Q235钢在不同浓度碳酸氢钠溶液中的有氧腐蚀行为
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薛芳, 刘两雨, 谭龙
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Aerobic Corrosion Process of Q235 Steel in NaHCO3 Solutions
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XUE Fang, LIU Liangyu, TAN Long
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表3 Q235钢在1 mol/L NaHCO3溶液中浸泡不同时间的电化学阻抗谱的拟合结果
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Table 3 Fitting results of EIS data of Q235 steel after immersion in 1 mol/L NaHCO3 solution
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| Immersion time / d | L / H·cm2 | Rs / Ω·cm2 | Ydl / mS·s n ·cm-2 | n | Rct / Ω·cm2 | Yw / mS·s n ·cm-2 |
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| 1 | 1.19×10-6 | 8.504 | 1.05×10-4 | 0.9045 | 2.81×104 | 2.13×10-23 | | 2 | 1.25×10-6 | 7.439 | 8.18×10-5 | 0.9236 | 3.24×104 | 6.66×10-17 | | 3 | 1.25×10-6 | 7.904 | 7.40×10-5 | 0.9295 | 2.99×104 | 4.31×10-19 | | 5 | 1.34×10-6 | 7.652 | 7.18×10-5 | 0.9330 | 2.36×104 | 5.93×10-18 | | 8 | 1.38×10-6 | 5.273 | 7.18×10-5 | 0.9297 | 2.26×104 | 2.50×10-17 | | 11 | 1.68×10-6 | 7.539 | 7.32×10-5 | 0.9287 | 1.72×104 | 1.89×10-17 | | 15 | 1.39×10-6 | 6.137 | 7.56×10-5 | 0.9236 | 1.37×104 | 2.38×10-18 | | 20 | 1.16×10-6 | 4.460 | 8.46×10-5 | 0.9080 | 2.52×104 | 1.31×10-17 | | 25 | 1.40×10-6 | 4.989 | 8.18×10-5 | 0.9167 | 4.50×103 | 2.70×10-20 | | 30 | 1.36×10-6 | 5.033 | 8.84×10-5 | 0.9111 | 2.33×103 | 6.52×10-24 |
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