Studies on Estimating Methods of Polarization Performance for Coated Steel in Seawater
2010; Trans Tech Publications; Volume: 654-656; Linguagem: Inglês
10.4028/www.scientific.net/msf.654-656.2418
ISSN1662-9760
AutoresYu Hong Qi, Zhan Ping Zhang, Mei Miao, Xia Zhen Zhang,
Tópico(s)Metal and Thin Film Mechanics
ResumoThe polarization curves and electrochemical impedance spectroscopy of coated steel after scratching cross-lines or cathodic polarization using COLT system connected to electrochemical workstation IM6ex in seawater are investigated and from the measured polarization data, potential distribution on hull surface under waterline are predicted using Beasy CP software. It is shown that an more pricise method for gaining polarization data of the coated steel in seawater is the electrochemical measurement carried out by COLT system and the method of scratching cross-lines or cathodic polarization for coating damage is simple and convenient for estimating the polarization data of a new coated hull that is closely related to the coating properties.
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