Journal
SCRIPTA MATERIALIA
Volume 66, Issue 10, Pages 785-788Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2012.02.008
Keywords
Titanium; Equal channel angular pressing (ECAP); Recycling; Hall-Petch relationship
Categories
Funding
- Defence Materials Technology Centre (DMTC)
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Equal channel angular pressing was used to consolidate commercially pure titanium chips into fully dense bulk material with high strength (up to 650 MPa), due to an ultrafine grain size as low as 0.8 mu m, and good ductility (similar to 6%). Electron backscattered diffraction was employed to reveal low-angle grain boundaries (LAGBs), enabling a modified Hall-Petch relationship to be analyzed in consideration of strengthening contributions from LAGBs in particular, but also interstitial solutes, high-angle grain boundaries and potential oxide dispersion. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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