HIGHLY CORROSION-RESISTANT MEMBERS AND PROCESSES FOR PRODUCTION THEREOF

摘要

A highly corrosion-resistant member which comprises a stainless steel substrate, an inner layer covering at least part of the surface of the substrate, and an amorphous carbon film covering at least part of the surface of the inner layer and which is produced by forming the inner layer and the amorphous carbon film at least at a surface temperature of the substrate of as low as 450°C or below; and a highly corrosion-resistant member which comprises a stainless steel substrate whose surface is nitrided and an amorphous carbon film covering at least part of the surface of the substrate and which is produced by conducting the nitriding and the formation of the amorphous carbon film at least at a surface temperature of the substrate of as low as 450°C or below. In the step of producing the above corrosion-resistant members, the surface of the stainless steel substrate is not exposed to high temperature (> 450°C), so that the members exhibit corrosion resistance equivalent to that of original stainless steel.