Arthanareeswari, M and Sankara Narayanan, T S N and Kamaraj, P and Tamilselvi, M (2012) Polarization and impedance studies on zinc phosphate coating developed using galvanic coupling. Journal of coatings technology and research, 9 (1). pp. 39-46.
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Galvanic coupling technique is capable of producing coatings of desired thickness. Good quality coatings can be produced at low temperature. Galvanic coupling of mild steel (MS) with the other cathode materials such as titanium (Ti), copper (Cu), brass (BR), nickel (Ni), and stainless steel (SS) accelerates iron dissolution, enables quicker consumption of free phosphoric acid and facilitates an earlier attainment of point of incipient precipitation, resulting in a higher amount of coating formation. In the present investigation, potentiodynamic polarization and electrochemical impedance spectra on MS substrates phosphated using galvanic coupling arc studied. This study reveals that MS substrates phosphated under galvanically coupled condition possess better corrosion resistance than the substrates phosphated under uncoupled condition.
|Uncontrolled Keywords:||Cathode materials; Phosphatability; Corrosion resistance; Mild steel; Galvanic coupling|
|Deposited By:||Dr. A K Sahu|
|Deposited On:||26 Mar 2012 11:58|
|Last Modified:||26 Mar 2012 11:58|
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