Microstructural control of an Al-Mg-Si alloy using equal-channel angular pressing

Keiichiro Oh-Ishi, Yukihiro Hashi, Akiko Sadakata, Kenji Kaneko, Zenji Horita, Terence G. Langdon

    研究成果: ジャーナルへの寄稿会議記事査読

    51 被引用数 (Scopus)

    抄録

    Severe plastic deformation using the process of equal-channel angular pressing (ECAP) was applied to an age-hardenable Al-Mg-Si alloy containing precipitate particles. Subsequent microstructual changes were examined using conventional transmission electron microscopy and energy-filtered transmission electron microscopy. It is shown that metastable rod-shaped β' particles are fragmented into round-shaped particles by the severe straining and there is a dissolution of the particles with an increase in the imposed strain. Further aging leads to the formation of cube-shaped particles in sample where the dissolution of particles occurs. It is also shown that the aging is significantly accelerated, and Si particles are formed, if it is undertaken using samples subjected to ECAP.

    本文言語英語
    ページ(範囲)333-338
    ページ数6
    ジャーナルMaterials Science Forum
    396-402
    1
    DOI
    出版ステータス出版済み - 1月 1 2002
    イベントAluminium Alloys 2002 Their Physical and Mechnaical Properties: Proceedings of the 8th International Conference ICAA8 - Cambridge, 英国
    継続期間: 7月 2 20027月 5 2002

    !!!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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