在不同浓度配比的HCO3-和SO42-混合溶液中,利用循环极化电化学测试方法和SEM,对Cu工作电极的循环极化行为和点蚀表面形貌进行了系统的研究.结果表明,在高电位范围的循环极化实验中,Cu的点蚀行为可分为活性溶解型点蚀和钝化膜破裂型点蚀；随SO42-浓度的升高Cu点蚀的敏感性增大.由于HCO3-与SO42-的协同作用,随HCO3-浓度升高点蚀敏感性呈先增大后减小的规律.在钝化膜破裂型点蚀中,SO42-提高Cu点蚀的诱发能力；HCO3-降低Cu点蚀的诱发能力.2种离子对点蚀自修复能力的影响无明显规律.
参考文献
| [1] | Wang C G,Dong J H,Ke W,Chen N.Acta Metall Sin,2011; 47:354(王长罡,董俊华,柯伟,陈楠.金属学报,2011:47:354) |
| [2] | Cheng Y L,Zhang J Q.Acta Metall Sin,2002; 38:74(程英亮,张鉴清.金属学报,2002; 38:74) |
| [3] | Liu G Q,Zhu Z Y,Ke W.Acta Metall Sin,2001; 37:272(刘国强,朱自勇,柯伟.金属学报,2001:37:272) |
| [4] | Zhou X Y,Ke W,Zang Q S.Acta Metall Sin,1990; 26:110(周向阳,柯伟,臧启山.金属学报,1990,26:110) |
| [5] | Yan Z,Xian A P.Acta Metall Sin,2011; 47:1327(颜忠,冼爱平.金属学报,2011,47:1327) |
| [6] | Cao G L,Li G M,Chen S,Chang W S,Chen X Q.Acta Metall Sin,2011; 47:145(曹国良,李国明,陈珊,常万顺,陈学群.金属学报,2011;47:145) |
| [7] | Darren A L,Mallikarjuna N N.Corros Sci,2010; 52:1927 |
| [8] | Fujii T,Kodama T,Baba H.Corros Sci,1984; 24:901 |
| [9] | Drogowska M,Brossard L,Ménard H.Surf Coat Technol,1988; 34:383 |
| [10] | Drogowska M,Brossard L,Menard H.J Electrochem Soc,1992; 139:39 |
| [11] | Duthil J P,Mankowski G,Giusti A.Corros Sci,1996; 38:1839 |
| [12] | Reda M R,Alhajji J N.Corrosion,1996; 3:232 |
| [13] | Cantor A F,Park J K,Vaiyavatjamai P.J Am Water Works Association,2003; 95(5):112 |
| [14] | Pourbaix M.J Electrochem Soc,1976; 123:C25 |
| [15] | Mankowski G,Duthil J P,Giusti A.Corros Sci,1997; 39:27 |
| [16] | Milosev I,Metikos-Hukovic M,Drogowska M,Menard H,Brassard L.J Electrochem Soc,1992; 139:2409 |
| [17] | Cong H,Michels H T,Scully J R.J Electrochem Soc,2009;156:C16 |
| [18] | Cong H,Scully J R.J Electrochem Soc,2010; 157:C200 |
| [19] | Cong H,Scully J R.J Electrochem Soc,2010; 157:C36 |
| [20] | Christy A G,Lowe A,Otieno-Alego V,Stoll M,Webster R D.J Appl Electrochem,2004; 34:225 |
| [21] | Abd E1 Meguid E A,Awad N K.Corros Sci,2009; 51:1134 |
| [22] | Cao C N.Corrosion Electrochemical Theory. 2nd Ed.,Beijing:Chemical Industry Press,2004:287(曹楚南.腐蚀电化学原理.第二版,北京:化学工业出版社,2004:287) |
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%