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| A LOCALIZED A. C. IMPEDANCE SCANNING TECHNIQUE AND STUDY OF METALLIC GALVANIC CORROSION |
| Zhang Chun and Xu Chuanbi(Xiamen Corrosion and Protection Branch; Fujian Institute of Research on the Structure of Matter; Academia Sinica) |
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Abstract The localized a. c. impedance scanning technique can be used to detect in-situ distributions of local a. c. impedance on electrode surface and to study electrochemical behavior of the small area under investigation. A scanning probe which scanned over electrode surface was designed. Measuring procedure was not influenced by solution conductivity The impedante distributions of metal galvanic couple surface was measured. It was shown that, under cathodic protection, localized corrosion rate decreased to various extent. The optimum potential of cathodic protection could be determined.
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Received: 25 April 1989
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Cite this article:
Zhang Chun and Xu Chuanbi(Xiamen Corrosion and Protection Branch; Fujian Institute of Research on the Structure of Matter; Academia Sinica). A LOCALIZED A. C. IMPEDANCE SCANNING TECHNIQUE AND STUDY OF METALLIC GALVANIC CORROSION. J Chin Soc Corr Pro, 1989, 9(2): 137-143.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1989/V9/I2/137
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[1] Isaacs, H. S., Kendig, M. W., Corrosion, 36(6) , 269(1980)
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[3] 田昭武、林昌健、卓向东、中国腐蚀与防护学报,2(4) ,1(1982)
[4] Isaacs, H, S.; Vyas, B., Electrochemical Corrosion, Testing ASTM STP 727, F.Mansfeld and U. Bertocci, Eds. ASTM PP. 3-33(1981)
[5] 蔡长寿、许世力、石小燕、许川壁,WS-Ⅱ型微区电位扫描仪的研制(未发表),(1984) |
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