乙醇胺对碳钢腐蚀性能的影响
Effect of Ethanolamine on Corrosion Performance of Carbon Steels
摘 要
采用模拟循环回路试验研究了碳钢A106B、A672B60在乙醇胺和氨碱化剂溶液工况下的腐蚀性能，结果表明,A106B、A672B60在乙醇胺水溶液中腐蚀速率与腐蚀产物释放速率低于氨水溶液中;在相同工况条件下，A672B60的腐蚀速率与腐蚀产物释放速率低于A106B。扫描电镜表面形貌结果显示,氨水溶液工况下形成的氧化物表面较疏松多孔。极化曲线、电化学阻抗数据结果表明,A106B、A672B60在乙醇胺水溶液中的反应活性更低，耐蚀性更好。
乙醇胺
氨
腐蚀
电化学
carbon steel
ethanolamine
ammonia
corrosion
electrochemistry
Abstract
The corrosion performance of A106B and A672B60 carbon steels in ammonia water solution and ethanolamine water solution was investigated using simulation circulation loop. The corrosion rate and corrosion product release rate of A106B and A672B60 in ethanolamine water solution were lower than those in ammonia water solution. The corrosion rate and corrosion product release rate of A672B60 were lower than those of A106B in ethanolamine water solution and ammonia water solution. The results of scanning electron microscopy showed that the surface morphology of A106B and A672B60 in ammonia water solution was loose and porous. The results of potentiodynamic polarization and electrochemical impedance spectroscopy displaed that A106B and A672B60 in ethanolamine water solution had lower reactivity and better corrosion resistance.
中图分类号 TG174 DOI 10.11973/fsyfh-201509007
所属栏目 试验研究
基金项目 大型先进压水堆核电站重大专项 (2011ZX06004-017)
收稿日期 2014/9/17
修改稿日期
网络出版日期
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备注宋利君（1980-）,工程师,博士,从事核电站材料与水化学相容性研究。
引用该论文: SONG Li-jun,LI Xin-min,ZHANG Le-fu,LAI Ping. Effect of Ethanolamine on Corrosion Performance of Carbon Steels[J]. Corrosion & Protection, 2015, 36(9): 828
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【3】KING P,JEVEC J. Multivariable assessment of flow-accelerated corrosion and steam generator fouling:Loop tests to investigate the role of dissolved iron in steam generator fouling[R]. Palo Alto,EPRI,2006,TR-1013383.
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【5】ZHANG G A,ZENG L,HUANG H L,et al. A study of flow accelerated corrosion at elbow of carbon steel pipeline by array electrode and computational fluid dynamics simulation[J]. Corrosion Science,2013,77:334-341.
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【7】KAIN V,ROYCHOWDHURY S,MATHEW T,et al. Flow accelerated corrosion and its control measures for the secondary circuit pipelines in Indian nuclear power plants[J]. Journal of Nuclear Materials,2008,383(1/2):86-91.
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【12】HOROWITZ J. Investigation into flow-accelerated corrosion at low temperatures[R]. Palo Alto,EPRI,2006,TR-1013474.
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