Corrosion resistant coating composition of Ni and a phosphate corrosion inhibitor and an electrodeposition method for the manufacture thereof

摘要

A corrosion resistant coating composition for a metal substrate is disclosed. The metal substrate, such as carbon steel, is coated with a first layer comprising a phosphate corrosion inhibitor, such as sodium phosphate monobasic (NaH₂PO₄) and a second layer comprising nickel nanoparticles. In addition, an electrodeposition method for the production of the coating composition is disclosed that uses either pulse or direct current electrodeposition to form the coating composition of desired anticorrosive properties. In addition, a coated metal substrate and method for inhibiting corrosion of a metal substrate that apply the corrosion resistant coating composition in any of its embodiments are disclosed.