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Modeling the Effect of Texture on the Deformation Mechanisms of Nanocrystalline Materials at the Atomistic Scale

  • M. -J. Caturla
  • T. G. Nieh
Conference paper

Abstract

Molecular dynamics simulations show significant differences in the deformation behavior of nanocrystalline nickel with low and high angle grain boundaries. At a grain size of 12nm, low angle boundary sample show enhanced dislocation activity and reduced strength with respect to high angle boundary sample. However, at a smaller grain size of 4nm, low angle boundary sample shows a higher strength, revealing a change in deformation behavior. At this grain size, regardless the type of grain boundary, no dislocation activity negligible.

Key words

Texture nanocrystalline materials molecular simulation grain boundary yield strength 

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Copyright information

© Springer 2006

Authors and Affiliations

  • M. -J. Caturla
    • 1
  • T. G. Nieh
    • 2
  1. 1.Departament de Fisica Aplicada, Facultat de Ciencies. Fase IIUniversitat d’AlacantAlacantSpain
  2. 2.Department of Metrials Science and EngineeringThe University of TennesseeKnoxville

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