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.
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
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

Document type: Journal Article
Collections: Institute for Frontier Materials
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