Cyclic Deformation of Copper and Copper-Alumina Polycrystals

Povl Brøndsted, Jørgen Bilde-Sørensen, Ole Bøcker Pedersen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

    Abstract

    Preliminary results are described of a study of the combined effects of polycrystallinity and non-shearable Al//2O//3 particles on the fatigue of Cu at constant plastic strain amplitudes. The rapid hardening stage was found to be strongly affected both by polycrystallinity and by the particles. Electron microscopy shows that PSBs do not control the cyclic deformation of fine-grained Cu and Cu-Al//2O//3 at a tensile plastic strain amplitude of 10** minus **3. The dislocation microstructures in saturated Cu and Cu-Al//2O//3 are modified by the grain-boundaries, but they are only weakly affected by the particles.
    Original languageEnglish
    Title of host publicationProceedings of the 4. Risø International Symposium on Metallurgy and Materials Science
    Place of PublicationRoskilde
    PublisherDanmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi
    Publication date1983
    Pages179-188
    ISBN (Print)8755009468
    Publication statusPublished - 1983
    Event4th Risø International Symposium on Metallurgy and Materials Science - Risø, Denmark
    Duration: 5 Sep 19839 Sep 1983
    Conference number: 4

    Conference

    Conference4th Risø International Symposium on Metallurgy and Materials Science
    Number4
    CountryDenmark
    CityRisø
    Period05/09/198309/09/1983

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