COMPOSITE FOR IRON-BASED AMORPHOUS ALLOY WITH HIGH OXIDATION RESISTANCE AND METHOD OF MANUFACTURING IRON-BASED AMORPHOUS ALLOY POWDER

摘要

PURPOSE: A high-oxidation resistance Fe-based amorphous alloy composition and a Fe-based amorphous alloy powder preparing method using the same are provided to obtain Fe-based amorphous alloy with high oxidation resistance and strength using the high-oxidation resistance Fe-based amorphous alloy composition able to be powdered under the atmospheric pressure. CONSTITUTION: A Fe-based amorphous alloy powder preparing method comprises the steps of: melting Fe-based alloy composition, injecting gas at 2~10 atmospheric pressure into the liquid metal, cooling and pulverizing the liquid metal to make powder, and collecting the pulverized Fe-based alloy to a collector, wherein the Fe-based alloy composition comprises C 1.4~2.4 weight%, silicon 1.2~2.2 weight%, boron 1.6~3.0 weight%, chrome 15.7~26.7 weight%, ruthenium 2.1~3.7 weight%, molybdenum 0.2~0.9 weight%, manganese 1.4~2.3 weight%, and the rest Fe, and the gas injection process is carried out under the atmospheric pressure.