Strain-induced defects in solids at the different scale levels of plastic deformation and the nature of their sources

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Abstract

Studies on the mechanisms for deformation of solid surface layers are analyzed based on the notions of physical mesomechanics. It is concluded that peculiarities of a crystalline structure of the solid surface determine specific deformation mechanisms evolving in surface layers of a loaded material at micro-, meso-, and macrolevels. Incompatibility of surface-layer deformation with that of a crystalline sublayer is responsible for a wide range of quasi-periodic profiles of a variable oscillation period and for local zones of bend-torsion emerging at the surface. These zones appear as stress concentrators of different scale levels and generate all the types of stress-induced defects at the surface.

Original languageEnglish
Pages (from-to)197-200
Number of pages4
JournalMaterials Science and Engineering A
Volume319-321
DOIs
Publication statusPublished - 1 Dec 2001

Keywords

  • Hierarchy of scale levels
  • Physical mesomechanics
  • Plastic deformation
  • Strain-induced defects

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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