Patent ID: 8657967

Claim:
A process for producing an amorphous Fe-based bulk metallic glass product, formed of an alloy having a chemical formula of Fe100-a-b-c-d-x-y MaNbbSicBdlxJy wherein: M is Co and/or Ni, I is one or more elements of the group consisting of Al, Cr, Cu, Mn, C and P, J is one or more elements of the group consisting of Ti, S, N and O and wherein a, b, c, d, x and y are satisfying the following conditions: 0 wt. %≦a≦46.1 wt. %, 5.4 wt. %≦b≦12.4 wt. %, 2.2 wt. %≦c≦4.4 wt. %, 2 wt. %≦d≦6 wt. %, x<2 wt. % and y<0.2 wt. %, the process comprising the steps of: Providing starting materials, comprising Fe-containing alloys, Melting said starting materials at a temperature above the melting temperature of said materials, Keeping the materials in a molten state, Pouring the molten materials into a mould, Cooling the molten material, to obtain a master alloy, Introducing the master alloy in a melting device, Heating up the master alloy to a temperature above its melting temperature to obtain a molten material, Pouring the molten material into a mould, Cooling the molten material, to obtain the product.