preparation and corrosion resistance of a titanium-zirconium-tartaric acid(TZT) conversion coating on HDG steel.

Conversion coatings are thin protective films applied to metal surfaces. They help prevent metaldegradation and improve adhesion for additional coatings on top. A specific type of conversioncoating was developed using a combination of titanium, zirconium, and tartaric acid. This coatingwas successfully applied to hot-dip galvanized steel at a pH of ۴ and room temperature.This non-chromium conversion coating is environmentally friendly and enhances the corrosionresistance of the hot-dip galvanized steel, especially in saline solutions. The effectiveness of thistitanium-tartaric acid conversion coating was evaluated using electrochemical impedancespectroscopy. The key aspect is that the tartaric acid forms a complex with the titanium ions in theconversion coating.

کلیدواژه ها:

Adhesive Coaings ، Thin Film ، Corroion