PROCESS FOR SURFACE TREATING ALUMINUM OR ALUMINUM ALLOY AND ARTICLE MADE WITH SAME

摘要

A method for surface treating aluminum or aluminum alloy, the method comprising the following steps of: providing a substrate made of aluminum or aluminum alloy; forming a TiON coating on the substrate by magnetron sputtering, using aluminum as a target, and nitrogen and oxygen as reactive gases; and forming a chromium oxynitride coating on the TiON coating by magnetron sputtering, using chromium as a target, and nitrogen and oxygen as reactive gases.