1. IntroductionCurrent demands in the automotive industry focus onimproving the engine efficiency and reduce energy consumption.Those goals lead to design combustion engines with higher pressure thermal cycles and the use of “stop/start” and hybrid systems[1]. Therefore, the working conditions of bearings in the enginesbecome harder with higher load and friction, which reduces the lifetime of the component. New alloys or composites with higherstrength, fatigue and wear resistance, and lubricant wettability areneeded.