Developing ultrafine grain sizes using severe plastic deformation

Minoru Furukawa, Zenji Horita, Terence G. Langdon

    研究成果: Contribution to journalArticle査読

    43 被引用数 (Scopus)

    抄録

    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.

    本文言語英語
    ページ(範囲)121-125
    ページ数5
    ジャーナルAdvanced Engineering Materials
    3
    3
    DOI
    出版ステータス出版済み - 1 1 2001

    All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 凝縮系物理学

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