1966-02-01

Protective Coatings for Extended Life of Aircraft Jet Engine Parts 660310

One of the problems associated with long part life in aircraft jet engines is wear in nonlubricated mating parts resulting from vibration, fretting, impact, or sliding during engine operation. A significant improvement in the life of engine parts subject to this type of wear can be achieved by coating mating surfaces with protective, wear resistant materials. Numerous plasma sprayed and detonation flame plated coatings have been developed for this purpose. Successful use of the plasma sprayed coatings in these applications is dependent on development of the necessary coating properties and strict control of the coating process. Engine experience with both types of protective coatings has been most successful when coatings are tailored to the environment and type of wear encountered.

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