Free surface effects on rotational deformation mediated by grain boundary dislocations in nanocrystalline materials are theoretically described. The critical stresses and characteristic geometric parameters for the rotational deformation occurring in nanocrystalline materials near their free surfaces are calculated and compared with those specifying the rotational deformation in bulk regions. The role of the free surface effects in the interpretation of electron microscopy data for plastically deformed nanocrystalline materials is discussed.

Original languageEnglish
Pages (from-to)6444-6451
Number of pages8
JournalJournal of Materials Science
Volume51
Issue number13
DOIs
StatePublished - 1 Jul 2016

    Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

ID: 10850086