Achieving superplasticity through grain refinement of A2024 alloy round bar using high-pressure sliding

Takahiro Masuda, Kazushige Fujimitsu, Yoichi Takizawa, Zenji Horita

    研究成果: Contribution to journalArticle査読

    7 被引用数 (Scopus)

    抄録

    In this study, the method of high-pressure sliding (HPS) was applied for grain refinement of an A2024 alloy. Samples in a rod shape were used in this HPS process. To achieve homogeneous grain refinement throughout the cross section of the rods, the samples were rotated around the longitudinal axis of the rod every after HPS processing. Microstructural observations revealed that the grain size was refined to 140 nm. Tensile tests showed that the samples exhibited superplasticity with a maximum elongation of 480% at 623 K and 1.0×10-3 s-1 and with a strain rate sensitivity of 0.36.

    本文言語英語
    ページ(範囲)319-325
    ページ数7
    ジャーナルKeikinzoku/Journal of Japan Institute of Light Metals
    65
    8
    DOI
    出版ステータス出版済み - 2015

    All Science Journal Classification (ASJC) codes

    • 材料力学
    • 機械工学
    • 金属および合金
    • 材料化学

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