Evolution of microstructure and precipitation in heat-treatable aluminium alloys during ECA pressing and subsequent heat treatment

Nong Gao, Marco J. Starink, Minoru Furukawa, Zenji Horita, Cheng Xu, Terence G. Langdon

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

    30 Citations (Scopus)

    Abstract

    The precipitation and evolution of microstructure in a spray-cast Al-7034 alloy and a commercial wrought Al-2024 alloy were studied after equal-channel angular pressing (ECAP) using transmission electron microscopy and differential scanning calorimetry (DSC). Microstructural examination showed the grain sizes of both alloys were reduced to the range of-0.3-0.5 μm through ECAP. The DSC analysis identified the occurrence of thermal effects involving the formation, coarsening, dissolution and melting of the precipitate phases and concurrent recrystallization. The heating and ageing response of the alloys processed by ECAP was identified by micro-hardness testing of the samples after interrupted heating and ageing treatments.

    Original languageEnglish
    Title of host publicationNanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation
    PublisherTrans Tech Publications Ltd
    Pages275-280
    Number of pages6
    ISBN (Print)0878499857, 9780878499854
    DOIs
    Publication statusPublished - 2006
    Event3rd International Conference on Nanomaterials by Severe Plastics Deformation, NanoSPD3 - Fukuoka, Japan
    Duration: Sep 22 2005Sep 26 2005

    Publication series

    NameMaterials Science Forum
    Volume503-504
    ISSN (Print)0255-5476
    ISSN (Electronic)1662-9752

    Other

    Other3rd International Conference on Nanomaterials by Severe Plastics Deformation, NanoSPD3
    Country/TerritoryJapan
    CityFukuoka
    Period9/22/059/26/05

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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