Investigation of Wear Behavior of TiC Additive Stainless Steel Coatings Produced by High Pressure Cold Spray Method

In this study, commercial 430L stainless steel powder and TiC powder were mixed in specific proportions. The prepared powders were coated onto steel substrates using the high-pressure cold spray method (HPCS). Micro-hardness and surface roughness measurements were performed after coating. The resulting materials were examined using an optical microscope and a scanning electron microscope (SEM) for microstructural analysis. X-ray diffraction analysis (XRD) was used for phase analysis. Furthermore, the coatings were abraded to the ball-on-disc wear level, and wear scars were analyzed using SEM and energy dispersive X-ray Spectroscopy (EDS) to investigate wear mechanisms. The results indicate that TiC addition increases hardness and wear resistance. The wear rates were obtained in the range of 1.24-1.57 mm3/Nm with increasing TiC addition. Changes in wear mechanisms were also detected with increasing TiC addition. Furthermore, the hardness values were obtained in the range of 256-391 HV depending on the TiC addition.