Nickel alloy is an alloy based on nickel and added with other elements. The Monel alloy containing about 30% copper, produced around 1905, is an 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 improve certain physical properties. Nickel alloys can be used as materials for electron tubes, precision alloys (magnetic alloys, precision resistance alloys, electrothermal alloys, etc.), nickel-based high-temperature alloys, nickel-based corrosion-resistant alloys, and shape memory alloys. Nickel alloys are widely used in sectors such as energy development, chemicals, electronics, navigation, aviation and aerospace.