CORROSION BEHAVIOR OF ZIRCONIUM TREATED MILD STEEL WITH AND WITHOUT ORGANIC COATING: A COMPARATIVE STUDY

Alireza Ghanbari and Mohammadreza Mohammadzade Attar ()
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Alireza Ghanbari: Polymer Engineering and Color Technology Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
Mohammadreza Mohammadzade Attar: Polymer Engineering and Color Technology Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran

Surface Review and Letters (SRL), 2014, vol. 21, issue 06, 1-9

Abstract: In this study, the anti-corrosion performance of phosphated and zirconium treated mild steel (ZTMS) with and without organic coating was evaluated using AC and DC electrochemical techniques. The topography and morphology of the zirconium treated samples were studied using atomic force microscopy (AFM) and field emission scanning electron microscope (FE-SEM) respectively. The results revealed that the anti-corrosion performance of the phosphate layer was superior to the zirconium conversion layer without an organic coating due to very low thickness and porous nature of the ZTMS. Additionally, the corrosion behavior of the organic coated substrates was substantially different. It was found that the corrosion protection performance of the phosphate steel and ZTMS with an organic coating is in the same order.

Keywords: Zirconium conversion coating; corrosion; organic coating; EIS (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S0218625X14500887

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