Effect of grain size distribution on the local mechanical behavior of nanocrystalline materials

Yingguang Liu, Jianqiu Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A theoretical model based on self-consistent approximation is proposed to explore the effect of grain size distribution on the local mechanical response of nanocrystalline (nc) materials. The representative volume element (RVE) is composed of grains randomly distributed with a grain size distribution following a log-normal statistical function. The grain interior and grain boundary are taken as an integral object to sustain deformation mechanisms of grain-boundary sliding, grain-boundary diffusion and grain-interior plasticity. Local plastic strains and internal stresses, developing within the RVE, have been recorded and discussed.

Original languageEnglish
Title of host publicationNanomaterials and Plastic Deformation
PublisherTrans Tech Publications Ltd
Pages153-158
Number of pages6
ISBN (Print)9783037850893
DOIs
StatePublished - 2011
Externally publishedYes

Publication series

NameMaterials Science Forum
Volume682
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Keywords

  • Grain size distribution
  • Nanocrystalline materials
  • Self-consistent

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