Some cobalt based coatings have excellent antifretting properties when rubbed against titanium alloy hardware. The coatings are presently used in the gas turbine industry for specific antifretting applications. Their superior performance compared to the current art CuNiIn coatings has been demonstrated. This paper discusses the influence of coating structure on its mechanical properties and antifretting performance. The coating structure can be greatly modified by changing the coating application method (HVOF or plasma spraying). HVOF (High Velocity Oxygen-Fuel) and plasma spray equipment together with TriplexPro™ 200 gun configured to spray HVOF and plasma type coatings were used. The resulting coating properties can be tailored to specific application requirements encountered in aircraft engines and other industrial applications.

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