Principles of grain refinement in processing by ECAP

Cheng Xu, Minoru Furukawa, Zenji Horita, Terence G. Langdon

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

    1 Citation (Scopus)


    Equal-channel angular pressing (ECAP) may be used to achieve very significant grain refinement in bulk materials. Typically, the materials processed by ECAP have ultrafine grain sizes within the submicrometer range. This paper examines the development of the as-pressed microstructural characteristics during the pressing of pure aluminum single crystals and polycrystalline aluminum. Experimental results show that a homogeneous ultrafine-grained microstructure evolves with increasing numbers of passes through the ECAP die. These experimental observations are used to develop a model that provides a satisfactory explanation for grain refinement during processing by ECAP.

    Original languageEnglish
    Title of host publicationUltrafine Grained Materials IV
    Number of pages6
    Publication statusPublished - 2006
    Event2006 TMS Annual Meeting - San Antonio, TX, United States
    Duration: Mar 12 2006Mar 16 2006

    Publication series

    NameTMS Annual Meeting


    Other2006 TMS Annual Meeting
    Country/TerritoryUnited States
    CitySan Antonio, TX

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys


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