On structural stability of nanostructured aluminium

Van Der Kolff, EJ; Berkahn, M; Wuhrer, R; Yeung, WY

On structural stability of nanostructured aluminium

Van Der Kolff, EJ Berkahn, M Wuhrer, R Yeung, WY

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Publication Type:: Journal Article
Citation:: Materials Science Forum, 2005, 475-479 (V), pp. 3501 - 3504
Issue Date:: 2005-04-25

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Field	Value	Language
dc.contributor.author	Van Der Kolff, EJ	en_US
dc.contributor.author	Berkahn, M	en_US
dc.contributor.author	Wuhrer, R	en_US
dc.contributor.author	Yeung, WY	en_US
dc.date.issued	2005-04-25	en_US
dc.identifier.citation	Materials Science Forum, 2005, 475-479 (V), pp. 3501 - 3504	en_US
dc.identifier.issn	0255-5476	en_US
dc.identifier.uri	http://hdl.handle.net/10453/3520
dc.description.abstract	Nano- and submicron-structured aluminium was produced by equal channel angular extrusion with a total strain of ∼17. Large residual stress and strain energy were built up in the extruded metal and subsequent heat treatments were applied to investigate the stability of the nanostructures. X-ray diffractometry and transmission electron microscopy were performed to evaluate the microstructural changes in the nanograin metal. It was found that the nanostructures remained stable at temperatures up to 250°C. Above 250°C, changes in the major x-ray peak reflections became evident, suggesting substantial grain growth had occurred. Electron microscopy confirmed that at low annealing temperatures, the fine grain structures were stable and indeed became more equiaxed and well defined. © 2005 Trans Tech Publications, Switzerland.	en_US
dc.relation.ispartof	Materials Science Forum	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.subject.classification	Materials	en_US
dc.title	On structural stability of nanostructured aluminium	en_US
dc.type	Journal Article
utslib.citation.volume	V	en_US
utslib.citation.volume	475-479	en_US
utslib.for	1007 Nanotechnology	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0912 Materials Engineering	en_US
dc.location.activity	Beijing, China	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	closed_access
pubs.issue	V	en_US
pubs.publication-status	Published	en_US
pubs.volume	475-479	en_US

Abstract:

Nano- and submicron-structured aluminium was produced by equal channel angular extrusion with a total strain of ∼17. Large residual stress and strain energy were built up in the extruded metal and subsequent heat treatments were applied to investigate the stability of the nanostructures. X-ray diffractometry and transmission electron microscopy were performed to evaluate the microstructural changes in the nanograin metal. It was found that the nanostructures remained stable at temperatures up to 250°C. Above 250°C, changes in the major x-ray peak reflections became evident, suggesting substantial grain growth had occurred. Electron microscopy confirmed that at low annealing temperatures, the fine grain structures were stable and indeed became more equiaxed and well defined. © 2005 Trans Tech Publications, Switzerland.

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http://hdl.handle.net/10453/3520