Brief description of the 'electrodeposition of a chromium coating comprising solid inclusions and bath employed in this

摘要

The present invention relates to a process adapted to confer on a substrate, a protective coating based on chromium comprising a chromium matrix in which are distributed in the solid particles, said process comprising a step for the electrodeposition of the coating obtained by passing an electric current between the cathode (s) comprising the substrate to be coated and the anode (s), the cathode (s) and the anode (s) being immersed in an electrolytic bath, characterized by the fact that the electrolytic bath is based on an aqueous solution comprising chromium (iii) obtained from the reduction of chromic acid by a reducing agent, this bath containing the solid particles.