The evolution of microstructure in a Mg 3.4%AI-0.16%Zn-0.33%Mn alloy tube was studied during deformation by ring hoop tension testing (RHTT). When the tests were carried out at moderate temperatures and relatively high strain rates, the accompanying c-axis strains were mainly accommodated by twin formation. At temperatures above 200°C and the lowest strain rate (0.001s-1), the formation of voids in the partially dynamically recrystallized regions caused premature fracture. The microstructural development in hot gasformed samples was similar to that observed during RHTT testing. These results indicate that RHTT testing is an effective way of studying the deformation behavior of Mg alloys during tube gas forming.


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    Titel :

    Microstructure Development in a Magnesium Alloy Tube during Ring Hoop Tension Testing and Warm Gas Forming


    Weitere Titelangaben:

    Sae Int. J. Mater. Manf
    Sae International Journal of Materials and Manufacturing


    Beteiligte:
    Jonas, J. J. (Autor:in) / Boyle, K. P. (Autor:in) / Jiang, L. (Autor:in) / Martin, P. (Autor:in) / Mishra, R. (Autor:in)

    Kongress:

    SAE World Congress & Exhibition ; 2008



    Erscheinungsdatum :

    2008-04-14


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    2008-01-0212 Microstructure Development in a Magnesium Alloy Tube during Ring Hoop Tension Testing and Warm Gas Forming

    Jiang, L. / Jonas, J.J. / Boyle, K.P. et al. | British Library Conference Proceedings | 2008


    Warm forming of aluminium/magnesium alloy sheet

    Shehata, F. / Painter, M.J. / Pearce, R. | Tema Archiv | 1978


    Warm forming of magnesium sheet metal

    Siegert,K. / Jaeger,S. / Univ.Stuttgart,DE | Kraftfahrwesen | 2004


    Warm Forming of Magnesium Sheet Metal

    Siegert, K. / Jager, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2004