Extrusion fabrication process for discontinuous carbide particulate metal matrix composites and super hypereutectic A1/Si

摘要

The invention relates to a method for forming high performance metal alloys using powder metallurgy. Alloys are extruded under controlled temperature conditions through an extrusion die containing non-metal bearing inserts. This allows the extrusion of hypereutectic alloys without excessive wear of the extrusion die.