This paper investigates the comparative microstructural and mechanical characteristics of fusion welds (TIG) and solid-state welds (FSW) of Al-4.5 Mg-0.26 Sc heat-treatable aluminium alloy. Microstructures of base metal and welded zones are analyzed by optical (OM) and transmission electron (TEM) microscopy. Particular emphasis is laid on the evolution of hardening precipitates in welded areas. The corresponding mechanical properties are evaluated through microhardness measurements and uniaxial tensile tests. The effect of a post-weld heat treatment on both microstructure and mechanical properties is further examined. The results suggest that hardening precipitates are comparatively more affected by the TIG than by the FSW process. This results in a substantial reduction of mechanical properties of TIG welds that can be partially recovered through a post-weld heat treatment.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Comparison of TIG welded and friction stir welded Al-4.5Mg-0.26Sc alloy


    Beteiligte:
    Munoz, A. Cabello (Autor:in) / Rückert, G. (Autor:in) / Huneau, B. (Autor:in) / Sauvage, X. (Autor:in) / Marya, S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2008


    Format / Umfang :

    7 Seiten, 5 Bilder, 2 Tabellen, 19 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Friction-stir welded structure

    HATA TSUNEHISA / HIROBE TOSHIKAZU | Europäisches Patentamt | 2015

    Freier Zugriff

    Friction-stir welded structure

    HATA TSUNEHISA / HIROBE TOSHIKAZU | Europäisches Patentamt | 2016

    Freier Zugriff

    FRICTION-STIR WELDED STRUCTURE

    HATA TSUNEHISA / HIROBE TOSHIKAZU | Europäisches Patentamt | 2016

    Freier Zugriff

    Friction-stir welded structure

    HATA TSUNEHISA / HIROBE TOSHIKAZU | Europäisches Patentamt | 2016

    Freier Zugriff

    FRICTION-STIR WELDED STRUCTURE

    HATA TSUNEHISA / HIROBE TOSHIKAZU | Europäisches Patentamt | 2015

    Freier Zugriff