Developing a model for grain refinement in equal-channel angular pressing

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

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

    7 Citations (Scopus)

    Abstract

    It is now recognized that processing by equal-channel angular pressing (ECAP) leads to very significant grain refinement in polycrystalline materials with the as-pressed grains typically having sizes within the submicrometer range. Furthermore, the materials produced by ECAP exhibit many useful properties including a high strength at ambient temperatures and, if these ultrafine grains are retained to elevated temperatures, a potential for superplastic forming. This paper examines the fundamental characteristics of grain refinement by making use of two sets of experimental observations: experimental data obtained from the pressing of aluminum single crystals through one pass of ECAP and hardness measurements taken on polycrystalline aluminum for samples subjected to ECAP for up to a total of eight passes. These experimental results are used to develop a microstructural model that provides a satisfactory explanation for the grain refinement occurring in ECAP.

    Original languageEnglish
    Title of host publicationNanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation
    Pages19-24
    Number of pages6
    Publication statusPublished - Dec 1 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

    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

    Fingerprint

    Dive into the research topics of 'Developing a model for grain refinement in equal-channel angular pressing'. Together they form a unique fingerprint.

    Cite this