Details

Autor(en) / Beteiligte

• Molotnikov, A.
• Lapovok, R.
• Davies, C.H.J.
• Cao, W.
• Estrin, Y.

Titel

Size effect on the tensile strength of fine-grained copper

Ist Teil von

• Scripta materialia, 2008-12, Vol.59 (11), p.1182-1185

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2008

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.