Dry sliding behavior of thermal sprayed ferrous coatings on Aluminium alloy

The development of lightweight internal combustion engines using materials such as cast aluminum alloys represents one of the most significant technological developments in automotive industry. This paper presents dry sliding behavior of two ferrous based coatings on aluminum alloy using a HighVelocity OxyFuel (HVOF) process. Febase coatings have the potential for very good favorable wear properties combined with a low cost level due to relatively low priced alloy materials. In this study two different Febase materials have been sprayed by liquid fuel HVOF spraying and microstructure, microhardness, wear rate were analysed. Wear tests were performed using a pinon disc type tribometer at 10 and 50 N load and 1 m/s, 2 m/s sliding speed against HSS pins at room temperature.