Contact and barrier dislocation resistance and their effect on characteristics of slip and work hardening

E. V. Kozlov, N. A. Koneva, L. A. Teplyakova, D. V. Lychagin, L. I. Trishkina

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    The basic mechanisms of substructure hardening of network and cell dislocation structures were considered in terms of the quantitative data of the TEM investigation of foils and replicas. The comparative analysis of the barrier and contact dislocation resistance was carried out. These types of the dislocation resistance make the main contribution to the work hardening. Sharp distinction of the dislocation ensembles properties where the work hardening is determined by the relations t ~ p1/2 and t ~ D-1 was shown. The attention was paid on presence of the softening fluctuation contribution into the flow stress, which is increased with the increase of inhomogeneity of the dislocation distribution.

    Original languageEnglish
    Pages (from-to)261-265
    Number of pages5
    JournalMaterials Science and Engineering A
    Volume319-321
    DOIs
    Publication statusPublished - Dec 2001

    Fingerprint

    work hardening
    Strain hardening
    hardening
    slip
    Plastic flow
    Metal foil
    Hardening
    Transmission electron microscopy
    substructures
    replicas
    softening
    foils
    inhomogeneity
    transmission electron microscopy
    cells

    Keywords

    • Dislocations cells
    • Dislocations networks
    • Slip
    • Substructure hardening

    ASJC Scopus subject areas

    • Materials Science(all)

    Cite this

    Contact and barrier dislocation resistance and their effect on characteristics of slip and work hardening. / Kozlov, E. V.; Koneva, N. A.; Teplyakova, L. A.; Lychagin, D. V.; Trishkina, L. I.

    In: Materials Science and Engineering A, Vol. 319-321, 12.2001, p. 261-265.

    Research output: Contribution to journalArticle

    Kozlov, E. V. ; Koneva, N. A. ; Teplyakova, L. A. ; Lychagin, D. V. ; Trishkina, L. I. / Contact and barrier dislocation resistance and their effect on characteristics of slip and work hardening. In: Materials Science and Engineering A. 2001 ; Vol. 319-321. pp. 261-265.
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