1969-02-01

Development of Piston Ring Coatings 690754

This paper outlines the procedure used at Perfect Circle to determine coating application parameters, to evaluate coating quality, and to evaluate coating performance for new piston ring coatings. It includes descriptions of bench tests, procedures for measurement of physical properties, and descriptions of test techniques The paper outlines a sound engineering approach to developing and evaluating wear coatings for piston rings which can be extended to other coating applications.

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