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Influence of the crystallographic orientation and thickness of thin copper coatings during nanoindentation

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Author

Summary, in English

The structure of interest consists of a nanometer thin copper coating, resting on a stiffer substrate. The elastic and plastic properties of the coating are investigated for three crystallographic orientations and two coating thicknesses using nanoindentation simulated by molecular dynamics. The force-displacement curve, the atomic rearrangement, the stresses and the lattice disorder are monitored during indentation to determine and describe the occurrence and formation of pop-ins and pop-outs during loading. It was found that the crystallographic orientation strongly influenced both the stiffness, load for pop-in formation, the resulting deformation and the stress beneath the indenter. (C) 2015 Elsevier Ltd. All rights reserved.

Department/s

Publishing year

2015

Language

English

Pages

143-152

Publication/Series

Engineering Fracture Mechanics

Volume

150

Document type

Journal article

Publisher

Elsevier

Topic

  • Applied Mechanics

Keywords

  • Nanoindentation
  • Molecular dynamics
  • Thin coating

Status

Published

ISBN/ISSN/Other

  • ISSN: 1873-7315