用动电位极化法研究了CO3 2-、NO2-、SO4 2-、MoO4 2-和PO4 3-5种阴离子对A3钢在0.5 mol/L NaHCO3+0.05mol/L NaCl溶液中的亚稳态孔蚀行为.5种离子使A3钢的孔蚀电位Eb和亚稳孔蚀出现电位Em均不同程度地正移,说明这5种离子既抑制稳定孔蚀的发生,也抑制亚稳孔蚀的发生.在5种离子中,NO2-抑制亚稳孔蚀形核的能力最强.5种离子对稳定孔蚀与亚稳孔蚀形核与生长有大致相同的作用.
参考文献
| [1] | Leckie H P, Uhlig H H. Environmental factors affecting the critic al potential for pitting in 18- 8 stainless steel [J ]. J Electrochem Soc, 1966,113:1262. |
| [2] | Pistorius PC, Burstein G T. Growth of corrosion pits on stainless steel in chloride solution containing dilute sulphate[J]. Corros. Sci., 1992, 33:1885. |
| [3] | Refaey S A M, Abd El-Rehim S S, Taha F, et al. Inhibition of localized corrosion of mild steel by PO4 3-, CrO24-, MoO4 2-, and NO2- anions[J]. Applied Surface Science, 2000,158:190. |
| [4] | 姜涛,左禹,熊金平.含S阴离子对低A3钢孔蚀的影响[J].腐蚀科学与防护技术,2001,13(5):249. |
| [5] | 赵景茂,左禹,熊金平,等.在NaHCO3-NaCl体系中阴离子对A3钢点蚀的抑制作用[J].腐蚀科学与防护技术,2001,13(2),77. |
| [6] | Fujioka E, Nishihara H, Aramaki K. The inhibition of pit nucleation and growth on the passive surface of iron in a borate buffer solution containing Cl- by oxidizing inhibitors[J]. Corros. Sci.,1996, 38:1915. |
| [7] | Cheng Y F, Wilmott M, Luo J L. The role of chloride ions in pitting of carbon steel studied by the statistical anslysis of electrochemical noise[J]. Applied Surface Science, 1999, 152:161. |
| [8] | Virtanen S, Surber B, Nylund P. Influence of MoO42- anion in the electrolyte on passivity breakdown of iron[J]. Corros. Sci.,2001,43:1165. |
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%