Microstructure and mechanical properties of ultra-fine grained copper processed by equal channel angular pressing technique

Kazeem O. Sanusi, Ayo S. Afolabi, Edison Muzenda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The equal channel angular pressing (ECAP) technique is now recognised for achieving very significant grain refinement of ultra-fine grained materials which, at present produce unique mechanical properties. This study reports the results of the tensile tests and the microstructural analysis carried out on the specimens of ultra-fine grained (UFG) copper processed by ECAP technique at room temperature using a die with a 126° between the die channels. The copper samples used in this work were subjected to six and twelve passes during the ECAP processing. Tensile tests were conducted for samples cut out in two different directions; in the parallel and perpendicular direction at room temperature to evaluate the mechanical properties after the ECAP at these two directions. The microstructural characterization was carried out using optical electron microscope (OEM) and scanning electronic microscope (SEM). The results show ECAP technique introducing significant grain refinement and produced ultrafine grains in copper and there is a potential for achieving high ductility in the copper alloy after processing. The tested sample is characterized by significant differences of strength properties depending on the direction.

Original languageEnglish
Title of host publicationWorld Congress on Engineering, WCE 2014
EditorsCraig Douglas, S. I. Ao, S. I. Ao, Warren S. Grundfest, Jon Burgstone, Craig Douglas, Jon Burgstone, S. I. Ao
PublisherNewswood Limited
Pages1049-1053
Number of pages5
Volume2
ISBN (Electronic)9789881925374
ISBN (Print)9789881925350
Publication statusPublished - Jan 1 2014
EventWorld Congress on Engineering and Computer Science 2014, WCECS 2014 - San Francisco, United States
Duration: Oct 22 2014Oct 24 2014

Other

OtherWorld Congress on Engineering and Computer Science 2014, WCECS 2014
CountryUnited States
CitySan Francisco
Period10/22/1410/24/14

All Science Journal Classification (ASJC) codes

  • Computer Science (miscellaneous)

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  • Cite this

    Sanusi, K. O., Afolabi, A. S., & Muzenda, E. (2014). Microstructure and mechanical properties of ultra-fine grained copper processed by equal channel angular pressing technique. In C. Douglas, S. I. Ao, S. I. Ao, W. S. Grundfest, J. Burgstone, C. Douglas, J. Burgstone, & S. I. Ao (Eds.), World Congress on Engineering, WCE 2014 (Vol. 2, pp. 1049-1053). Newswood Limited.