CASTING OF ALUMINUM BASED WROUGHT ALLOYS AND ALUMINUM BASED CASTING ALLOYS

摘要

Preferred embodiments of the present invention include methods that allow for casting alloys, and preferentially casting wrought alloys to circumvent problems such as, for example, hot tearing. Preferred embodiments of the present invention provide for alloys having predominantly spherical primary α-aluminum grains in their microstucture (i.e., substantially free of dendrites ) formed by mixing two liquids of differing compositions the are held at predetermine temperatures, such that when mixed they produce a predetermined alloy composition at a predetermined temperature that is inclined to solidify with a predominantly spherical grain structure that minimizes the alloy’s tendency towards hot tearing.