Journal
SCRIPTA MATERIALIA
Volume 48, Issue 10, Pages 1451-1455Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S1359-6462(03)00082-4
Keywords
friction stir processing; aluminum alloys; transmission electron microscopy; recrystallization
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Evolution of the fine-grained structure in friction-stir processed aluminum has been studied using a rotating-tool plunge and extract technique. Initial sizes of newly recrystallized grains are on the order of 25-100 nm. These grains then grow to a size equivalent to that found in friction-stir processed aluminum, 2-5 mum, after heating 1-4 min at 350-450 degreesC. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
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