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

Takahiro Masuda, Kazushige Fujimitsu, Yoichi Takizawa, Zenji Horita

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)319-325
    Number of pages7
    JournalKeikinzoku/Journal of Japan Institute of Light Metals
    Volume65
    Issue number8
    DOIs
    Publication statusPublished - 2015

    All Science Journal Classification (ASJC) codes

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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