Size effect on the tensile strength of fine-grained copper

Molotnikov, A., Lapovok, R., Davies, C. H. J., Cao, W. and Estrin, Y. 2008, Size effect on the tensile strength of fine-grained copper, Scripta materialia, vol. 59, no. 11, pp. 1182-1185, doi: 10.1016/j.scriptamat.2008.08.004.

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Title Size effect on the tensile strength of fine-grained copper
Author(s) Molotnikov, A.
Lapovok, R.ORCID iD for Lapovok, R. orcid.org/0000-0002-1395-9814
Davies, C. H. J.
Cao, W.
Estrin, Y.
Journal name Scripta materialia
Volume number 59
Issue number 11
Start page 1182
End page 1185
Total pages 4
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2008-12
ISSN 1359-6462
Keyword(s) constitutive equations
copper
stress-strain relationship measurements
thin films
image force
Summary We considered the effect of the thickness of copper sheet on its tensile strength. A model in which the strength of surface grains is governed by dislocation image forces, while that of interior grains is determined by dislocation cell structure, was proposed. Using a rule of mixtures, the dependence of strength on the specimen thickness was calculated. A master curve representing the calculated dependence of normalized strength on the ratio of sheet thickness to grain size was confirmed by experiment.
Language eng
DOI 10.1016/j.scriptamat.2008.08.004
Field of Research 091207 Metals and Alloy Materials
0912 Materials Engineering
0913 Mechanical Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2008, Acta Materialia
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075996

Document type: Journal Article
Collection: Institute for Frontier Materials
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