Patent attributes
A method of forming in-situ composites of metallic alloys comprising an amorphous phase are provided. The method generally comprising the steps of transforming a molten liquid metal at least partially into a crystalline solid solution by cooling the molten liquid metal down to temperatures below a “remelting” temperature, then allowing the solid crystalline metal to remain at temperatures above the glass transition temperature and below the remelting temperature such that at least a portion of the metal remelts to form a partially amorphous phase in an undercooled liquid, and finally subsequently cooling the composite alloy to temperatures below the glass transition temperature. A method of forming in-situ composites of alloys is provided. In one embodiment, forming in-situ composites may include first providing a quantity of an alloy at a temperature above a liquidus temperature of the alloy in a Continuous Cooling Transformation Diagram; and then cooling the alloy to a remelting region in the Continuous Cooling Transformation Diagram of the alloy; and further cooling the alloy to exist the remelting region in the Continuous Cooling Transformation Diagram of the alloy to form the in-situ composite. The alloy may include a binary, a ternary, a quaternary and/or higher order alloy systems.
