Using extrusion and ECAP processing to achieve low temperature and high strain rate superplasticity

Kiyoshi Matsubara, Yuichi Miyahara, Koichi Makii, Zenji Horita, Terence G. Langdon

    研究成果: ジャーナルへの寄稿会議記事査読

    3 被引用数 (Scopus)

    抄録

    Grain refinement of a cast Mg-9% Al alloy was attempted using equal-channel angular pressing (ECAP). It is shown that the introduction of extrusion before ECAP is important in order to refine the grain size successfully through ECAP without breaking the sample: this combined process is designated EX-ECAP. Static annealing experiments were conducted to examine the thermal stability of the fine-grained structure produced by EX-ECAP. Tensile testing was conducted on the fine-grained alloy at elevated temperatures. It is shown that both low temperature superplasticity and high strain rate superplasticity are attained for the fine-grained sample.

    本文言語英語
    ページ(範囲)497-502
    ページ数6
    ジャーナルMaterials Science Forum
    419-422
    I
    DOI
    出版ステータス出版済み - 1月 1 2003
    イベントProceedings of the Second Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003 - Osaka, 日本
    継続期間: 1月 26 20031月 30 2003

    !!!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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