Patent ID: 7017645
Filing Date: 2006-03-28
Classification: B22D,C22C,C22F

Abstract:
1. A method of thermoplastically casting an amorphous alloy comprising the steps of: providing a quantity of an amorphous alloy in a molten state above the melting temperature of the amorphous alloy (Tm); cooling said molten amorphous alloy directly to an intermediate thermoplastic forming temperature range above the glass transition temperature of the amorphous alloy and below the crystallization nose temperature, where the crystallization nose temperature (T stabilizing the temperature of the amorphous alloy within the intermediate thermoplastic forming temperature range; shaping the amorphous alloy under a shaping pressure low enough to maintain the amorphous alloy in a Newtonian viscous flow regime and within the intermediate thermoplastic forming temperature for a period of time sufficiently short to avoid crystalization of the amorphous alloy to form a molded part; and cooling the molded part to ambient temperature.