On the feasibility of using a cntinuous processing technique incorporating a limited strain imposed by ECAP
Venkateswarlu, K., Ghosh, Mainak, Ray, A.K., Xu, Cheng and Langdon, Terence G. (2008) On the feasibility of using a cntinuous processing technique incorporating a limited strain imposed by ECAP. Materials Science and Engineering, 485, (1-2), 476-480. (doi:10.1016/j.msea.2007.08.007).
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Description/Abstract
Equal-channel angular pressing (ECAP) is used extensively in many laboratories for the production of metallic alloys having grain sizes in the submicrometer or nanometer range. However, the ECAP process is discontinuous and it is not easily adopted for use in commercial forming operations. Attempts have been made to overcome this limitation by incorporating a single ECAP step, equivalent to an imposed strain of 1, into continuous production runs based primarily on alternative industrial procedures such as rolling. Experiments on commercial-purity aluminum and a series of Al–Mg solid solution alloys show this is a feasible approach because very significant strengthening is introduced into bulk solids in the first pass, often leading to an increase in strength by a factor of about 2. However, these low strains are not sufficient to produce materials suitable for use in superplastic forming operations.
| Item Type: | Article |
|---|---|
| ISSNs: | 0921-5093 (print) |
| Related URLs: | |
| Keywords: | aluminum, equal-channel angular pressing, strength, ultrafine grains |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering |
| Item ID: | 64234 |
| Date Deposited: | 17 Dec 2008 |
| Last Modified: | 02 Mar 2012 12:13 |
| Contributors: | Venkateswarlu, K. (Author) Ghosh, Mainak (Author) Ray, A.K. (Author) Xu, Cheng (Author) Langdon, Terence G. (Author) |
| Date: | 25 June 2008 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/64234 |
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