尾矿库埋入式传感器不锈钢外壳腐蚀研究
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王淇萱, 吕文生, 杨鹏, 诸利一, 廖文景, 朱远乐
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Corrosion of Stainless Steel Shell of Embedded Sensor in Tailings Pond
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WANG Qixuan, LYU Wensheng, YANG Peng, ZHU Liyi, LIAO Wenjing, ZHU Yuanle
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表3 在3种腐蚀模拟液中浸泡不同时间的316L不锈钢试样阻抗谱拟合结果
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Table 3 Fitting results of EIS of 316L stainless steel samples immersed for different time in three simulated solutions
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| pH | Soaking time | Rs Ω·cm2 | C1 Ω-1·cm-2·s-n | R1 Ω·cm2 | C2 Ω-1·cm-2·s-n | R2 Ω·cm2 |
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| 1.5 | 0 d | 4.83×102 | 1.99×10-4 | 7.40×103 | 3.04×10-4 | 2.29×104 | | 7 d | 5.47×102 | 9.97×10-5 | 1.34×104 | 4.08×10-5 | 2.87×105 | | 15 d | 6.78×102 | 1.23×10-4 | 1.36×104 | 5.41×10-5 | 2.23×105 | | 30 d | 7.16×101 | 9.63×10-5 | 4.26×103 | 4.15×10-5 | 1.83×105 | | 60 d | 8.49×101 | 9.68×10-5 | 5.94×103 | 4.38×10-5 | 3.17×105 | | 120 d | 7.11×101 | 7.32×10-5 | 5.86×103 | 3.44×10-5 | 4.57×105 | | 360 d | 1.01×102 | 8.84×10-5 | 1.16E+04 | 4.55×10-5 | 1.39×105 | | 3 | 0 d | 4.15×101 | 1.17×10-4 | 4.17×103 | 2.39×10-4 | 2.20×104 | | 7 d | 4.02×101 | 6.12×10-5 | 1.75×103 | 4.81×10-5 | 2.25×105 | | 15 d | 4.54×101 | 5.49×10-5 | 2.70×103 | 4.30×10-5 | 1.86×105 | | 30 d | 3.36×101 | 5.26×10-5 | 1.60×103 | 5.31×10-5 | 2.44×105 | | 60 d | 2.12×102 | 6.70×10-5 | 5.83×103 | 4.93×10-5 | 3.46×105 | | 120 d | 3.51×101 | 4.86×10-5 | 2.48×103 | 5.82×10-5 | 1.36×105 | | 360 d | 5.59×101 | 9.49×10-5 | 2.97×103 | 9.19×10-5 | 1.01×105 | | 7.5 | 0 d | 4.15×101 | 2.85×10-5 | 1.07×104 | 2.20×10-5 | 1.65×105 | | 7 d | 4.91×102 | 3.03×10-5 | 4.31×104 | 3.56×10-5 | 1.68×105 | | 15 d | 4.50×101 | 3.04×10-5 | 7.90×103 | 2.21×10-5 | 1.21×105 | | 30 d | 3.64×101 | 2.20×10-5 | 1.48×104 | 1.16×10-5 | 4.98×105 | | 60 d | 4.97×101 | 2.52×10-5 | 1.45×104 | 1.02×10-5 | 7.36×105 | | 120 d | 3.98×101 | 3.08×10-5 | 1.03×104 | 2.33×10-5 | 1.97×105 | | 360 d | 4.88×101 | 3.66×10-5 | 1.19×104 | 5.55×10-5 | 8.95×104 |
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