Nickel-based alloy is a high-performance alloy with nickel (content ≥ 50%) as the matrix, and added with chromium (Cr), molybdenum (Mo), cobalt (Co), iron (Fe), titanium (Ti) and other elements. Its core advantages are high temperature resistance, corrosion resistance, oxidation resistance and high strength, and it is widely used in extreme environments such as high temperature, high pressure, strong corrosion and other scenes