Microstructures and mechanical properties of pure copper deformed severely by equal-channel angular pressing and high pressure torsion

N. Lugo, N. Llorca, J. M. Cabrera, Z. Horita

    研究成果: Contribution to journalArticle査読

    156 被引用数 (Scopus)

    抄録

    Pure Cu of 99.98 wt.% purity has been processed at room temperature by diverse techniques of severe plastic deformation, namely equal-channel angular pressing (ECAP), high pressure torsion (HPT) and a combination of both in order to find out the evolution on the microstructural homogeneity for each of the processes and their combination. Starting with a grain size of ∼60 μm, severe plastic deformation has been introduced to the material while maintaining the sample dimensions unchanged through the processes of ECAP and HPT. A significant decrease in grain size was observed by transmission electronic microscopy (TEM). Microtensile and microhardness tests were carried out on the deformed material in the three processing conditions. A significant improvement of the tensile strength was promoted with admissible penalization on ductility.

    本文言語英語
    ページ(範囲)366-371
    ページ数6
    ジャーナルMaterials Science and Engineering A
    477
    1-2
    DOI
    出版ステータス出版済み - 3 25 2008

    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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