通过Mott-Schottky图、Nyquist图及阳极极化曲线测定研究了硼酸-硼砂缓冲溶液中硫离子对不锈钢钝化膜耐蚀性能的影响,结果表明:随浸泡时间增加不锈钢电极阻抗值增大,但硫离子加入后阻抗值快速降低;阳极极化曲线测定显示硫离子使不锈钢钝态电流增大;硫离子浓度的增加使不锈钢电极的Mott-Schottky图中体现p-型半导体(铬氧化物)性质的直线段发生较大变化,说明硫离子影响了钝化膜中铬氧化物的性质,使其耐蚀性能降低.
参考文献
| [1] | 朱雁伯,王溪蓉,张礼文,等.排水系统中硫化氢的危害及预防措施[J].中国给水排水,2000,16(9):45. |
| [2] | B C Syrett, D D Macdonald, and S S Wing. Corrosion of copper -nickel alloys in sea water polluted with sulfide and sulfide oxidation products[J]. Corrosion, 1979, 35(9) :409. |
| [3] | E M A Martini, I L Muller. Characterization of the film formed in iron in borate solution by electrochemical impedance spectroscopy[J]. Corrosion Science, 2000, 42(3) :443. |
| [4] | P Marcus. Surface science approach of corrosion phenomena [J]. Electrochim. Acta, 1998, 43(1/2): 109. |
| [5] | S R Morrison. Electrochemistry at semiconductors and oxidized metal electrodes[M]. Plenum Press, New York, 1980. |
| [6] | N E Hakiki, M Da Cunha Belo, A M P Simoes, et al. Semiconducting properties of passive films formed on stainless steels [J]. J. Electrochem. Soc., 1998, 145 ( 11 ): 3821. |
| [7] | M F Montemor, M G S Ferreira, N E Hakiki, et al. Chemical conposition and electronic structure of the oxide films formed on 316L stainless steel and nickel based alloys in high temperature aqueous environments [J ]. Corrosion Science, 2000, 42:1635. |
| [8] | M Bojinov, I Betova, G Fabricius, et al. The stability of the passive state of iron - chromium alloys in sulphuric acid solution[J]. Corros. Sci., 1999, 41:1557. |
| [9] | B Lovrecek and J Sefaja. The effect of thin anodic films on metal dissolution[J]. Electrochim. Acta, 1972, 17:1151. |
| [10] | M H Dean and U Stimming. Capacity of semiconductor electrods with multiple bluk electronic states [J]. J. Electroanal.Chem., 1987, 228:135. |
| [11] | J H Kennedy and K W Frese Jr. Flatband potentials and donor densities of polycrystalline α - Fe2O3 determined from MottSchottky plots[ J ]. J. Electrochem. Soc., 1978, 125(5): 723. |
| [12] | P Marcus, and E Protopopoff. Potential - pH diagreams for sulfur and oxygen adsorbed on chromium in water [J]. J. Electrochem. Soc., 1997, 144(5): 1586. |
| [13] | P Marcus, and E Protopopoff. Potential - pH diagrams for adsorbed species application to sulfur adsorbed on iron in water at 25℃ and 30℃ [J]. J. Electrochem. Soc., 1990, 137(9) :2709. |
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