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dc.contributor.author
Wheeler, Jeffrey M.
dc.contributor.author
Kirchlechner, Christoph
dc.contributor.author
Micha, Jean-Sébastien
dc.contributor.author
Michler, Johann
dc.contributor.author
Kiener, Daniel
dc.date.accessioned
2019-12-06T15:12:08Z
dc.date.available
2017-06-12T12:09:46Z
dc.date.available
2019-12-06T15:12:08Z
dc.date.issued
2016
dc.identifier.issn
1478-6443
dc.identifier.issn
1941-5869
dc.identifier.other
10.1080/14786435.2016.1224945
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/120185
dc.identifier.doi
10.3929/ethz-b-000120185
dc.description.abstract
As the length scale of sample dimensions is reduced to the micron and sub-micron scales, the strength of various materials has been observed to increase with decreasing size, a fact commonly referred to as the ‘sample size effect’. In this work, the influence of temperature on the sample size effect in copper is investigated using in situ microcompression testing at 25, 200 and 400 °C in the SEM on vacuum-annealed copper structures, and the resulting deformed structures were analysed using X-ray μLaue diffraction and scanning electron microscopy. For pillars with sizes between 0.4 and 4 μm, the size effect was measured to be constant with temperature, within the measurement precision, up to half of the melting point of copper. It is expected that the size effect will remain constant with temperature until diffusion-controlled dislocation motion becomes significant at higher temperatures and/or lower strain rates. Furthermore, the annealing treatment of the copper micropillars produced structures which yielded at stresses three times greater than their un-annealed, FIB-machined counterparts.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Taylor & Francis
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Size effect
en_US
dc.subject
Copper
en_US
dc.subject
high temperature deformation
en_US
dc.subject
µ-Laue diffraction
en_US
dc.title
The effect of size on the strength of FCC metals at elevated temperatures: Annealed copper
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2016-04-30
ethz.journal.title
Philosophical Magazine
ethz.journal.volume
96
en_US
ethz.journal.issue
32-34
en_US
ethz.journal.abbreviated
Philos. Mag.
ethz.pages.start
3379
en_US
ethz.pages.end
3395
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
004476158
ethz.publication.place
Abingdon
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02160 - Dep. Materialwissenschaft / Dep. of Materials::02645 - Institut für Metallforschung / Institute of Metals Research::03692 - Spolenak, Ralph / Spolenak, Ralph
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02160 - Dep. Materialwissenschaft / Dep. of Materials::02645 - Institut für Metallforschung / Institute of Metals Research::03692 - Spolenak, Ralph / Spolenak, Ralph
ethz.date.deposited
2017-06-12T12:16:17Z
ethz.source
ECIT
ethz.identifier.importid
imp593654afe227f28641
ethz.ecitpid
pub:182238
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-12T18:44:22Z
ethz.rosetta.lastUpdated
2019-12-06T15:12:21Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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