The demand for magnesium prototypes is growing very rapidly with the increasing number of new applications for magnesium die castings. Plaster mold casting is becoming more used amongst all other prototyping methods because it can produce castings with thin walls, smooth surface finish and close dimensional tolerances. However plaster mold casting of magnesium alloys has only been used until now by a few foundries because of the risks of violent reaction if the process is not carefully controlled. For this reason, very little quantitative information about properties of plaster cast magnesium alloys is available in the literature.In this study, mechanical, corrosion resistance and microstructural properties of alloy AZ91E are reported as a first phase of the work being conducted at the Institute. As cast (F), solution annealed (T4) and solution annealed and aged (T6) properties of 12,5 mm (1/2 inch) diameter test bars were studied. The influence of chilling, grain refining and combination of both was investigated. Comparative data on corrosion resistance of plaster cast and sand cast plates are also reported.The experimental results show that:


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    Titel :

    Properties of Magnesium Plaster Castings


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Congress & Exposition ; 1991



    Erscheinungsdatum :

    01.02.1991




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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