Aluminum casting alloy used for piston, comprises alloy which is near-eutectic to hyper-eutectic aluminum silicon-based alloy, phosphorus and ytterbium and further comprises finely crystalline primary silicon

摘要

An aluminum casting alloy comprises alloy which is near-eutectic to hyper-eutectic aluminum silicon-based alloy, 10-200 ppm phosphorus and ytterbium, and further comprises finely crystalline primary silicon. An independent claim is included for preparation of aluminum cast alloy.