Which type of corrosion is commonly found in aircraft structures?

Pitting corrosion is a localized form of corrosion that often occurs in aircraft structures, particularly due to the harsh environmental conditions that these structures are frequently exposed to. This type of corrosion manifests as small, pit-like holes in the metal surface, which can significantly weaken the material.

In aviation, aluminum alloys are commonly used due to their lightweight and strength; however, they are susceptible to pitting corrosion when exposed to moisture and contaminants, especially in the presence of chlorides. Pitting corrosion can develop unnoticed, which makes it particularly dangerous as it can compromise the structural integrity of the aircraft without any external signs until it reaches an advanced stage.

Understanding the risks associated with pitting corrosion is crucial for aircraft maintenance and safety, as it enables structural mechanics to implement appropriate inspections, preventative measures, and repairs to ensure the longevity and safety of aircraft. Other types of corrosion, while they may also affect aircraft structures, are typically less common or relevant in comparison to pitting corrosion.