Developing ultrafine grain sizes using severe plastic deformation

Minoru Furukawa, Zenji Horita, Terence G. Langdon

    Research output: Contribution to journalArticlepeer-review

    43 Citations (Scopus)

    Abstract

    Severe plastic deformation may be used as a processing tool to achieve a refinement in grain size in metallic alloys to the submicrometer or nanometer range. This paper describes recent developments using the procedure of equal-channel angular pressing (ECAP) in which samples are pressed through a die containing a channel bent into an L-shaped configuration. The shearing associated with passage through the die introduces bands of subgrains which evolve, with additional pressings, into arrays of grains separated by boundaries having high angles of misorientation. The process of ECAP is a useful tool for both increasing the strength and toughness of an alloy at ambient temperatures and achieving a potential for superplastic forming of the alloy at rapid strain rates at elevated temperatures.

    Original languageEnglish
    Pages (from-to)121-125
    Number of pages5
    JournalAdvanced Engineering Materials
    Volume3
    Issue number3
    DOIs
    Publication statusPublished - Jan 1 2001

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics

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