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.
New Aluminum Piston Alloy with Increased Fatigue Strength at High Temperatures
Sae Technical Papers
International Congress & Exposition ; 1998
1998-02-23
Conference paper
English
New Aluminum Piston Alloy with Increased Fatigue Strength at High Temperatures
British Library Conference Proceedings | 1998
|New aluminium piston alloy with increased fatigue strength at high temperatures
Automotive engineering | 1998
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