Effect of microstructures on tensile properties of AZ31 Mg alloy processed by ECAP

Yuichi Miyahara, Kazuhiko Adachi, Yasuhiro Maehara, Zenji Horita, Terence G. Langdon

    研究成果: Chapter in Book/Report/Conference proceedingConference contribution

    抄録

    A commercial AZ31 Mg alloy was subjected to ECAP (equal-channel angular pressing) and the tensile properties were examined at room temperature. It is shown that the microstructure before ECAP significantly affects the performance of ECAP without breaking samples. When the initial structure before ECAP is homogeneous with equiaxed grains, subsequent ECAP is feasible at lower temperatures. The grain refinement is achieved more effectively as the temperature for ECAP is lowered and the number of ECAP pass is increased. The tensile ductility was reduced after 1 pass of ECAP at 473 K or 498 K. However, the ductility was improved with an increasing number of ECAP pass or by annealing at 473 K or 523 K after ECAP. The results demonstrate that a homogeneous distribution of fine equiaxed grains is important for ductility improvement in the AZ31 Mg alloy.

    本文言語英語
    ホスト出版物のタイトルMagnesium - Science, Technology and Applications, Mg - Proceedings of the International Conference on Magnesium - Science, Technology and Applications
    出版社Trans Tech Publications Ltd
    ページ473-476
    ページ数4
    ISBN(印刷版)0878499687, 9780878499687
    DOI
    出版ステータス出版済み - 1 1 2005
    イベントInternational Conference on Magnesium - Science, Technology and Applications - Beijing, 中国
    継続期間: 9 20 20049 24 2004

    出版物シリーズ

    名前Materials Science Forum
    488-489
    ISSN(印刷版)0255-5476
    ISSN(電子版)1662-9752

    その他

    その他International Conference on Magnesium - Science, Technology and Applications
    国/地域中国
    CityBeijing
    Period9/20/049/24/04

    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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