TOUGH IRON-BASED BULK METALLIC GLASS ALLOYS

摘要

PROBLEM TO BE SOLVED: To provide a family of iron-based, phosphor-containing bulk metallic glasses having excellent processability and toughness, methods for forming such alloys, and processes for manufacturing articles therefrom.SOLUTION: The iron-based alloy is based on the observation that by very tightly controlling the composition of a metalloid moiety of Fe-based, P-containing bulk metallic glass alloys it is possible to obtain highly processable alloys with surprisingly low shear modulus and high toughness. Further, by incorporating small fractions of silicon (Si) and cobalt (Co) into a Fe-Ni-Mo-P-C-B system, alloys of 3 and 4 mm have been synthesized with high saturation magnetization and low switching losses.SELECTED DRAWING: Figure 1