An effective and novel pore sealing agent to enhance the corrosion resistance performance of Al coating in artificial ocean water.

ABSTRACT: A new technique was accepted to fill the porosity of Al coating applied by arc thermal spray process to enhance corrosion resistance performance in artificial ocean water. The porosity is the inherent property of arc thermal spray coating process. In this study, applied coating was treated with different concentrations of ammonium phosphate mono basic (NH₄H₂PO₄: AP) solution thereafter dried at room temperature and kept in humidity chamber for 7d to deposit uniform film. The corrosion resistance of Al coating and treated samples have been evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic techniques with exposure periods in artificial ocean water. Electrochemical techniques, X-ray diffraction (XRD), Raman spectroscopy, atomic f

SUBMITTER: Lee HS 

PROVIDER: S-EPMC5291225 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature