Using Torsion to produce severe strain and ultrafine grains

Zenji Horita, Terence G. Langdon

    研究成果: 書籍/レポート タイプへの寄稿会議への寄与


    It is now well established that severe plastic deformation (SPD) leads to a very significant reduction in the grain size of many metallic materials. Processing by SPD may be achieved through torsional straining by rotating a disk around its center or by rotating a cylindrical rod about its longitudinal axis. High-Pressure Torsion (HPT) is a typical torsional straining procedure which may be used to produce an array of ultrafine grains having average sizes lying in the submicrometer or the nanometer range. Generally, the HPT process is applied to disk samples but very recent studies have demonstrated that HPT is applicable also to bulk samples. The principle of torsional straining was also recently developed as a Severe Torsion Straining Process (STSP) in which a rod is moved in a longitudinal direction while torsional strain is introduced through rotation. This report describes both the principles and some typical results attained using these various torsional straining procedures.

    ホスト出版物のタイトルUltrafine Grained Materials IV
    出版ステータス出版済み - 2006
    イベント2006 TMS Annual Meeting - San Antonio, TX, 米国
    継続期間: 3月 12 20063月 16 2006


    名前TMS Annual Meeting


    その他2006 TMS Annual Meeting
    CitySan Antonio, TX

    !!!All Science Journal Classification (ASJC) codes

    • 凝縮系物理学
    • 材料力学
    • 金属および合金


    「Using Torsion to produce severe strain and ultrafine grains」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。