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http://dx.doi.org/10.5762/KAIS.2013.14.9.4117

Experimental Study on Coating Corrosion Characteristics of Heat Exchanger for Sea Water  

Kwon, Young-Chul (Department of Mechanical Engineering, Sunmoon University)
Kim, Ki-Young (Department of Mechanical Engineering, Sunmoon University)
Huh, Cheol (Offshore CCS Research Unit, Maritime & Ocean Engineering Research Insititue, Korea Institute of Ocean Science and Technology)
Cho, Meang-Ik (Offshore CCS Research Unit, Maritime & Ocean Engineering Research Insititue, Korea Institute of Ocean Science and Technology)
Kwon, Jeong-Tae (School of Mechanical Engineering, Hoseo University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.9, 2013 , pp. 4117-4123 More about this Journal
Abstract
In the present study, coating corrosion characteristics of the heat exchanger for sea water are experimentally investigated. Coating types by a teflon, an electrodeposition and a ceramic+silicon were tested and compared with the corrosion characteristics of an aluminum. For the acceleration of corrosion by sea water, the temperature of sea water $70^{\circ}C$ and the concentration of salt 3.5% were considered. And the specimens were immersed in sea water during 9 weeks. Coating corrosion characteristics were measured by using the impedance method and SEM. Experimental results showed that polarization resistances obtained from Bode plot were related to the corrosion resistance of coating types, and the corrosion resistance of double coating were maintained during 4 weeks. From SEM photograph, we saw that blisters was generated on the interface between metal and coating.
Keywords
Coating; Impedance; Immersion; Resistance; Sea water; SEM;
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1 G. W. Walter, A Critical Review of the Protection of Metals by Paints, Corros. Sci, Vol. 26, No. 1, pp. 27-38, 1986. DOI: http://dx.doi.org/10.1016/0010-938X(86)90121-6   DOI   ScienceOn
2 I. Epelboin and M. keddam, Faradaic Impedacnes : Diffusion Impedance and Reaction Impedance, J. Electrochem. Soc, Vol 117, No. 8, pp. 1052-1056, 1970 DOI: http://dx.doi.org/10.1149/1.2407718   DOI
3 Y. G. Song and H. J. Kim, Electrochemical Behaviour of Surface Treated Steel Sheets Applied By A.C. Impedance Technique, J. of the Korean Inst. of Met. & Mater. Vol. 31, No. 5, pp. 658-665, 1993   과학기술학회마을
4 S. C. Park, I. M. Park, Y. G. Song and J. R. Park, Corrosion Behaviors and Electrochemical Impedance Characteristics of Organic Coated Steel, J. of the Korean Inst. of Met. & Mater. Vol. 31, No. 11, pp. 1374-1381, 1993   과학기술학회마을
5 S. M. Son, An Investigation on the Assessment of Anticorrosive Properties of High Performance Coatings by Conducting AC/DC/AC Technique, Pukyong National University, Department of Industrial Chemistry, Graduate School. 2009
6 U. G. Lim, G. C. Jeong, S. Y. Lee, Corrosion and Protection of Mechanical Materials, Hyung Seul Pub., 2006
7 D. A. Jones, Principles and prevention of Corrosion, Prentice Hall, 2004
8 Linda G.S. Gray, Bernard R. Appleman, ICC proceeding, pp. 209-226, 2002
9 K. C. Moon, A Field Study on the Selection of Corrosion-Resistance Materials Used in a High Temperature Corrosion Environment, J. Corros, Sci. Soc. of Korea, Vol. 17, No, 1, pp. 110-117, 1998