J043014 Experimental Investigation on Shear Debond Strength of WC-12Co Thermal Sprayed Coating

Abstract

In this research, in order to develop the shearing debond strength of thermal sprayed coating, the scraping shearing test were performed. It was found that the debonding strength of WC-Co thermal sprayed coating is depending on both of the dimension of the test piece and the loading position at around the interface. That is, the apparent critical shear stresses decrease with increasing both of height and width of the test piece. Also, we could find that the apparent critical shear stresses decreases with increasing coating thickness and with decreasing loading point distance measured from the interface.