Surface corrosion on aluminum aircraft skins, nears joints and around fasteners is often an indicator of buried structural corrosion and cracking. Aircraft paints are routinely removed to reveal the presence of corrosion on the surface of metal structures, and the aircraft is subsequently repainted. This process is expensive, time consuming, and results in the generation of air pollution and process waste. A method is needed to detect the early onset of corrosion on metal substrates covered by protective coatings so that aircraft paints do not have to be stripped without cause. By employing nondestructive techniques to inspect the aircraft exterior structure without removing coatings, the amount of stripping and reapplication of coatings that occurs at the military rework facilities can be substantially reduced.
Nondestructive Testing of Corrosion Under Coatings
2000
52 pages
Report
No indication
English
Nonferrous Metals & Alloys , Coatings, Colorants, & Finishes , Corrosion , Nondestructive testing , Structural properties , Cracks , Electrochemistry , Surfaces , Coatings , Aluminum , Protective coatings , Paints , Skin(Structural) , Serdp collection , Serdp(Strategic research and development program)
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