BULK NICKEL-IRON-BASED, NICKEL-COBALT-BASED AND NICKEL-COPPER BASED GLASSES BEARING CHROMIUM, NIOBIUM, PHOSPHORUS AND BORON

摘要

Ni—Fe, Ni—Co, and Ni—Cu-based bulk metallic glass forming alloys are provided. The alloys have critical rod diameters of at least 1 mm and in some instances at least 11 mm. The alloys have composition according to Ni(100-a-b-c-d-e)XaCrbNbcPdBe, wherein X is at least one of Fe, Co, and Cu, the atomic percent X (Fe and/or Co and/or Cu) ranges from 0.5 to 30, the atomic percent of Cr ranges from 2 to 15, the atomic percent of Nb ranges from 1 to 5, the atomic percent of P ranges from 14 to 19, the atomic percent of B ranges from 1 to 5, and the balance is Ni.

主权项

1. An alloy capable of forming a metallic glass, the alloy represented by the following formula (subscripts denote atomic percent):
Ni(100-a-b-c-d-e)FeaCrbNbcPdBe, whereina ranges from 0.5 to 15, b ranges from 2 to 15, c ranges from 1 to 5, d ranges from 14 to 19, and e ranges from 1 to 5;
wherein the alloy has a critical rod diameter of at least 1 mm.