Determining characteristic plastic-relaxation times using micro- and nanocrystalline nickel as an example

E. N. Borodin, N. S. Selyutina, Yu V. Petrov

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Based on the concept of the incubation time of plastic deformation, an integral yield criterion is introduced and time effects of irreversible deformation are considered. The efficiency of the approach is demonstrated using micro and nanocrystalline nickel as an example. The parameters of the phenomenological model are treated physically from the viewpoint of the behavior of the defect structure of the material, which is controlled by the dislocation sliding and grain-boundary slip mechanisms in a wide range of the rate of deformation.

    Original languageEnglish
    Pages (from-to)143-146
    Number of pages4
    JournalDoklady Physics
    Volume61
    Issue number3
    DOIs
    Publication statusPublished - 1 Mar 2016

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