Is there any way to prevent corrosion of the screw!

The injection molding material ring of the screw of the injection molding machine contains a lot of titanium dioxide! Is there any way to prevent corrosion of the screw?
The injection molding material ring of the screw of the injection molding machine contains a lot of titanium dioxide! Many materials have been tried and corroded within one month! Is there any way to prevent corrosion of the screw! The raw material currently used is 9cr18mov! I heard that the corrosion resistance of the material can be improved by plating, titanium, and zinc plating! Can it work?