A new piston alloy was developed by combining the chemical compositions of copper and silicon rich aluminum alloys. Copper increases fatigue strength at low and intermediate temperatures of up to 250 °C whereas the increased amount of intermetallics raises fatigue strength at high temperature of 340 °C or beyond.Casting difficulties can be handled by grain refinement of the α-aluminum. Engine tests show an increase of the lifetime of the thermally and mechanically highly loaded bowl rims of DI-Diesel pistons by a factor of four.


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    Titel :

    New Aluminum Piston Alloy with Increased Fatigue Strength at High Temperatures


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Beer (Autor:in) / Henning (Autor:in) / Mielke* (Autor:in) / Steffens (Autor:in)

    Kongress:

    International Congress & Exposition ; 1998



    Erscheinungsdatum :

    23.02.1998




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    New Aluminum Piston Alloy with Increased Fatigue Strength at High Temperatures

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