醋酸对黄铜管腐蚀行为影响的模拟研究

廖强强; 李海刚; 陈艳华

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上海电力大学学报:2005,21(1):69-72

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醋酸对黄铜管腐蚀行为影响的模拟研究

廖强强, 李海刚, 陈艳华

(上海电力学院能源与环境工程学院, 上海, 200090)

Virtual Study of the Influence of Acetic Acid on Corrosion Behavior of Brass Tube

LIAO Qiang-qiang, LI Hai-gang, CHEN Yan-hua

(Dept. of Thermal Power & Environmental Engineering, Shanghai University of Electric Power, Shanghai 200090, China)

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投稿时间：2004-04-14

中文摘要: 微生物的代谢产物醋酸,对黄铜管的耐蚀性能影响较大.通过对黄铜管在不同醋酸浓度的循环水中的电化学阻抗谱(EIS)的测定和拟合,确定了合适的模型.根据此模型循环,在循环水中加入少量醋酸,可使膜电阻R₁和电荷转移电阻R₂的值大大减小,而膜电容C₁和双电层电容C₂的值均有增大,这表明黄铜管的耐蚀性能大为降低.

中文关键词: 微生物腐蚀黄铜管电化学阻抗谱

Abstract:Acetic acid as a metabolite of microbe has a great influence on the corrosion resistance of the brass tube. The electrochemical behavior of the brass tube in recycling water containing acetic acid at different concentrations is studied by electrochemical impedance spectroscopy, and an appropriate model is established through fitting. It is shown that the film resistance R₁ and charge transfer resistance R₂ greatly decrease while the film capacitance C₁ and double-layer capacitance C₂ both increase in the presence of acetic acid. As a result, the corrosion resistance of the brass tube greatly decreases.

keywords: microbiologically influenced corrosion brass tube electrochemical impedance spectroscopy

文章编号：20050117 中图分类号： 文献标志码：

基金项目:上海市教委青年发展基金(020Q05);上海市教委重点培育学科基金资助.

作者	单位
廖强强	上海电力学院能源与环境工程学院, 上海, 200090
李海刚	上海电力学院能源与环境工程学院, 上海, 200090
陈艳华	上海电力学院能源与环境工程学院, 上海, 200090

Author Name	Affiliation
LIAO Qiang-qiang	Dept. of Thermal Power & Environmental Engineering, Shanghai University of Electric Power, Shanghai 200090, China
LI Hai-gang	Dept. of Thermal Power & Environmental Engineering, Shanghai University of Electric Power, Shanghai 200090, China
CHEN Yan-hua	Dept. of Thermal Power & Environmental Engineering, Shanghai University of Electric Power, Shanghai 200090, China

引用文本：
廖强强,李海刚,陈艳华.醋酸对黄铜管腐蚀行为影响的模拟研究[J].上海电力大学学报,2005,21(1):69-72.
LIAO Qiang-qiang,LI Hai-gang,CHEN Yan-hua.Virtual Study of the Influence of Acetic Acid on Corrosion Behavior of Brass Tube[J].Journal of Shanghai University of Electric Power,2005,21(1):69-72.