The effect of spraying distance on wear resistance of molybdenum coatings

Thermally sprayed molybdenum coating is one of the most wear resistance coatings and, therefore, widely used in many practical applications. The paper reports a significant dependency of wear resistance of molybdenum coating on the spraying distance. Also, the influence of test configuration and conditions on the wear performance ranking of molybdenum coatings is outlined. In this study a plasma spraying process was used to deposit molybdenum coating from four different distances. Wear resistance of the coatings was assessed under a number of test condditions and with the help of three different test configurations.