方波脉冲电流阴极保护机理研究Ⅰ 阴极电位波形特征

中国腐蚀与防护学报

2002, Vol. 22

Issue (5): 295-299

研究报告

本期目录 | 过刊浏览

方波脉冲电流阴极保护机理研究Ⅰ 阴极电位波形特征

邱于兵;郭稚弧;林汉同

华中科技大学

MECHANISM OF THE CATHODIC PROTECTIONBY SQUARE WAVE PULSED CURRENTSⅠ:Characteristics of the Cathodic Potential Waveforms

Yubing Qiu;Zhihu Guo;Hantong Lin

华中科技大学

全文: PDF(156 KB)

摘要: 在3%NaCl、006%NaCl及自来水3种介质中，研究了Q235钢在方波脉冲电流作用下阴极电位响应波〖CM(49〗形的特征.提出可以直接采用阴极电位波形的最下沿电位值作为阴极的极化电位，并对响应波形的特征进行了分析.

关键词 ：方波, 脉冲电流, 电位波形, 波形特征, 阴极保护

Abstract：The characteristics of the cathodic potential wavef orms of the Q235 steel electrodes polarized by square wave pulsed currents (SWPC s) were studied in 3%NaCl,0.06%NaCl and tap water.The results show that polarize d by SWPCs the cathodic potential waveforms have the basic features of those in RC parallel circuits,and move negatively with increase of the polarizing time bu t their shapes do not change obviously.The solution resistance may create great influence on the measured potential waveforms so that it must be compensated to obtain the real ones.The real amplitudes of the potential waveforms are very sma ll (<10 mV) and decrease with increasing frequencies of SWPCs.So it was pointed out that the bottommost potential of the cathodic potential waveform could be us ed as the cathodic polarization potential of the electrode.The characteristics o f the cathodic potential waveforms were analyzed in the paper.

Key words： square wave pulsed current potential waveform wavef orm characteristics cathodic protection mechanis

收稿日期: 2001-05-19

ZTFLH:

TG174.41

通讯作者: 邱于兵

Corresponding author: Yubing Qiu

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引用本文:

邱于兵; 郭稚弧; 林汉同 . 方波脉冲电流阴极保护机理研究Ⅰ 阴极电位波形特征[J]. 中国腐蚀与防护学报, 2002, 22(5): 295-299 .
Yubing Qiu, Zhihu Guo, Hantong Lin. MECHANISM OF THE CATHODIC PROTECTIONBY SQUARE WAVE PULSED CURRENTSⅠ:Characteristics of the Cathodic Potential Waveforms. J Chin Soc Corr Pro, 2002, 22(5): 295-299 .

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2002/V22/I5/295

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