使用干湿交替方法模拟酸雨大气腐蚀条件,并利用电化学阻抗谱(EIS)技术对腐蚀过程进行实时监测,对低碳钢Q235在模拟酸雨大气环境下的腐蚀行为进行研究,着重探讨阴极还原反应的演化特征.结果表明,低碳钢Q235的阴极反应为氧的还原反应和锈层(腐蚀产物)的还原反应并行.随着干湿交替循环次数的增加,氧还原反应的活性逐渐减弱,最后几乎完全消失;而锈层还原反应的活性逐渐增强,并取代氧还原反应成为主要的阴极反应.在同一个干湿交替周期内,腐蚀速率随着液膜厚度的减小呈现先增加,然后迅速降低的规律,这是由于液膜厚度对腐蚀反应同时存在2种效果相反的作用所致.
参考文献
| [1] | Ke W.China Corrosion Survey Report.Beijing:Chemical Industry Press,2003:1(柯伟.中国腐蚀调查报告.北京:化学工业出版社,2003:1) |
| [2] | Leygraf C,Graedel T,Translated by Han E H,et al.Atmospheric Corrosion.Beijing:Chemical Industry Press,2005:2(LeygrafC,Graedel T著;韩恩厚等译.大气腐蚀.北京:化学工业出版社,2005:2) |
| [3] | Nishimura T,Katayama H,Noda K,Kodama T.Corrosion,2000;56:934 |
| [4] | Friel J J.Corrosion,1986; 42:422 |
| [5] | Munier G B,Psota L A,Reagor B T,Russiello B,Sinclair J D.J Electrochem Soc,1980; 127:265 |
| [6] | Oesch S.CorrosSci,1996; 38:1357 |
| [7] | (O)zcan M,Dehri (I),Erbil M.Prog Org Coat,2002; 44:279 |
| [8] | Abdel S H,Sa' eh A G,Shoeib M A,Barakat Y.Electrochim Acta,2007; 52:7068 |
| [9] | Peter S,Sudipta R,David S,Stephen M,David P,John L.Chem Eng Sci,2011; 66:5775 |
| [10] | Zhang X Y,Han E H,Li H X.J Chin Soc Corros Prot,2002; 22:316(张学元,韩恩厚,李洪锡.中国腐蚀与防护学报,2002; 22:316) |
| [11] | An B G,Zhang XY,Han E H,Li H X.ActaMetall Sin,2002; 38:755(安百刚,张学元,韩恩厚,李洪锡.金属学报,2002; 38:755) |
| [12] | Scully J C,Translated by Li Q Z.The Fundamentals of Corrosion.Beijing:China Water Power Press,1984:108(JC斯库里著;李启中译.腐蚀原理.北京:水利电力出版社,1984:108) |
| [13] | Evans U R,Taylor C A.Corros Sci,1972; 12:227 |
| [14] | Evans U R,Taylor C A.Corros Sci,1986; 8:447 |
| [15] | Evans U R.Corros Sci,1969; 9:813 |
| [16] | Nishikata A,Ichihara Y,Tsuru T.Corros Sci,1995; 6:897 |
| [17] | Nishikata A,Yarnashita Y,Katayama H,TsuruT.Corros Sci,1995; 12:2059 |
| [18] | Nishikata A,IchiharaY,TsuruT.Electrochim Acta,1996; 7-8:1057 |
| [19] | Nishikata A,Ichihara Y,Hayashi Y,Tsuru T.J Electrochem Soc,1997; 4:1244 |
| [20] | Katayama H,Noda K,Masuda H,Nagasawa M,Itagaki M,Watanabe K.Corros Sci,2005; 47:2599 |
| [21] | Dong J,Dong J H,Han E H,Liu C M,Ke W.Corros Sci Prot Technol,2006; 18:414(董杰,董俊华,韩恩厚,刘春明,柯伟.腐蚀科学与防护技术,2006; 18:414) |
| [22] | Fu X X,Dong J H,Han E H,Ke W.Sensors,2009; 9:10400 |
| [23] | Tomashov N D.Corrosion,1964; 20:7t |
| [24] | Zhang Q C,Wu J S,Zheng W L,Chen J G,Li A B,Wang J J,Yang X F.MaterRev,2000; 14(7):12(张全成,吴建生,郑文龙,陈家光,李爱柏,王建军,杨晓芳.材料导报,2000; 14(7):12) |
| [25] | Cao C N,Zhang J Q.Introduction to Electrochemical Impedance Spectroscopy.Beijing:Science Press,2002:20(曹楚南,张鉴清.电化学阻抗谱导论.北京:科学出版社,2002:20) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%