The PolyU Aviation Services Research Centre (ASRC) has developed a system that can automatically detect and analyse pitting corrosion on jet engine blades and vanes without damaging them. Accurately measuring the depth of pitting is crucial as it determines whether components need servicing or replacing. The system is more accurate than human visual inspection and speeds up the inspection process.
Pitting corrosion can be found on the airfoils of aircraft engine blades and vanes when they have been in service for a long time. Before this research, the only way to assess the extent of pitting was through visual inspection by the operator. This project has identified for the first time which non-destructive testing technologies are best suited to this task.
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