Thermal Spraying of High Nitrogen Steels

The nitrogen-alloyed steels have outstanding properties. However, nitrogen-alloyed steels are rarely processed by injection molding. In this paper, a nitrogen-alloyed austenitic steel and a nitrogen-alloyed duplex steel are processed using different spraying methods. The influence of both spray processes and parameters is examined. The layers are nitricated by using nitrogen as a secondary plasma gas. However, the embroidery occurred unevenly during the spraying. The high velocity oxyfuel layers show better corrosion and wear behavior than the plasma-sprayed layers. Paper includes a German-language abstract.