Wear-resistant and corrosion-resistant hard alloy powder and preparation method thereof

The invention provides wear-resistant and corrosion-resistant hard alloy powder and a preparation method thereof.The wear-resistant and corrosion-resistant hard alloy powder is composed of, by mass, 11.5-28.5% of a first raw material and 71.5-88.5% of a second raw material, the first raw material is composed of nickel powder, chromium powder, molybdenum powder, niobium powder and chromium carbide powder, and the second raw material is composed of nickel powder, chromium powder, molybdenum powder, niobium powder and chromium carbide powder; the second raw material is composed of iron powder, cobalt powder and tungsten carbide powder; the preparation method sequentially comprises the steps of mixture preparation, ball milling material preparation, drying treatment, sintering treatment and mechanical crushing. According to the wear-resistant and corrosion-resistant hard alloy powder prepared through the preparation method, the wear resistance and the corrosion resistance can be further improved ...