 September 2015

Academic Editor: Pradeep Lancy Menezes

Copyright © 2015 Olawale Olarewaju Ajibola and Daniel Toyin Oloruntoba. 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 effects of wear and corrosion of cast AA6061 aluminium alloy were studied with and without brake fluid using a wear jig while the corrosion rate was determined in brake fluid for 70 days under two experimental set-ups. The tests, yielded 0.00000123 g/mm2/min highest wear rate at 147000 wear cycles and 0.0334 mg/mm2/yr as the highest corrosion rate within the early 39th day of immersion in oil, the values being considered comparatively lower than those obtained for Al alloy in most common wet abrasion test and corrosion in aqueous solutions as previously reported in literature. The material loss rates to wear and corrosion were determined from the equations relating to wear and corrosion based on the ASTM designations. The results show that the combined actions of wear and corrosion contribute to the total loss of piston material immersed in brake oil. This is greater than either of their effects individually on cast Al alloy in the brake oil.