Characterization and Kinetics of VC Coatings on AISI D3 Steel Performed by Thermo-Reactive Diffusion Technique Charakterisierung und Kinetiken von durch thermoreaktive Diffusion auf AISI D3-Stahl erzeugten VC-Beschichtungen

In the present study, VC coatings on AISI D3 steel were processed by pack method thermo-reactive diffusion method (TRD) in a solid medium for 2 and 4 h at 950, 1 000, 1 050 and 1 100 °C, respectively. Then, the coated specimens were characterized by scanning electron microscopy, energy dispersive X-ray spectrometry and X-ray diffraction analysis. From the results, between 5.6 and 26.8 μm carbide layers on the surface were obtained by increasing process time and temperature. The coatings were determined by VC and V2C phases. The kinetics of vanadium carbide