전단유동 하에서의 선박용 방식도막의 전기화학 특성
Electrochemical Characteristics of Marine Anti-Corrosive Coating under Shear Flows
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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 70m to 140m. 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.
참고문헌 (4)
- "교류 임피던스법에 의한 유기도막의 방식성 평가", 41(1), pp.88~93 (2004)
- "흡·탈수 반복환경에서의 유기도막의 방식성 평가", 18(1), pp.75~79 (2004)
- "금속부식공학", pp.221~233 (2000), 연경문화사
- "EISMeasurement for Corrosion Monitoring under Multiphase Flow Conditions", 44, pp.4459~4463 (1999)