Abstract
Magnesium phosphate coating suitable for protection against corrosion was prepared by cathodic electrochemical method on a low carbon steel substrate. The influence of different current densities on the thickness, surface morphology and corrosion behavior of the coated samples was established. A scanning electron microscopy (SEM) was used to observe the surface microstructure of the deposits and the crystalline structures of the tested samples were characterized by X-Ray diffraction (XRD) method. Electrochemical impedance spectroscopy (EIS) and polarization measurements were carried out in order to investigate the effects of the different current density on the corrosion behavior of the coatings. The highest corrosion resistance, finest morphology and lowest porosity were obtained with the magnesium phosphate coating produced at current density of 6 mA/cm2. In the case of the coatings produced beyond this current density, the coating was non-uniform and the thickness of the coating decreased. Furthermore, X-Ray diffraction studies confirmed the formation of the Newberyite structure in the coating.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
