Patent ID: 7201210

Claim:
A method for casting alloys, comprising: heating a first aluminum-based alloy to form a first liquid alloy of a first composition (C 1 ) at a first temperature (T 1 ); heating a second alloy to form a second liquid alloy of a second composition (C 2 ) at a second temperature (T 2 ) such that (T 1 ) is great than (T 2 ), and wherein the first composition (C 1 ) has a lesser weight percent of total alloying elements as compared to the second composition (C 2 ); combining the first liquid alloy and second liquid alloy to form a supercooled resultant alloy; and casting supercooled the resultant alloy to produce a solid alloy with at least one of a predominantly globular, cellular, and rosette like microstructure that is substantially free of dendrites.