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

    Research output: Contribution to journalConference articlepeer-review

    13 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)171-178
    Number of pages8
    JournalMaterials Science Forum
    Volume604-605
    DOIs
    Publication statusPublished - Apr 17 2009
    EventInternational Conference Recent Developments in the Processing and Applications of Structural Metals and Alloys - Ancona, Italy
    Duration: Jun 22 2008Jun 25 2008

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

    Fingerprint

    Dive into the research topics of 'Plastic flow and grain refinement under simple shear-based severe plastic deformation processing'. Together they form a unique fingerprint.

    Cite this