目的 探索锈层对碳钢腐蚀的影响过程.方法 通过失重法、表面分析、电化学测试等方法,研究碳钢在稀NaCl溶液中的腐蚀行为.结果 在稀NaCl溶液中,初始产物γ-FeOOH表现为氧化剂,易还原成Fe3 O4.金属表面将迅速形成黄色薄外层(γ-FeOOH层)+黑色厚内层(Fe3O4层)的双层锈层.外锈层因γ-FeOOH的还原反应而加速阴极过程;内锈层起大阴极的作用,溶解氧可以直接在其表面被还原.结论 锈层将显著加速碳钢的腐蚀,最终腐蚀速率将由溶液中的氧极限扩散速率决定.防腐措施应能抑制锈层的腐蚀促进作用.
参考文献
| [1] | Jiayuan Hu;Shunan Cao;Li Yin;Qinqin Liang;Jianli Xie .Study on the corrosion behavior of Q235A carbon steel in RO product water of seawater[J].Anti-Corrosion Methods and Materials,2012(6):305-310. |
| [2] | 尹力,曹顺安,吴善宏,肖丽.Q235钢在海水及海水淡化一级RO产水中的腐蚀特性研究[J].表面技术,2012(03):43-46. |
| [3] | 王晓玲,徐克,苏立永,张乾.蒸馏海水淡化产品水对铸铁材质腐蚀研究[J].海洋技术,2011(01):99-102. |
| [4] | A.U.Malik;I.N.Andijani;M.Mobin .Corrosion behavior of materials in RO water containing 250-350 ppm chloride[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2006(1/3):149-159. |
| [5] | Bart Van der Bruggen;Carlo Vandecasteele .Distillation vs. membrane filtration: overview of process evolutions in seawater desalination[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2002(3):207-218. |
| [6] | LI Z F;GAN F X;MAO X H .A Study on Cathodic Protection Against Crevice Corrosion in Dilute NaCl Solutions[J].Corrosion Science,2002,44:689-701. |
| [7] | 郑雷刚,杨怀玉.饱和NaCl溶液浸泡下混凝土试块中有机阻锈剂对钢筋腐蚀行为的影响[J].物理化学学报,2010(09):2354-2360. |
| [8] | 徐秀清,魏丹,俞莹滢,白真权,冯耀荣,马秋荣,赵文轸.Cl-浓度对含盐污水中10#碳钢腐蚀行为的影响[J].表面技术,2013(04):59-61,82. |
| [9] | T. Kamimura;S. Hara;H. Miyuki;M. Yamashita;H. Uchida .Composition and protective ability of rust layer formed on weathering steel exposed to various environments[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2006(9):2799-2812. |
| [10] | 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(05):1153-1162. |
| [11] | MELCHERS R E .Mathematical Modeling of the Diffusion Controlled Phase in Marine Immersion Corrosion of Mild Steel[J].Corrosion Science,2003,45:923-940. |
| [12] | 孙敏,肖葵,董超芳,李晓刚,钟平.带腐蚀产物超高强度钢的电化学行为[J].金属学报,2011(04):442-448. |
| [13] | HOERL(E) S;MAZAUDIER F;DILLMANN Ph et al.Advances in Understanding Atmospheric Corrosion of Iron Ⅱ Mechanistic Modeling of Wet-Dry Cycles[J].Corrosion Science,2004,46:1431-1465. |
| [14] | 柳鑫华,孙彩云,王庆辉,韩婕.用表面分析的方法研究复合缓蚀剂在天然海水中的缓蚀阻垢机理[J].表面技术,2013(03):19-22. |
| [15] | EVANS U R .Electrochemical Mechanism of Atmospheric Rusting[J].NATURE,1965,206:980-982. |
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