The material selection principles of aviation forgings mainly include the following points: strength and durability: Aviation forgings bear huge loads and forces during the use of aircraft, so the strength and durability of materials should be considered when selecting materials. Materials with high strength and high hardness, such as steel and nickel-based alloys, are usually selected to ensure long-term reliable operation of forgings in harsh environments. Corrosion resistance: Aviation forgings are often exposed to high temperature, high humidity, corrosive environments, such as engine parts and landing gear. Therefore, the corrosion resistance of the material should be considered in the selection of materials, and the alloy material with good corrosion resistance should be selected to prevent the forging from being corroded and failing. Fatigue resistance: The cyclic load of the aircraft makes the aviation forgings prone to fatigue damage, so the fatigue resistance of the material is an important consideration in material selection. In general, materials with higher fatigue life and durability are more suitable for use in aviation forgings. Machinability: Aviation forgings usually need to go through complex processing and forming processes, so the machinability of materials is also an important consideration in material selection. Materials that are easy to process, forge and heat treat are more likely to meet the specific shape and size requirements of forgings. Cost-effectiveness: When selecting materials, it is also necessary to consider cost-effectiveness, that is, comprehensive consideration of the performance and price of the selected materials. Under the premise of meeting other requirements, the material with the best performance and price is selected to ensure the economy of the forging. In summary, the material selection principle of aviation forgings is to comprehensively consider the requirements of material strength, durability, corrosion resistance, fatigue resistance, processability and cost-effectiveness, and select high-performance materials that adapt to the aircraft use environment and process requirements.
