Strength and Plastic Deformation Behavior of Nano-Scale Au/Cu and Cr/Cu Multilayers

Y.P. Li; G.P. Zhang; Z.G. Wang

doi:10.4028/www.scientific.net/AMR.41-42.3

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Preface

Strength and Plastic Deformation Behavior of Nano-Scale Au/Cu and Cr/Cu Multilayers
p.3

Study of Altered Mechanical Properties of Articular Cartilage in Relation to the Collagen Network
p.9

Deformation of Monocrystalline Silicon under Nanoscratching
p.15

The Effects of Cyclic Loading on Fracture Modes in Brittle Layer Structures: Relevance to Failure of Dental Crowns
p.21

Statistical Analysis of the Tensile Strength of Carbon Nanotubes
p.27

Indenter/Coating Modulus Mismatches and Load Location Effects on Contact Damage in Curved Brittle-Based Bi-Layer Structures
p.33

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Strength and Plastic Deformation Behavior of Nano-Scale Au/Cu and Cr/Cu Multilayers

Abstract:

Nano-scale Au/Cu multilayers were investigated by nano/microindentation. It was found that the hardness of the multilayers increases with decreasing individual layer thickness (λ), and shear band deformation can occur more easily in the multilayer with small λ. For comparison, the same experiments were also performed on Cr/Cu multilayers with the same layer structure. The results show that the Cr/Cu multilayer can be more effective in resisting shear band deformation than the Au/Cu multilayer. Finally, the λ dependence of shear band deformation and the difference between plastic deformation behaviors of the two multilayers were analyzed based on dislocation plasticity.