Aircraft forgings are an important component of aircraft structures, so their safety performance is critical. Among them, stress corrosion is a common form of material failure, which can cause serious damage to the forgings and even lead to accidents. To prevent stress corrosion behavior in aircraft forgings, here are several effective measures:
- Reasonable design of materials and processes
Firstly, selecting appropriate materials and processes in design can effectively reduce the risk of stress corrosion in forgings. For example, in the manufacturing of aluminum alloy forgings, high-purity aluminum, an appropriate amount of alloy elements, strict control of processing temperature and speed and other process requirements can significantly reduce the possibility of stress corrosion in aluminum alloy forgings.
- Regular inspection and maintenance
Once stress corrosion occurs in aircraft forgings, it often rapidly expands and penetrates into the material, posing a threat to aircraft safety. Therefore, regular inspection and maintenance is very important. For example, in a certain aircraft manufacturing company, if there are suspected corrosion spots or defects on the surface of forgings during maintenance, they will be immediately replaced or repaired.
- Strengthen material R&D and testing
In addition, strengthening material R&D and testing is also an important measure to prevent stress corrosion. For example, a certain enterprise has conducted long-cycle water-like experiments, hydrogen embrittlement tests, accelerated corrosion tests and other multiple tests on new forgings to ensure that they are less susceptible to stress corrosion in use.
In summary, appropriate material selection, process control, regular maintenance, and strenghtening of R&D testing should be taken to effectively prevent stress corrosion in aircraft forgings. Only then can the safe operation of aircraft be better guaranteed.
