METHOD FOR TREATING FERROUS ALLOY PARTS IN ORDER TO IMPROVE THE RUBBING PROPERTIES THEREOF WITHOUT CAUSING HARDNESS LOSS OR DEFORMATION

摘要

The invention relates to a method for obtaining a ferrous alloy part that supports a very high seizure load with very low dispersion. The inventive method consists in covering said part with an iron sulphide coating having an appropriate thickness and Fe/S ratio. Said method is characterised in that the coating is selected from among those with surfaces having a fractal dimension that is at least equal to 2.6. The invention also relates to the parts obtained using said method.