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| ELECTROCHEMICAL CHARACTERISTICS OF 304 STAINLESS STEEL UNDER A DROPLET OF NaCl |
| LIU Yuanyuan, WANG Wei, WANG Yanhua, WANG Jia |
| College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100 |
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Abstract The wire beam electrode (WBE) was used to study the distributions of the electrochemical parameters of 304 stainless steel under a droplet of NaCl as well as their variations with the corrosion time. It was found that the distributions of the corrosion potential and the galvanic current were inhomogeneous with local anodic and cathodic zones appeared randomly. Moreover, the polarity of local zones changed with the evolution of corrosion process. The corrosion degree and inhomogeneity increased firstly, then decreased afterward with the increase of time. Stainless steel exhibited the highest anodic current density after exposure for 12 hours.
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Received: 29 October 2010
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Corresponding Authors:
WANG Yanhua
E-mail: wyhazz@163.com
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