Two new magnesium die casting alloys, AM-lite and AM-HP2, are presented. The attributes of AM-lite are such that it competes very favorably in a wide range of applications with the existing magnesium general purpose diecasting alloy (AZ91D), zinc diecasting alloys, aluminum alloys and plastics. The alloy is intended to produce high quality surface finishing products such as consumer electronics, automotive decorative trim, and domestic and commercial fittings. Because of the considerable cost savings in comparison to its competitors, it is expected that in the coming year usage of the alloy will grow considerably. The other alloy, AM-HP2, has been specially developed to provide a highly diecastable creep resistant alloy that is suitable for powertrain components. As powertrain applications advance it is critical to not only meet the operational performance criteria but to also be able to manufacture the part in a cost effective manner. The combined diecastability and high temperature performance of AM-HP2 can be described in relation to other creep resistant magnesium alloys with reference to a castability/creep performance space diagram suggested by Aghion et al. This diagram describes the relative positions of various alloys with respect to their ease of casting and their elevated temperature performance. AM-HP2 has been shown to have a diecastability that is comparable to AZ91D and elevated temperature creep properties that are superior to the other alloys and which meet performance demands for one of the most demanding of powertrain applications, the engine crankcase.


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    Title :

    New magnesium diecasting alloys for decorative and powertrain applications


    Additional title:

    Neue Magnesium-Druckgusslegierungen für dekorative Anwendungen und den Motorenbau


    Contributors:
    Dunlop, G.L. (author) / Abbott, T. (author) / Murray, M.T. (author) / Bettles, C.J. (author) / Gibson, M.A. (author)


    Publication date :

    2005


    Size :

    10 Seiten, 12 Bilder, 4 Tabellen, 6 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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