New Aluminum Piston Alloy with Increased Fatigue Strength at High Temperatures 980687
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.
Citation: Mielke*, ., Steffens, ., Beer, ., and Henning, ., "New Aluminum Piston Alloy with Increased Fatigue Strength at High Temperatures," SAE Technical Paper 980687, 1998, https://doi.org/10.4271/980687. Download Citation
Author(s):
Mielke*, Steffens, Beer, Henning
Affiliated:
KS Kolbenschmidt GmbH, Germany
Pages: 7
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Advancements in Fatigue Research and Applications-SP-1341
Related Topics:
Aluminum alloys
Pistons
Copper
Chemicals
Fatigue
Alloys
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
