采用动电位极化、电化学阻抗和电容测量等方法研究了P110钢在0.5 mol/L Na2CO3+1 mol/L NaHCO3缓冲溶液中生成的钝化膜的电化学性能.结果表明,P110钢在-0.2 V～0.8V发生了明显的钝化现象；随着成膜电位的正移,钝化膜更加致密和稳定,耐蚀性更好;P110钢在该缓冲溶液中生成的钝化膜是n型半导体,随着成膜电位的正移,施主密度更低,对基体的保护作用增强.
参考文献
| [1] | 李立波,左剑恶.温度对X80管线钢钝化膜电化学性能的影响[J].中国腐蚀与防护学报,2009,29(1):40 |
| [2] | Dirz P,Corostiza P,Sanz F,et al.First stage of electrochemical growth of passive film on iron[J].J.Electrochem.Soc.,2001,148(1):B137 |
| [3] | Krishnamurthy B,While R E,Ploehn H J.Simplified point defect model for growth of anodic passive films on iron[J].Electrochim.Acta,2002,47(20):3375 |
| [4] | Carmezim M J,Simoes A M,Montemor M F,et al.Capacitance behavior of passive films on ferric and austenitic stainless steel[J].Corros.Sci.,2005,47(3):581 |
| [5] | Fujimoto S,Tsuchiya H.Semiconductor properties and protective role of passive films of iron base alloys[J].Corros.Sci.,2007,49(1):195 |
| [6] | Hakiki N E,Montemor M F,Ferreira M G,et al.Semiconduting properties of thermally grown oxide films on AISI 304 stainless steel[J].Corros.Sci.,2000,42(4):687 |
| [7] | Rangel C M,Silva T M.Da Cunha Belo M.Semiconductor electrochemistry approach to passivity and stress corrosion cracking susceptibility of stainless steels[J].Electrochim.Acta,2005,50(25-26):5076 |
| [8] | Glass G K,Hassanein A M,Buenfeld N R.Obtaining impedance information on the steel-concrete interface[J].Corrosion,1998,54(11):887 |
| [9] | Hamadou L,Kadri A,Benbrahim N.Characterisation of passive films formed on low carbon steel in borate buffer solution(pH 9.2)by electrochemical impedance spectroscopy[J].Appl.Surf.Sci.,2005,252(5):1510 |
| [10] | Blackwood D J.Influence of the space-charge region on electrochemical impedance measurements on passive oxide films on titanium[J].Electrochim.Acta,2000,46(4):563 |
| [11] | Alves V A,Brett C M A.Characterisation of passive films formed on mild steels in bicarbonate solution by EIS[J].Electrochim.Acta,2002,47(13-14):2081 |
| [12] | Sikora J,Sikora E,Macdonald D D.The electronic structure of the passive film on tungsten[J].Electrochim.Acta,2000,45(12):1875 |
| [13] | Zeng Y W,Luo J L.Electronic band structure of passive film on X70 pipeline steel[J].Electrochimica,2003,48(43):3551 |
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%