MICRO-DROPLETS PHENOMENON AND ATMOSPHERIC CORROSION——Ⅱ.Electrochemical characteristics of the micro-droplets phenomenon

J Chin Soc Corr Pro

2006, Vol. 26

Issue (5): 282-285 DOI:

Research Report

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MICRO-DROPLETS PHENOMENON AND ATMOSPHERIC CORROSION——Ⅱ.Electrochemical characteristics of the micro-droplets phenomenon

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广东海洋大学海洋资源与环境监测中心

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Abstract Micro-droplets phenomenon has a close relation with the electrochemical process of atmospheric corrosion.A volcano pattern of poten tial distribution with a potential valley in the center of main-droplet and a po tential annular peak in the area covered with micro-droplets was observed by sca nning Kelvin probe.The electrochemical polarization results proved that the spre ading rate of micro-droplets increased linearly with the polarization current,an d the corrosion current established by the potential difference between the cent ral and peripheral area of main-droplet was the true driving force for the forma tion and spreading of micro-droplets.

Key words: micro-droplets phenomenon potential distribution corrosion current electrochemical polarization

Received: 18 May 2005

ZTFLH:

TG172.3

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;. MICRO-DROPLETS PHENOMENON AND ATMOSPHERIC CORROSION——Ⅱ.Electrochemical characteristics of the micro-droplets phenomenon. J Chin Soc Corr Pro, 2006, 26(5): 282-285 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2006/V26/I5/282

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