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Influence of surface roughening on indentation behavior of thin copper coatings using a molecular dynamics approach

Hansson, Per LU (2016) In Computational Materials Science 117. p.233-239
Abstract

The structure of interest consists of a nanometer thin copper coating, resting on an infinitely stiff substrate and subjected to nanoindentation by a rigid diamond indenter. The elastic and plastic properties of the coating are investigated for different surface roughening position of attack by the indenter using molecular dynamics. The force-displacement curves, the lattice disorders and the stresses are monitored during indentation to determine the onset of plasticity, plasticity development and stiffness in the different cases. It was found that both the surface roughening and point of attack of the indenter strongly affect the elastic and plastic behavior of the thin coating.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Molecular dynamics, Nanoindentation, Surface roughening, Thin coating
in
Computational Materials Science
volume
117
pages
7 pages
publisher
Elsevier
external identifiers
  • Scopus:84958780901
  • WOS:000373197900029
ISSN
0927-0256
DOI
10.1016/j.commatsci.2016.01.042
language
English
LU publication?
yes
id
8f68dd44-058a-4c8a-88a7-be0970a1e8a7
date added to LUP
2016-04-28 10:08:32
date last changed
2016-05-19 15:34:37
@misc{8f68dd44-058a-4c8a-88a7-be0970a1e8a7,
  abstract     = {<p>The structure of interest consists of a nanometer thin copper coating, resting on an infinitely stiff substrate and subjected to nanoindentation by a rigid diamond indenter. The elastic and plastic properties of the coating are investigated for different surface roughening position of attack by the indenter using molecular dynamics. The force-displacement curves, the lattice disorders and the stresses are monitored during indentation to determine the onset of plasticity, plasticity development and stiffness in the different cases. It was found that both the surface roughening and point of attack of the indenter strongly affect the elastic and plastic behavior of the thin coating.</p>},
  author       = {Hansson, Per},
  issn         = {0927-0256},
  keyword      = {Molecular dynamics,Nanoindentation,Surface roughening,Thin coating},
  language     = {eng},
  month        = {05},
  pages        = {233--239},
  publisher    = {ARRAY(0xa3a4180)},
  series       = {Computational Materials Science},
  title        = {Influence of surface roughening on indentation behavior of thin copper coatings using a molecular dynamics approach},
  url          = {http://dx.doi.org/10.1016/j.commatsci.2016.01.042},
  volume       = {117},
  year         = {2016},
}