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Atomic-scale investigation of interface-facilitated deformation twinning in severely deformed Ag-Cu nanolamellar composites

Title
Atomic-scale investigation of interface-facilitated deformation twinning in severely deformed Ag-Cu nanolamellar composites
Author
Kawasaki, Megumi
Keywords
HIGH-PRESSURE TORSION; CENTERED-CUBIC METALS; NANOLAYERED COMPOSITES; NANOCRYSTALLINE CU; GROWTH TWINS; MECHANISMS; SLIP; EVOLUTION; ALLOYS
Issue Date
2015-07
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v. 107, NO 1, Page. 011901-11905
Abstract
We report an atomic-scale investigation of interface-facilitated deformation twinning behaviour in Ag-Cu nanolamellar composites. Profuse twinning activities in Ag supply partial dislocations to directly transmit across the Ag-Cu lamellar interface that promotes deformation twinning in the neighbouring Cu lamellae although the interface is severely deformed. The trans-interface twin bands change the local structure at the interface. Our analysis suggests that the orientation relationship and interfacial structure between neighbouring Ag-Cu lamellae play a crucial role in such special interface-facilitated twinning behaviour. (C) 2015 AIP Publishing LLC.
URI
http://aip.scitation.org/doi/abs/10.1063/1.4926370http://hdl.handle.net/20.500.11754/26418
ISSN
0003-6951; 1077-3118
DOI
10.1063/1.4926370
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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