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Öğe Effect of heat treatment on the wear and corrosion behaviors of a gray cast iron coated with a colmonoy 88 alloy deposited by high velocity oxygen fuel (HVOF) thermal spray(2013) Öz, A.; Samur, R.; Mindivan, H.; Demir, A.; Sagiroglu, S.; Yakut, A.K.The present work has been conducted in order to determine the influence of heat treatment on the wear and corrosion behaviours of a gray cast iron substrate coated with a Ni base coating deposited by HVOF thermal spray. The wear resistance of the coatings was obtained using a reciprocating wear tester by rubbing a 10 mm diameter steel ball on the coatings at normal atmospheric conditions. Corrosion tests were performed using potentiodynamic polarization measurements in a 3,5 % NaCl solution. It was observed that the corrosion and wear resistance of the coatings increased along with the reduction of porosity and roughness by the heat treatment.
