Effect of HPT on age-hardening behavior in Cu-added excess Mg-type Al-Mg-Si alloys

S. Maruno, S. Saikawa, S. Hirosawa, T. Hamaoka, Z. Horita, S. Lee, D. Terada, K. Matsuda

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Severe plastic deformation (SPD) techniques such as high pressure torsion (HPT) have been extensively researched to achieve. SPD process makes use of the plastic deformation where no change in the cross-sectional dimension of a work piece occurs during straining.In this work, the effect of HPT on aging behavior and microstructure in excess Mg-type Al-Mg-Si alloys including Cu. These alloys were investigated by hardness test and TEM observation. The results show that processing by HPT leads to significant grain refinement with a grain size of ~250nm. Age-hardening phenomenon is observed at 343K and 373K for the Al-Mg-Si alloys with HPT. A few density of dislocation in the crystal grain was observed. The typical needle-shaped precipitates of Al-Mg-Si alloys were not observed in the matrix.

    Original languageEnglish
    Title of host publicationTHERMEC 2013 Supplement
    PublisherTrans Tech Publications Ltd
    Pages487-490
    Number of pages4
    ISBN (Print)9783038350743
    DOIs
    Publication statusPublished - 2014
    Event8th International Conference on Processing and Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, THERMEC 2013 - Las Vegas, NV, United States
    Duration: Dec 2 2013Dec 6 2013

    Publication series

    NameAdvanced Materials Research
    Volume922
    ISSN (Print)1022-6680

    Other

    Other8th International Conference on Processing and Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, THERMEC 2013
    Country/TerritoryUnited States
    CityLas Vegas, NV
    Period12/2/1312/6/13

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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