Zinc coatings are widely adopted for cathodic corrosion protection. Mostly the process of choice is hot-dip galvanizing but due to limitations regarding component size and composition of the galvanizing bath it is not always practicable. In the present paper zinc coatings alloyed with Al, Sn, Mg and Cr are applied by twin wire arc spraying to enhance the corrosion protection ability of zinc thermal sprayed coatings. The alloys were characterized and investigated using salt spray test and by means of electrochemical corrosion. Corrosion damage and products were investigated by optical microscopy, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDS) and electron probe microanalysis (EPMA).

electrochemical corrosion, electron probe microanalysis, energy dispersive X-ray analysis, hot-dip galvanizing, optical microscopy, salt spray test, scanning electron microscopy, twin wire arc spraying, zinc alloys
This content is only available as a PDF.
Copyright © 2011 DVS Media GmbH. All rights reserved.
2011
DVS Media GmbH
Topics
Electrochemical corrosion Zinc alloys Hot-dip galvanizing Electric arc spraying Scanning electron microscopy Optical light microscopy Electron probe microanalysis Salt spray testing
Issue Section:
Young Professionals
You do not currently have access to this content.