Journal
SCRIPTA MATERIALIA
Volume 49, Issue 7, Pages 663-668Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S1359-6462(03)00396-8
Keywords
nanocrystalline materials; ultratine-grained microstructure; ductility; plastic deformation; copper
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High-strength nanocrystalline (nc) and ultrafine-grained (ufg) metals often show much reduced room-temperature tensile ductility compared with their coarse-grained counterparts. We discuss the various plastic and/or failure instabilities the nc and ufg metals are susceptible to, and present strategies to enhance the ductility, especially in terms of improving the uniform tensile strain. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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