采用EIS、SEM及XRD等方法研究了稀土钢、碳素钢在 0.3 mol/L NaCl溶液中的腐蚀行为. 结果 表明, 稀土能够提高碳素钢的耐蚀性能, 与碳素钢相比, 稀土钢在溶液中生成的锈层较为致密, 锈层中具有 保护性作用的α-FeOOH含量较高, 而活性的γ--FeOOH和β--FeOOH含量较少. 分析了 交流阻抗等效电路中电化学参数随时间的演变规律, 对稀土提高碳素钢的耐蚀性机理进行了讨论.
The corrosion process of RE steel and carbon steel in 0.3 mol/L NaCl was investigated by electrochemistry impedance spectroscopy test, SEM and X diffraction analysis. The results showed RE could improve the corrosion resistance of carbon steel; compared with carbon steel, the rust layer of RE steel generated in the solution was more compact, the content of α-FeOOH in rust layer with protective effect was higher, the content of activated γ-FeOOH and β-FeOOH was little. The development process of electrochemistry parameter in the equivalent circuit was analysed, the theory of RE improving the corrosion resistance of steel was discussed.
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| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] |
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