ABSTRACT
A zinc-aluminum (Zn-Al) composite coating was prepared on a 304 stainless steel surface by dip coating and a thermal sintering method. The microstructure and the phase composition of the composite coating were analysed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Open-circuit potential (OCP), potentiodynamic polarisation curves and electrochemical impedance spectroscopy (EIS) were used to study the electrochemical properties of the coating. The results demonstrate that the Zn-Al composite coating can effectively decrease the corrosion rate of stainless steel, providing an excellent way to solve the corrosion problem in harsh environments.
Disclosure statement
No potential conflict of interest was reported by the authors.
ORCID
Likun Xu http://orcid.org/0000-0001-6927-3005