Journal
SCRIPTA MATERIALIA
Volume 66, Issue 11, Pages 837-842Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2011.12.046
Keywords
Twin boundary; Nanotwinned metals; Size effect; Work hardening
Categories
Funding
- National Science Foundation of China [50725103, 50890171, 51071153]
- National Basic Research Program of China (973 Program) [2012 CB932202]
- MOST International S&T Cooperation of China [2010DFB54010]
- Danish National Research Foundation
- National Natural Science Foundation of China [50911130230]
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Engineering twin boundaries at the nanometer scale is regarded as an effective approach to achieve high strength while maintaining a substantial work-hardening ability. In this paper, the effects of twin thickness, grain size as well as strain rate on the work-hardening behavior of polycrystalline pure Cu with nanoscale twins are analyzed. The contribution of four possible work-hardening components (Types I-TV) to the hardening and softening process of nanotwinned Cu is also discussed. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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