碳钢交流电腐蚀机理的探讨

中国腐蚀与防护学报

2011, Vol. 31

Issue (4): 270-274

研究报告

本期目录 | 过刊浏览

碳钢交流电腐蚀机理的探讨

翁永基¹,王宁^1,2

1. 中国石油大学（北京）理学院北京 102200
2. 中国石油化工集团公司洛阳石油化工工程公司洛阳 471003

CARBON STEEL CORROSION INDUCED BY ALTERNATING CURRENT

WENG Yongji¹, WANG Ning^1,2

1. College of Science, China University of Petroleum, Beijing 102200
2. Luoyang Petrochemical Engineering Corporation of SINOPEC, Luoyang 471003

全文: PDF(715 KB)

摘要: 开展了碳钢交流电腐蚀失重试验及交流干扰下极化曲线测量，结果表明，在研究的交流电流密度0~250 A/m²范围内，碳钢交流电腐蚀速度与干扰强度符合幂函数方程。交流干扰对极化曲线的影响表现为降低了表面反应电阻R_p，及降低阴、阳极Tafel斜率。由此解释了交流电腐蚀特征与规律，并探讨了交流电腐蚀机理。

关键词 ：碳钢, 交流电腐蚀, 失重, 幂函数, 极化, Tafel斜率

Abstract：Mass loss tests were performed for carbon steel corrosion induced by alternating current，as well as the measurement of polarization curves under AC interference. The results show that the AC corrosion rate of carbon steel follows a power function with the AC interference intensity within AC current density 0~250 A/m², which concerned in this paper. The effect of AC interference on the polarization curves (1) decreasing the surface reaction resistance, and (2) decreasing both of the anodic and cathodic Tafel slopes. Thereby, the AC corrosion characteristics and rules were well explained and the AC corrosion mechanism was also discussed.

Key words： carbon steel AC induced corrosion mass loss power function polarization Tafel slope

收稿日期: 2010-05-28

ZTFLH:

TG171

通讯作者: 翁永基 E-mail: weng_yj@139.com

Corresponding author: WENG Yongji E-mail: weng_yj@139.com

作者简介: 翁永基，男，1945年生，教授，研究方向为石油、石化工业腐蚀与防护

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引用本文:

翁永基,王宁. 碳钢交流电腐蚀机理的探讨[J]. 中国腐蚀与防护学报, 2011, 31(4): 270-274.
WENG Yong-Ji. CARBON STEEL CORROSION INDUCED BY ALTERNATING CURRENT. J Chin Soc Corr Pro, 2011, 31(4): 270-274.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2011/V31/I4/270

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(陈敬龙, 翁永基, 李英义. 检查片与埋地管道间电偶电流的测量 [J]. 管道技术与设备, 2009(5): 19-22)

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