Paper Title:
Atomistic Simulations of Dislocation-Loop Glidings in Al(111) Nanoindentation
  Abstract

Molecular dynamics simulation of nanoindentation on Al(111) surface is presented. The simulation is performed using the Ercolessi-Adams glue potential and the Berendsen thermostat. Boundary conditions of 'pseudo' thin film are imposed in order to focus on the dislocation motion in ultra-thin film. Nucleation and development of defects underneath the indenter tip are visualized, and the gliding patterns of dislocation loops are investigated with particular emphasis on the effect of film thickness. Simulation results show that the early emission of dislocation loop is highly dependent on the film thickness.

  Info
Periodical
Key Engineering Materials (Volumes 261-263)
Edited by
Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka
Pages
735-740
DOI
10.4028/www.scientific.net/KEM.261-263.735
Citation
S. Jun, Y. M. Lee, S. Y. Kim, S. Y. Im, "Atomistic Simulations of Dislocation-Loop Glidings in Al(111) Nanoindentation", Key Engineering Materials, Vols. 261-263, pp. 735-740, 2004
Online since
April 2004
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Chun Ma, Ji Hui Yin
Abstract:The thermal effect has pronounced influence on deformation behavior of materials at nanoscale due to small length scale. In current paper,...
155
Authors: Shinji Muraishi, Masaaki Takaya
Chapter 23: Thin Films & Interface Engineering
Abstract:The size dependent hardening in Al-4wt%Cu thin film on Si substrate has been investigated by the numerical calculation of indentation stress...
2892
Authors: Yu Fei Shao, Xin Yang, Jiu Hui Li, Xing Zhao
Symposium T: Materials Modeling and Simulation
Abstract:Dislocation core structures in Au and Cu crystals are investigated by means of quasicontinuum simulations combined with the embedded atom...
712