带锈层碳钢在3% NaCl溶液中的腐蚀电化学行为
Electrochemical Corrosion Behavior of Carbon Steel Covered by Rust Layer in 3% NaCl Solution
摘 要
采用失重法、红外光谱、电化学阻抗谱等方法研究了碳钢在3% NaCl溶液中的腐蚀行为。结果表明,锈层会显著影响碳钢的腐蚀过程。锈层由γ-FeOOH及Fe3O4构成; 其中γ-FeOOH易被还原而起氧化剂作用,Fe3O4层起大阴极作用,氧可直接在锈层表面还原。锈层不仅不能阻碍碳钢腐蚀过程,而且将加速其腐蚀,最终碳钢腐蚀速率由溶液中的氧极限扩散速率所决定。
3% NaCl溶液
锈层
腐蚀行为
carbon steel
3% NaCl solution
rust layer
corrosion behavior
Abstract
The corrosion behavior of carbon steel in 3% NaCl solution was studied by weight-loss method, infrared spectroscopy (IR) and electrochemical impedance spectroscopy(EIS). The results indicate that the corrosion process of carbon steel is affected by rust layer significantly. The rust layer is composed of γ-FeOOH and Fe3O4. γ-FeOOH can be reduced easily and work as oxidant. The Fe3O4 layer provides a large cathodic area and oxygen can be reduced on the surface of rust layer. As a result, the rust layer can not prevent the corrosion of carbon steel and even can accelerate the corrosion process. The corrosion rate of carbon steel is determined by the limiting diffusion rate of oxygen.
中图分类号 TG174 O646
所属栏目 试验研究
基金项目
收稿日期 2012/9/23
修改稿日期
网络出版日期
作者单位点击查看
备注胡家元,教授,
引用该论文: WU Shan-hong,XIAO Li,YIN Li,HU Jia-yuan. Electrochemical Corrosion Behavior of Carbon Steel Covered by Rust Layer in 3% NaCl Solution[J]. Corrosion & Protection, 2013, 34(9): 811
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】李云菊,张胜涛,李伟华,等. 几种缓蚀剂在3.5% NaCl溶液中对A3钢的缓蚀性能[J]. 腐蚀与防护,2010,31(1):34-36.
【2】刘宝玉,刘峥,王国瑞. 海水缓蚀剂的研究现状与展望[J]. 材料保护,2010,43(8):51-56.
【3】邹妍,王佳,郑莹莹. 锈层下碳钢的腐蚀电化学行为特征[J]. 物理化学学报,2010,26(9):2361-2368.
【4】万晔,严川伟,曹楚南. 可溶盐沉积对碳钢大气腐蚀的影响[J]. 物理化学学报,2004,20(6):659-663.
【5】邹妍,郑莹莹,王燕华,等. 低碳钢在海水中的阴极电化学行为[J]. 金属学报,2010,46(1):123-128.
【6】García K E,Morales A L,Barrero C A,et al. New contributions to the understanding of rust layer formation in steels exposed to a total immersion test[J]. Corrosion Science,2006,48:2813-2830.
【7】Bai Z Q,Chen C F,Lu M X,et al. Analysis of EIS characteristics of CO2 corrosion of well tube steels with corrosion scales[J]. Apply Surface Science,2006,252:7578-7584.
【8】Bousselmi L,Fiaud C,Tribollet B,et al. Impedance spectroscopic study of a steel electrode in condition of scaling and corrosion interphase model[J]. Electrochimca Acta,1999,44:4357-4363.
【9】曾潮流,王文,吴维芠. 溶融盐热腐蚀的电化学阻抗模型[J]. 金属学报,1999,35(7):751-754.
【10】Melchers R E. Mathematical modeling of the diffusion controlled phase in marine immersion corrosion of mild steel[J]. Corrosion Science,2003,45:923-940.
【11】胡家元,曹顺安,谢建丽. 锈层对海水淡化一级反渗透产水中碳钢腐蚀行为的影响[J]. 物理化学学报,2012,28(5):1153-1162.
【12】孙敏,肖葵,董超芳,等. 带腐蚀产物超高强度钢的电化学行为[J]. 金属学报,2011,47(4):442-448.
【13】Hoerlé S,Mazaudier F,Dillmann P,et al. Advances in understanding atmospheric corrosion of iron.Ⅱ.Mechanistic modeling of wet-dry cycles[J]. Corrosion Science,2004,46:1431-1465.
【14】Evans U R. Electrochemical mechanism of atmospheric rusting[J]. Nature,1965,206:980-982.
【2】刘宝玉,刘峥,王国瑞. 海水缓蚀剂的研究现状与展望[J]. 材料保护,2010,43(8):51-56.
【3】邹妍,王佳,郑莹莹. 锈层下碳钢的腐蚀电化学行为特征[J]. 物理化学学报,2010,26(9):2361-2368.
【4】万晔,严川伟,曹楚南. 可溶盐沉积对碳钢大气腐蚀的影响[J]. 物理化学学报,2004,20(6):659-663.
【5】邹妍,郑莹莹,王燕华,等. 低碳钢在海水中的阴极电化学行为[J]. 金属学报,2010,46(1):123-128.
【6】García K E,Morales A L,Barrero C A,et al. New contributions to the understanding of rust layer formation in steels exposed to a total immersion test[J]. Corrosion Science,2006,48:2813-2830.
【7】Bai Z Q,Chen C F,Lu M X,et al. Analysis of EIS characteristics of CO2 corrosion of well tube steels with corrosion scales[J]. Apply Surface Science,2006,252:7578-7584.
【8】Bousselmi L,Fiaud C,Tribollet B,et al. Impedance spectroscopic study of a steel electrode in condition of scaling and corrosion interphase model[J]. Electrochimca Acta,1999,44:4357-4363.
【9】曾潮流,王文,吴维芠. 溶融盐热腐蚀的电化学阻抗模型[J]. 金属学报,1999,35(7):751-754.
【10】Melchers R E. Mathematical modeling of the diffusion controlled phase in marine immersion corrosion of mild steel[J]. Corrosion Science,2003,45:923-940.
【11】胡家元,曹顺安,谢建丽. 锈层对海水淡化一级反渗透产水中碳钢腐蚀行为的影响[J]. 物理化学学报,2012,28(5):1153-1162.
【12】孙敏,肖葵,董超芳,等. 带腐蚀产物超高强度钢的电化学行为[J]. 金属学报,2011,47(4):442-448.
【13】Hoerlé S,Mazaudier F,Dillmann P,et al. Advances in understanding atmospheric corrosion of iron.Ⅱ.Mechanistic modeling of wet-dry cycles[J]. Corrosion Science,2004,46:1431-1465.
【14】Evans U R. Electrochemical mechanism of atmospheric rusting[J]. Nature,1965,206:980-982.
相关信息
