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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    Title :

    New Aluminum Piston Alloy with Increased Fatigue Strength at High Temperatures


    Additional title:

    Sae Technical Papers


    Contributors:
    Beer (author) / Henning (author) / Mielke* (author) / Steffens (author)

    Conference:

    International Congress & Exposition ; 1998



    Publication date :

    1998-02-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    New Aluminum Piston Alloy with Increased Fatigue Strength at High Temperatures

    Mielke, S. / Beer, H. / Society of Automotive Engineers | British Library Conference Proceedings | 1998


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