咪唑啉季铵盐对A3碳钢在NaNO<sub>2</sub>+NaCl溶液中点蚀行为的影响

赵旭辉; 王芳; 周勇; 唐聿明; 左禹

咪唑啉季铵盐对A3碳钢在NaNO₂+NaCl溶液中点蚀行为的影响

北京化工大学材料科学与工程学院材料电化学过程与技术北京市重点实验室, 北京 100029

基金项目:

国家自然科学基金(51171014

51210001)

详细信息

作者简介:
赵旭辉(1972-),副教授,博士,从事防腐蚀相关工作.

中图分类号: TG174.42
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- 收稿日期: 2014-06-26

Influence of an Imidazoline Quaternary Ammonium Salt on Pitting Corrosion of Carbon Steel in NaNO2₂+NaCl Solution

摘要

摘要: 利用慢速动电位极化法、Mott-Schottky曲线、X射线光电子能谱(XPS)、扫描电化学显微镜(ESTM)等方法研究了咪唑啉季铵盐对A3碳钢在含NO2-的NaCl溶液中的点蚀行为.结果表明,咪唑啉季铵盐能对碳钢在NaNO2+NaCl溶液中钝化起到一定的促进作用,降低维钝电流密度;通过吸附于碳钢表面,降低n型半导体钝化膜层内的施主浓度,改善碳钢表面钝化膜的耐蚀性,尽管对稳态点蚀电位影响不大,但如果添加适量,能较明显地促进稳态蚀孔的再钝化,较适宜的咪唑啉季铵盐添加量约为40 mg/L.
- 碳钢 /
- 点蚀 /
- 咪唑啉季铵盐 /
- 耐蚀性
Abstract: The effect of an imidazoline quaternary ammonium salt on pitting corrosion of Q235 carbon steel in a NaNO2 + NaCl solution was studied by polarization curves,Mott-Schottky curves,XPS and ESTM methods.The results showed that the imidazoline quaternary ammonium salt could accelerate the formation of the passive film on carbon steel surface in a NaNO2+NaCl solution and decrease the passive current;the imidazoline quaternary ammonium salt absorbed on carbon steel surface could also decrease the donor concentration in passive films and improve the film′s corrosion resistance;though imidazoline quaternary ammonium salt had no obvious influence on pitting potential,it was helpful for repassivation of stable pit with a proper quantity (e.g.40 mg/L).
- carbon steel /
- pitting corrosion /
- imidazoline quaternary ammonium salt /
- corrosion resistance

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参考文献(13)

[1]	邢静.合成咪唑啉缓蚀剂在油田水中的模拟试验[J].腐蚀与防护,2009,30(5):322-324．
[2]	樊国栋,葛君,柴玲玲.咪唑啉季铵盐的合成及性能评价[J].陕西科技大学学报,2010,28(5):21-24．
[3]	孟邱,张宇,闫慧.一种咪唑啉季铵盐的合成[J].应用化工,2011,40(8):1416-1417．
[4]	赵景茂,尚洪帅,王帅东.咪唑啉季铵盐的合成及其在CO2腐蚀环境中的缓蚀性能[J].北京化工大学学报:自然科学版,2012,39(5):37-41.
[5]	赵景茂,陈国浩.咪唑啉与硫脲在CO2腐蚀体系中的缓蚀协同作用机理[J].中国腐蚀与防护学报,2013,33(3):226-230.
[6]	ZHAO J G,CHEN G B.The synergistic inhibition effect of oleic-based imidazoline and sodium benzoate on mild steel corrosion in a CO2-saturated brine solution[J].Electrochimica Acta,2012,69:247-255.
[7]	陈国浩.二氧化碳腐蚀体系缓蚀剂的缓蚀机理及缓蚀协同效应研究[D].北京:北京化工大学博士学位论文,2012.
[8]	LI W S,LUO J L.Electric properties and pitting susceptibility of passive films formed on iron in chromate solution[J].Electrochemistry Communications,1999(1):349-353.
[9]	林玉华,杜荣归,胡融刚,等.不锈钢钝化膜耐蚀性与半导体特性的关联研究[J].物理化学学报,2005,21(7):740-745.
[10]	张云莲,史美伦,陈志源.钢筋钝化膜半导体性能的Mott-Schottky研究[J].机械工程材料,2006,30(7):7-10.
[11]	MACDONALD D D.The point defect model for the passive state[J].Journal of the Electrochemical Society,1992,139:3434-3449.
[12]	OLIVARES-XOMETL O,LIKHANOVA N V,Dominguez-Aguilar M A,et al.Surface analysis of inhibitor films formed by imidazolines and amides on mild steel in an acidic environment[J].Applied Surface Science,2006,252(6):2139-2152.
[13]	赵景茂,刘鹤霞,狄伟,等.咪唑啉衍生物与硫脲之间的缓蚀协同效应研究[J].电化学,2004,10(4):440-445.

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咪唑啉季铵盐对A3碳钢在NaNO2+NaCl溶液中点蚀行为的影响

作者简介: 赵旭辉(1972-),副教授,博士,从事防腐蚀相关工作.

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Influence of an Imidazoline Quaternary Ammonium Salt on Pitting Corrosion of Carbon Steel in NaNO22+NaCl Solution

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目录

咪唑啉季铵盐对A3碳钢在NaNO₂+NaCl溶液中点蚀行为的影响

作者简介:
赵旭辉(1972-),副教授,博士,从事防腐蚀相关工作.

Influence of an Imidazoline Quaternary Ammonium Salt on Pitting Corrosion of Carbon Steel in NaNO2₂+NaCl Solution