Metal materials are widely used in the aerospace field, including aluminum alloys, magnesium alloys, titanium alloys and nickel-molybdenum-tungsten alloys. These alloy materials have a long service life, excellent corrosion resistance and high temperature resistance, so they are widely used in aircraft and aerospace fields. Among them, aluminum alloy materials account for about 50%-70% of aircraft materials. In addition, metal materials also have an important position in the field of aerospace, such as metal matrix composites have broad application prospects in aerospace applications. The application of metal materials in the aerospace field is of great significance for improving the performance and safety of aircraft.