Formation and subdivision of deformation structures during plastic deformation

B. Jakobsen, H.F. Poulsen, U. Lienert, J. Almer, S.D. Shastri, H.O. Sørensen, C. Gundlach, W. Pantleon

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    During plastic deformation of metals and alloys, dislocations arrange in ordered patterns. How and when these self-organization processes take place have remained elusive, because in situ observations have not been feasible. We present an x-ray diffraction method that provided data on the dynamics of individual, deeply embedded dislocation structures. During tensile deformation of pure copper, dislocation-free regions were identified. They showed an unexpected intermittent dynamics, for example, appearing and disappearing with proceeding deformation and even displaying transient splitting behavior. Insight into these processes is relevant for an understanding of the strength and work-hardening of deformed materials.
    Original languageEnglish
    JournalScience
    Volume312
    Issue number5775
    Pages (from-to)889-892
    ISSN0036-8075
    DOIs
    Publication statusPublished - 2006

    Cite this

    Jakobsen, B. ; Poulsen, H.F. ; Lienert, U. ; Almer, J. ; Shastri, S.D. ; Sørensen, H.O. ; Gundlach, C. ; Pantleon, W. / Formation and subdivision of deformation structures during plastic deformation. In: Science. 2006 ; Vol. 312, No. 5775. pp. 889-892.
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    title = "Formation and subdivision of deformation structures during plastic deformation",
    abstract = "During plastic deformation of metals and alloys, dislocations arrange in ordered patterns. How and when these self-organization processes take place have remained elusive, because in situ observations have not been feasible. We present an x-ray diffraction method that provided data on the dynamics of individual, deeply embedded dislocation structures. During tensile deformation of pure copper, dislocation-free regions were identified. They showed an unexpected intermittent dynamics, for example, appearing and disappearing with proceeding deformation and even displaying transient splitting behavior. Insight into these processes is relevant for an understanding of the strength and work-hardening of deformed materials.",
    keywords = "Nanobioteknologi og medikomaterialer",
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    year = "2006",
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    language = "English",
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    Formation and subdivision of deformation structures during plastic deformation. / Jakobsen, B.; Poulsen, H.F.; Lienert, U.; Almer, J.; Shastri, S.D.; Sørensen, H.O.; Gundlach, C.; Pantleon, W.

    In: Science, Vol. 312, No. 5775, 2006, p. 889-892.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - Formation and subdivision of deformation structures during plastic deformation

    AU - Jakobsen, B.

    AU - Poulsen, H.F.

    AU - Lienert, U.

    AU - Almer, J.

    AU - Shastri, S.D.

    AU - Sørensen, H.O.

    AU - Gundlach, C.

    AU - Pantleon, W.

    PY - 2006

    Y1 - 2006

    N2 - During plastic deformation of metals and alloys, dislocations arrange in ordered patterns. How and when these self-organization processes take place have remained elusive, because in situ observations have not been feasible. We present an x-ray diffraction method that provided data on the dynamics of individual, deeply embedded dislocation structures. During tensile deformation of pure copper, dislocation-free regions were identified. They showed an unexpected intermittent dynamics, for example, appearing and disappearing with proceeding deformation and even displaying transient splitting behavior. Insight into these processes is relevant for an understanding of the strength and work-hardening of deformed materials.

    AB - During plastic deformation of metals and alloys, dislocations arrange in ordered patterns. How and when these self-organization processes take place have remained elusive, because in situ observations have not been feasible. We present an x-ray diffraction method that provided data on the dynamics of individual, deeply embedded dislocation structures. During tensile deformation of pure copper, dislocation-free regions were identified. They showed an unexpected intermittent dynamics, for example, appearing and disappearing with proceeding deformation and even displaying transient splitting behavior. Insight into these processes is relevant for an understanding of the strength and work-hardening of deformed materials.

    KW - Nanobioteknologi og medikomaterialer

    U2 - 10.1126/science.1124141

    DO - 10.1126/science.1124141

    M3 - Journal article

    C2 - 16690859

    VL - 312

    SP - 889

    EP - 892

    JO - Science

    JF - Science

    SN - 0036-8075

    IS - 5775

    ER -