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Optimization of strength and ductility in nanotwinned ultra-fine grained Ag: Twin density and grain orientations

TitleOptimization of strength and ductility in nanotwinned ultra-fine grained Ag: Twin density and grain orientations
Publication TypeJournal Article
Year of Publication2015
AuthorsOtt, RT, Geng, J, Besser, M, Kramer, MJ, Wang, YM, Park, ES, LeSar, R, King, AH
JournalActa Materialia
Volume96
Pagination378-389
Date Published09
Type of ArticleArticle
ISBN Number1359-6454
Accession NumberWOS:000358459900035
Keywordsag, behavior, breakdown, copper, ductility, hall-petch, maximum strength, mechanical-properties, metals, nanocrystalline materials, nanoscale growth twins, Nanostructured, Nanotwinned, severe plastic-deformation, synthesis, tensile, Ultra-fine grained
Abstract

along the growth direction. We have revealed that an uftrafine-grained (150-200 nm) structure consisting of a mixture of nanotwinned (similar to 8-12 nm spacing) and untwined grains yields the best combination of high strength and uniform tensile ductility. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

DOI10.1016/j.actamat.2015.06.030
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Nanotwins