Nickel-based alloys are a type of alloy that exhibits high strength and certain anti-corrosion properties at temperatures ranging from 650 to 1000°C. According to their primary performance, they are further classified into nickel-based heat-resistant alloys, nickel-based corrosion-resistant alloys, nickel-based wear-resistant alloys, nickel-based precision alloys, and nickel-based shape-memory alloys. High-temperature alloys, based on different matrices, are categorized as iron-based, nickel-based, and cobalt-based high-temperature alloys. Nickel-based high-temperature alloys are commonly referred to as nickel-based alloys.