Cast Magnesium Alloys (cast + magnesium_alloy)

Distribution by Scientific Domains
Polymers and Materials Science100%

Kinds of Cast Magnesium Alloys

  • die cast magnesium alloy
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    Selected Abstracts

    Tensile-Compressive Creep Asymmetry of Recent Die Cast Magnesium Alloys,

    ADVANCED ENGINEERING MATERIALS, Issue 9 2007
    S. Xu
    The tensile-compressive creep asymmetry of die cast magnesium alloys is experimentally explored and the possible deformation mechanisms are discussed. Creep tests were performed under tension and compression at 125,°C and 150,°C on die cast Mg alloys AM50, AE44 and AJ62A. Higher tensile than compressive creep strengths were observed for all alloys except for low pressure die cast AM50 at a low creep stress of 35 MPa at 125,°C. An aging treatment of 250 hours at 180,°C was employed for AM50 samples to obtain an over-aged microstructure that would minimize the effects of dynamic precipitation of ,-Mg17Al12 on creep. The creep data for the aged samples showed significant scatter, and the trend in tensile-compressive creep asymmetry of the aged samples is not clear for the short-term creep tests under high creep stresses. [source]

    Veränderungen der mechanischen Eigenschaften von Magnesium-Druckgusslegierungen nach langzeitiger thermischer Beanspruchung

    MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, Issue 2 2004
    D. Regener
    Pressure die cast magnesium alloys; long-term annealing; microstructure; mechanical properties Abstract Die thermische Belastbarkeit von Magnesium-Druckgusslegierungen ist noch nicht ausreichend untersucht. Um die Auswirkung einer thermischen Belastung auf die Gefügestabilität und damit auf das Festigkeits- und Verformungsverhalten einschätzen zu können, werden die Legierungen AZ91, AM50 und AE42 bei 150,°C und 200,°C einer 1000 h-Langzeitglühung unterworfen. Nach der Glühung werden Zugversuche, in situ-Zugversuche und Mikrohärtemessungen bei Raumtemperatur durchgeführt und die Ergebnisse anhand der mikrostrukturellen Veränderungen diskutiert. Changes of the Mechanical Properties of Pressure Die Cast Magnesium Alloys Subjected to Long-Term Thermal Exposure The thermal resistance of pressure die cast magnesium alloys is yet not investigated sufficiently. In order to assess the effect of a thermal exposure on the microstructural stability and on the strength and deformation behaviour, the alloys AZ91, AM50 and AE42 are subjected to a long-term annealing for 1000 h at 150,°C and 200,°C. After the annealing, tensile tests, in situ tensile tests and microhardness measurements are carried out and the results are discussed on the basis of the microstructural changes. [source]

    Tensile-Compressive Creep Asymmetry of Recent Die Cast Magnesium Alloys,

    ADVANCED ENGINEERING MATERIALS, Issue 9 2007
    S. Xu
    The tensile-compressive creep asymmetry of die cast magnesium alloys is experimentally explored and the possible deformation mechanisms are discussed. Creep tests were performed under tension and compression at 125,°C and 150,°C on die cast Mg alloys AM50, AE44 and AJ62A. Higher tensile than compressive creep strengths were observed for all alloys except for low pressure die cast AM50 at a low creep stress of 35 MPa at 125,°C. An aging treatment of 250 hours at 180,°C was employed for AM50 samples to obtain an over-aged microstructure that would minimize the effects of dynamic precipitation of ,-Mg17Al12 on creep. The creep data for the aged samples showed significant scatter, and the trend in tensile-compressive creep asymmetry of the aged samples is not clear for the short-term creep tests under high creep stresses. [source]

    Veränderungen der mechanischen Eigenschaften von Magnesium-Druckgusslegierungen nach langzeitiger thermischer Beanspruchung

    MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, Issue 2 2004
    D. Regener
    Pressure die cast magnesium alloys; long-term annealing; microstructure; mechanical properties Abstract Die thermische Belastbarkeit von Magnesium-Druckgusslegierungen ist noch nicht ausreichend untersucht. Um die Auswirkung einer thermischen Belastung auf die Gefügestabilität und damit auf das Festigkeits- und Verformungsverhalten einschätzen zu können, werden die Legierungen AZ91, AM50 und AE42 bei 150,°C und 200,°C einer 1000 h-Langzeitglühung unterworfen. Nach der Glühung werden Zugversuche, in situ-Zugversuche und Mikrohärtemessungen bei Raumtemperatur durchgeführt und die Ergebnisse anhand der mikrostrukturellen Veränderungen diskutiert. Changes of the Mechanical Properties of Pressure Die Cast Magnesium Alloys Subjected to Long-Term Thermal Exposure The thermal resistance of pressure die cast magnesium alloys is yet not investigated sufficiently. In order to assess the effect of a thermal exposure on the microstructural stability and on the strength and deformation behaviour, the alloys AZ91, AM50 and AE42 are subjected to a long-term annealing for 1000 h at 150,°C and 200,°C. After the annealing, tensile tests, in situ tensile tests and microhardness measurements are carried out and the results are discussed on the basis of the microstructural changes. [source]