A comparative study of corrosion inhibitors on hot-dip galvanized steel

作者：Kartsonakis Ioannis A; Stanciu Stefan G; Matei Alecs A; Hristu Radu; Karantonis Antonis; Charitidis Costas A

来源：Corrosion Science, 2016, 112: 289-307.

DOI：10.1016/j.corsci.2016.07.030

• Steel
• Zinc
• EIS
• SEM
• X-ray diffraction
• Pitting corrosion

This study investigates the morphology, composition and corrosion resistance of hot dip galvanized (HDG) steel panels treated by immersion in NaCl solution in the presence of six protective compounds: 8-hydroxyquinoline, 2-mercaptobenzothiazole, 5-amino-1,3,4-thiadiazole-2-thiol, calcium phosphate, cerium nitrate and sodium molybdate. The results reveal that upon corrosion new compounds are formed onto the exposed areas of the treated panels. The presence of these compounds on the surface of the HDG steel panels hinders the corrosion process by reducing the rate of the anodic and cathodic reactions. The conducted experiments provide new insights on the corrosion mechanisms of HDG steel.

• 出版日期2016-11