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ISRN Mechanical Engineering
Volume 2012 (2012), Article ID 461853, 9 pages
http://dx.doi.org/10.5402/2012/461853
Research Article

Mechanical Characteristics of 6063 Aluminum-Steel Dust Composite

Department of Metallurgical and Materials Engineering, University of Lagos, Lagos, Nigeria

Received 30 May 2012; Accepted 2 July 2012

Academic Editors: J. Botsis and F. Liu

Copyright © 2012 S. O. Adeosun 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

Studies on the effect of steel dust (EAF dust) addition on the mechanical properties of 6063 Aluminium alloy have been carried out. The cast composite samples contain steel dust from 2–20 wt% produced in sand mould. These cast samples were homogenized, cold rolled, and solution-treated. The solution treated samples were normalized in still air, some quenched in water while some were tempered after quenching. Tensile and hardness responses were determined in all these processed samples. The results obtained reveal that 10 wt% steel dust in aluminium 6063 improved the ultimate tensile strength to 111.09 MPa and a corresponding hardness of 51.2 HV. Microstructural analysis shows iron containing intermetallics which are well distributed in the matrix with its morphology depending on the heat treatment and deformation imposed on them. Tensile strength and hardness of the composites was also found to depend on the volume fraction of intermetallics in the matrix.