Journal
SCRIPTA MATERIALIA
Volume 68, Issue 7, Pages 475-478Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2012.11.025
Keywords
Deformation twinning; Dynamic plastic deformation; Hexagonal close-packed; Ti; SEM-TKD
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Funding
- Australian Microscopy & Microanalysis Research Facility node at the University of Sydney
- MOST of China [2012CB932203]
- NSFC [51171080]
- Australian Research Council [DP120100510]
- China Scholarship Council
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The scanning electron microscopy transmission Kikuchi diffraction technique was used to characterize the microstructure of ultrafine-grained Ti processed by dynamic plastic deformation at room temperature. Contrary to the general conception that twinning plays little role in the plastic deformation of ultrafine-grained hexagonal close-packed Ti, nanocrystalline {11 (2) over bar2} and {10 (1) over bar2} deformation twins were widely observed in the material. The observation provides insight into the deformation mechanisms and mechanical behaviour of nanostructured metals with hexagonal close-packed structures. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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