Effect of speed and impact angle on solid particle erosion of vanadium carbide coatings produced by thermo-reactive diffusion technique

Abstract

This paper presents research of the solid particle erosion of conventionally and duplex treated vanadium carbide (VC) coatings produced on the C45E steel substrate by the thermo-reactive diffusion (TRD) technique. The Response Surface Methodology (RSM) based on Central Composite Design (CCD) was used to evaluate the effect of moving speed and impact angle as input variables on the erosive wear mass loss as the response. It was established that moving speed of the samples and the impact angle of the abrasive particles are statistically significant factors, while their interaction does not have significant effect on the wear process. The mathematical model of the investigated wear process was derived as well.

Theoretical and experimental studies on the cut zone generated by AWJ process

“…The percentage ratio between the affected and unaffected area of the two sizes is made. The same study was performed in [21] for carbon steel subjected to Vanadium-Carbide coating process, using microhardness and SEM investigation of the layers. In this paper was noticed that substrate microhardness is significantly reduced (up to 30%) directly below the coating with respect of hardness of deeper substrate, while carburized region is modified up to 10%.…”