Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Electrochemical Characteristics of Marine Anti-Corrosive Coating under Shear Flows

전단유동 하에서의 선박용 방식도막의 전기화학 특성

  • Park, Hyun (Advanced Ship Engineering Research Center, Pusan National University) ;
  • Park, Jin-Hwan (Division of Applied Chemical Engineering, Pukyoung National University) ;
  • Ha, Hyo-Min (Hull Design Department, Hyundai Heavy Industries Inc.) ;
  • Chun, Ho-Hwan (Advanced Ship Engineering Research Center, Pusan National University) ;
  • Lee, In-Won (Advanced Ship Engineering Research Center, Pusan National University)
  • 박현 (부산대학교 첨단조선공학연구센터) ;
  • 박진환 (부경대학교 응용화학부) ;
  • 하효민 (현대중공업(주) 선체설계 1부) ;
  • 전호환 (부산대학교 첨단조선공학연구센터) ;
  • 이인원 (부산대학교 첨단조선공학연구센터)
  • Published : 2006.04.01
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Abstract

Analysis has been made of the anti-corrosive property of organic coating under the shear stress of the flow by means of AC impedance method. Marine anti-corrosive painted panels were placed in the water channel with varying flow rate, thereby experiencing varying flow shear stress on the surfaces. The velocities of the salt water were ranged from 1.48 to 5.2 m/s and the coating thickness of from $70{\mu}m\;to\;140{\mu}m$. For all coating thicknesses investigated, the poorer anti-corrosive property and the lower adhesion strength have been found for the higher shear stress. It has been found that the shear stress accelerates the aging of organic marine coatings.

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References

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