Atmospheric plasma sprayed carbide cermet coatings have more porosity, lower hardness and bond strength compared with HVOF(High Velosity Oxy-Fuel) sprayed coatings. This paper described hybrid technique combined with plasma spraying and metal diffusion treatment in order to get improved denser, harder and higher bond strength coatings. In this study, a pure chromium carbide layer, perfomed on the top of the coating area, was evaluated by cross sectional SEM image, X-ray diffraction analyis, microhardness tests. This perfomed layer showed extremely high density with outstanding hardness values in terms of plasma sprayed carbide coatings has been achieved.

This content is only available as a PDF.
You do not currently have access to this content.