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Evolution of plasticity, strain-rate sensitivity and the underlying deformation mechanism in Zn-22% Al during high-pressure torsion

Title
Evolution of plasticity, strain-rate sensitivity and the underlying deformation mechanism in Zn-22% Al during high-pressure torsion
Author
Megumi Kawasaki
Keywords
Zn-Al alloy; High-pressure torsion; Strain-rate sensitivity; Deformation mechanism; Nanoindentation
Issue Date
2014-03
Publisher
Elsevier Science B.V., Amsterdam.
Citation
Scripta materialia, Vol.75 No.- [2014], pp. 102-105
Abstract
This study explores the evolution of plasticity, strain-rate sensitivity and the underlying deformation mechanism of a Zn-22% Al eutectoid alloy during high-pressure torsion processing. The experiments reveal an optimal torsional straining condition for achieving the largest plasticity; beyond this condition the strain-rate sensitivity decreases and activation volume increases. The results are discussed in terms of changes in the microstructure and the underlying deformation mechanism. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S1359646213006027?via%3Dihubhttp://hdl.handle.net/20.500.11754/49361
ISSN
1359-6462
DOI
10.1016/j.scriptamat.2013.12.003
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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