Experimental evidence for grain-boundary sliding in ultrafine-grained aluminum processed by severe plastic deformation

Nguyen Q. Chinh, Péter Szommer, Zenji Horita, Terence G. Langdon

    Research output: Contribution to journalReview articlepeer-review

    164 Citations (Scopus)

    Abstract

    Grain-boundary sliding in ultrafine-grained aluminum to examine material processing by severe plastic deformation (SPD), was described. It was proposed that sliding occurred in these materials by the movement of extrinsic dislocations along the boundary. The observations suggested that new deformation processes become important not only in materials having grain-sizes but also in materials having sub-micrometer grain sizes. The results show that grain-boundary sliding is a viable deformation process in ultrafine-grained metals processed by SPDoccurrenceoccurence of sliding provides an explanation for the reasonable ductility.

    Original languageEnglish
    Pages (from-to)34-39
    Number of pages6
    JournalAdvanced Materials
    Volume18
    Issue number1
    DOIs
    Publication statusPublished - Jan 5 2006

    All Science Journal Classification (ASJC) codes

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

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