Paper Title:

Superplasticity of Ultrafine-Grained Aluminum Alloy Processed by ECAP and Warm Rolling

Periodical Materials Science Forum (Volumes 551 - 552)
Main Theme Superplasticity in Advanced Materials - ICSAM 2006
Edited by K.F. Zhang
Pages 13-20
DOI 10.4028/www.scientific.net/MSF.551-552.13
Citation Rinat K. Islamgaliev et al., 2007, Materials Science Forum, 551-552, 13
Online since July 2007
Authors Rinat K. Islamgaliev, N.F. Yunusova, M.A. Bardinova, A.R. Kilmametov, Ruslan Valiev
Keywords Equal-Channel Angular Pressing (ECAP), Superplasticity, Ultra-Fine Grained Alloys
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The ultrafine-grained (UFG) 1421 aluminum alloy processed by equal channel angular pressing (ECAP) has demonstrated enhanced superplasticity at low temperature and high strain rates. This UFG material was successfully rolled at temperatures of 330-370oC retaining small grain size and equiaxed grain structure. The microstructure of the UFG alloy subjected to warm rolling (WR) was studied, and the mechanical properties of the ECAP+WR samples with UFG structures were investigated. We have found that the rolled material exhibited not only the enhanced superplasticity, but also high strength at room temperature.

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