Plastic flow and grain refinement under simple shear-based severe plastic deformation processing

D. Orlov, Y. Todaka, M. Umemoto, Y. Beygelzimer, Zenji Horita, N. Tsuji

    研究成果: Contribution to journalConference article査読

    13 被引用数 (Scopus)

    抄録

    In the present work, effects of loading scheme and strain reversal on structure evolution are studied by using high pressure torsion (HPT) and twist extrusion (TE) techniques. High purity aluminum (99.99%) was processed at room temperature up to a total average equivalent strain of ∼4.8 by TE and HPT with two deformation modes: monotonic and reversal deformation with a step of 12° rotation. It was revealed that microstructural change with straining observed in pure Al was a common consequence of the SPD processing and was not affected significantly by the loading scheme. At the same time, it was found that strain reversal retarded grain refinement in comparison with monotonic deformation.

    本文言語英語
    ページ(範囲)171-178
    ページ数8
    ジャーナルMaterials Science Forum
    604-605
    DOI
    出版ステータス出版済み - 4 17 2009
    イベントInternational Conference Recent Developments in the Processing and Applications of Structural Metals and Alloys - Ancona, イタリア
    継続期間: 6 22 20086 25 2008

    All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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