Anticorrosive Performance of Zinc Phosphate Coatings on Mild Steel Developed Using Galvanic Coupling | Zendy

M. Arthanareeswari | Zendy; P. Kamaraj | Zendy; M. Tamilselvi | Zendy

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Anticorrosive Performance of Zinc Phosphate Coatings on Mild Steel Developed Using Galvanic Coupling

Author(s) -

M. Arthanareeswari,

P. Kamaraj,

M. Tamilselvi

Publication year - 2012

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.436

H-Index - 50

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2013/673961

Subject(s) - chemistry , zinc phosphate , zinc , coating , corrosion , metallurgy , galvanic cell , galvanic anode , copper , phosphate , brass , titanium , thermal stability , cathode , salt spray test , materials science , cathodic protection , electrochemistry , electrode , organic chemistry

The anticorrosive performance of zinc phosphate coatings developed by galvanic coupling technique on mild steel substrates using the cathode materials such as titanium (Ti), copper (Cu), brass (BR), nickel (Ni), and stainless steel (SS) is elucidated in this study. Thermal and chemical stability tests, immersion test in 3.5% NaCl, ARE salt droplet test, and salt spray test were carried out. The study reveals that the mild steel substrates phosphated under galvanically coupled condition showed better corrosion resistance than the one coated without coupling. The open circuit potential (OCP) of phosphated mild steel panels in 3.5% NaCl was found to be a function of phosphate coating weight and porosity of the coating.

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