Size effects on tensile and fatigue behaviour of polycrystalline metal foils at the micrometer scale
Dai, C.Y., Zhang, G.P., & Yan, C. (2011) Size effects on tensile and fatigue behaviour of polycrystalline metal foils at the micrometer scale. Philosophical Magazine, 91(6), pp. 932-945.
Tensile and fatigue properties of as-rolled and annealed polycrystalline Cu foils with different thicknesses at the micrometer scale were investigated. Uniaxial tensile testing results showed that with decreasing foil thickness the uniform elongation decreases for both as-rolled and annealed foils, whereas the yield strength and ultimate tensile strength increase for as-rolled foils, but decrease for the annealed foils. For both the as-rolled or annealed foils, bending fatigue resistance decreases with decreasing the foil thickness. Deformation and fatigue damage behaviour of the free-standing foils were characterised as a function of foil thickness. In addition, the fatigue strength of various small-scale Cu foils was compared to understand they physical mechanisms of size effects on mechanical properties of the metallic material at micrometer scales.
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|Item Type:||Journal Article|
|Keywords:||Copper Foil, Tensile Test, Fatigue, Size Effect, Micrometer Scale|
|Subjects:||Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > MATHEMATICAL PHYSICS (010500)|
Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > CONDENSED MATTER PHYSICS (020400)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2011 Taylor & Francis|
|Copyright Statement:||This is an electronic version of an article published in [Philosophical Magazine, 91(6), pp.932-945]. [Philosophical Magazine] is available online at informaworld.|
|Deposited On:||15 Sep 2011 10:03|
|Last Modified:||02 Mar 2012 01:30|
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