Inspect And Identify Aircraft Corrrosion Flashcards
Where is filiform corrosion most likely to occur on an aircraft?
Under a dense coating of topcoat enamel such as polyurethane. Filiform corrosion is caused by improperly cured primer.
Where is fretting corrosion most likely to occur on an aircraft?
Along the grain boundaries of aluminum alloys that have been improperly heat-treated. Extruded aluminum alloy is susceptible to intergranular corrosion.
Where is dissimilar metal corrosion most likely to occur on an aircraft?
Anywhere different types of metal come in contact with each other, especially where moisture is present.
Where is stress corrosion most likely to occur on an aircraft?
In any metal component that is continually under tensile stress. The metal around holes in casting fitted with pressed-in bushings is susceptible to stress corrosion.
