Nickel alloy is an alloy composed of nickel as a base and other elements. Monel, made around 1905 with about 30% copper, was the earlier nickel alloy. Nickel has good mechanical, physical and chemical properties. Adding appropriate elements can improve its oxidation resistance, corrosion resistance, high temperature strength and some physical properties. Nickel alloy can be used as electronic tube material, precision alloy (magnetic alloy, precision resistance alloy, electric heating alloy, etc.), nickel base superalloy and nickel base corrosion resistance alloy and shape memory alloy. In energy development, chemical, electronics, navigation, aviation and aerospace sectors, nickel alloys are widely used.