Corrosion study of graphene coatings on carbon steels
Hafid Suharyadi, Toegas Soegeng Soegiarto, Umi Yuliatin

Politeknik Energi dan Mineral Akamigas, Ministry of Energy and Mineral Resources

Abstract

The functionalized graphene with epoxy was applied on carbon steel pipes ASTM A53 grade B. The corrosion properties of coated and uncoated carbon steels were evaluated using a three-electrode cell system in NaCl solution at room temperature. The findings suggest a shift of corrosion potential value, a decrease of corrosion current density and corrosion rate, and an increase of inhibition efficiency by applying graphene-epoxy coatings on the substrate. This is attributed to the role of functionalized graphene networks that hinders chloride ions penetrate into the carbon steel surface.

Keywords: graphene, epoxy, composite coating, corrosion, carbon steel

Topic: Engineering