Thermal Spraying of High Nitrogen Steels Available to Purchase

Nitrogen-alloyed steels have outstanding properties, but are rarely used in thermal spraying. In this study, high-nitrogen duplex and austenitic steels are sprayed using APS and HVOF techniques and the resulting layers are evaluated based on microstructure, composition, and corrosion and wear properties. HVOF layers outperformed the APS layers in corrosion and wear testing, with austenitic steel having the highest corrosion resistance, and duplex steel the highest wear resistance. Paper includes a German-language abstract.