Figure 5. Representative optical microscopy of the Nano coated on the ferrite and perlite substrate. Dark grey phases are alumina adhered on the substrate after blasting.
Figure 6 shows the SEM image of the Micro coating and the EDS mapping of the Cr. The images allow us to understand that the lightest gray phase of the layer observed in the SEM refers to the NiCr metal, while the darkest phase is Cr3C2 rich in Cr. Thus, the images allow us to observe the architecture of the layer with the morphology of the splats of different natures.