Factors influencing ductility in ultrafine-grained metals processed by equal-channel angular pressing


Figueiredo, Roberto B., Duan, Zhi Chao, Kawasaki, Megumi and Langdon, Terence G. (2010) Factors influencing ductility in ultrafine-grained metals processed by equal-channel angular pressing. Materials Science Forum, 633-634, 341-352. (doi:10.4028/www.scientific.net/MSF.633-634.341).

Download

Full text not available from this repository.

Description/Abstract

The processing of bulk metals through the application of severe plastic deformation provides an opportunity for achieving exceptional grain refinement to the submicrometer or even the nanometer range. This paper examines the characteristics of metals processed by equal-channel angular pressing with special emphasis on the levels of ductility that may be attained. It is shown that the amount of ductility is dependent not only upon the composition of the material but also, and to a major extent, upon the testing temperature. Specifically, the ductilities are often low at ambient temperatures where the strength of the as-processed material is relatively high but, by contrast, exceptionally high superplastic ductilities may be achieved over short ranges of strain rate when testing at elevated temperatures

Item Type: Article
ISSNs: 1662-9752 (print)
Related URLs:
Keywords: aluminum alloy, ductility, equal channel angular pressing (ECAP), magnesium alloy, superplasticity
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
ePrint ID: 72222
Date Deposited: 01 Feb 2010
Last Modified: 27 Mar 2014 18:51
URI: http://eprints.soton.ac.uk/id/eprint/72222

Actions (login required)

View Item View Item