A self-consistent model for the inelastic deformation of nanocrystalline materials

L. Capolungo, M. Cherkaoui, J. Qu

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A self-consistent scheme is used to describe the behavior of nanocrystalline F.C.C. materials. The material is approximated as a composite with two phases. The inclusion phase represents the grain cores while the matrix phase represents both grain boundaries and triple junctions. The dislocation glide mechanism is incorporated in the constitutive law of the inclusion phase while a thermally activated mechanism accounting for the penetration of dislocations in the grain boundaries is incorporated in the constitutive law of the matrix phase. The model is applied to pure Cu and the results are compared with various experimental data.

Original languageEnglish
Pages (from-to)400-407
Number of pages8
JournalJournal of Engineering Materials and Technology
Volume127
Issue number4
DOIs
StatePublished - Oct 2005

Keywords

  • Composite materials
  • Hall-Petch
  • Homogenization
  • Nanocrystalline materials

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