局部交流阻抗扫描技术对金属电偶腐蚀的研究

中国腐蚀与防护学报

1989, Vol. 9

Issue (2): 137-143

研究报告

本期目录 | 过刊浏览

局部交流阻抗扫描技术对金属电偶腐蚀的研究

张春;许川壁

中国科学院福建物质结构研究所二部;中国科学院福建物质结构研究所二部

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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摘要: 局部交流阻抗扫描技术,原位测定金属/溶液体系中电极表面局部交流阻抗的分布,以研究电极表面局部电化学行为。本文叙述该技术的实验方法及所研制的扫描探头,并建立实验装置。该技术不受溶液电导率的限制,具有快速、准确、灵敏等特点。对腐蚀电偶电极阻抗分布的测试结果表明,在阴极极化条件下,电偶的局部腐蚀得到不同程度的控制,据此可确定电偶腐蚀行为及其最佳保护参数。

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.

收稿日期: 1989-04-25

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引用本文:

张春;许川壁. 局部交流阻抗扫描技术对金属电偶腐蚀的研究[J]. 中国腐蚀与防护学报, 1989, 9(2): 137-143.
. A LOCALIZED A. C. IMPEDANCE SCANNING TECHNIQUE AND STUDY OF METALLIC GALVANIC CORROSION. J Chin Soc Corr Pro, 1989, 9(2): 137-143.

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1989/V9/I2/137

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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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