Table of Contents
International Journal of Metals
Volume 2014 (2014), Article ID 179723, 9 pages
http://dx.doi.org/10.1155/2014/179723
Research Article

Accumulative Roll Bonding of Pure Copper and IF Steel

1Mining and Metallurgical Engineering Department, Amirkabir University of Technology, Tehran 15875-4413, Iran
2Department of Mechanical Engineering, TEMA, University of Aveiro, 3810-193 Aveiro, Portugal
3Mining and Materials Engineering Department, McGill University, Montreal, QC, Canada H3A 0E8
4Departamento de Engenharia de Materiais e Ceramica, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal

Received 13 June 2014; Revised 20 August 2014; Accepted 24 August 2014; Published 23 September 2014

Academic Editor: Mohammad Reza Toroghinejad

Copyright © 2014 Saeed Tamimi 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

Severe plastic deformation is a new method to produce ultrafine grain materials with enhanced mechanical properties. The main objective of this work is to investigate whether accumulative roll bonding (ARB) is an effective grain refinement technique for two engineering materials of pure copper and interstitial free (IF) steel strips. Additionally, the influence of severely plastic deformation imposed by ARB on the mechanical properties of these materials with different crystallographic structure is taken into account. For this purpose, a number of ARB processes were performed at elevated temperature on the materials with 50% of plastic deformation in each rolling pass. Hardness of the samples was measured using microhardness tests. It was found that both the ultimate grain size achieved, and the degree of bonding depend on the number of rolling passes and the total plastic deformation. The rolling process was stopped in the 4th cycle for copper and the 10th cycle for IF steel, until cracking of the edges became pronounced. The effects of process temperature and wire-brushing as significant parameters in ARB process on the mechanical behaviour of the samples were evaluated.