In this paper, a low-power plasma spraying system is used to deposit layers of tungsten carbide on carbon steel substrates. Numerous coating samples were produced and examined in order to determine how plasma gas composition, voltage, current, and other parameters affect the hardness and porosity of WC coatings and how injected particles interact with nozzle surfaces. Test results indicate that there is a tendency for less particle adherence to the nozzle at higher voltages, lower currents, and certain plasma gas compositions. Paper includes a German-language abstract.

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