High-carbon iron-based amorphous alloy using molten pig iron and method of manufacturing the same

A method of manufacturing a high carbon iron-based amorphous alloy comprising:

• preparing molten pig iron containing carbon (C) of at least 13.5 atomic %;
• adding at least one of Fe—Si alloy, Fe—B alloy, Fe—P alloy and Fe—Cr alloy into the molten pig iron and melting the alloy into the molten pig iron to prepare a molten composition expressed by the following general formula:
• FeαCβSiγBxPyCrz, where α, β, γ, x, y and z are respective atomic % of iron (Fe), carbon (C), silicon (Si), boron (B), phosphorus (P) and chromium (Cr), wherein a is expressed by α=100−(β+γ+x+y+z) atomic %, β is expressed by 13.5 atomic %≦β≦17.8 atomic %, γ is expressed by 0.30 atomic %≦γ≦1.50 atomic %, x is expressed by 0.1 atomic %≦x≦4.0 atomic %, y is expressed by 0.8 atomic %≦y≦7.7 atomic % and z is expressed by 0.1 atomic %≦z≦3.0 atomic %;
• and
• rapidly quenching the molten composition to form the iron-based amorphous alloy.