Table of Contents
International Journal of Metals
Volume 2013, Article ID 127106, 4 pages
http://dx.doi.org/10.1155/2013/127106
Research Article

Effects of Heat Treatment on the Mechanical Properties of Al-4% Ti Alloy

1Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria
2Department of Metallurgical and Materials Engineering, University of Lagos, Nigeria
3Department of Mechanical Engineering, University of Ilorin, Ilorin, Nigeria

Received 19 August 2013; Revised 29 October 2013; Accepted 30 October 2013

Academic Editor: Koppoju Suresh

Copyright © 2013 Segun Isaac Talabi 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

This paper examines the effects of heat treatment processes on the mechanical properties of as-cast Al-4% Ti alloy for structural applications. Heat treatment processes, namely, annealing, normalizing, quenching, and tempering, are carried out on the alloy samples. The mechanical tests of the heat treated samples are carried out and the results obtained are related to their optical microscopy morphologies. The results show that the heat treatment processes have no significant effect on the tensile strength of the as-cast Al-4% Ti alloy but produce significant effect on the rigidity and strain characteristic of the alloy. With respect to the strain characteristics, significant improvement in the ductility of the samples is recorded in the tempered sample. Thus, for application requiring strength and ductility such as in aerospace industries, this tempered heat treated alloy could be used. In addition, the quenched sample shows significant improvement in hardness.