Cu含量对管线钢耐微生物腐蚀性能的影响
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曾云鹏, 严伟, 史显波, 闫茂成, 单以银, 杨柯
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Effect of Copper Content on the MIC Resistance in Pipeline Steel
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ZENG Yunpeng, YAN Wei, SHI Xianbo, YAN Maocheng, SHAN Yiyin, YANG Ke
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表3 接菌NS4溶液中的EIS拟合结果
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Table 3 Fitting results of EIS in SRB inoculated NS4 solution
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| Steel | Time d | Rs Ω·cm2 | Qf | Rf Ω·cm2 | Qdl | Rct Ω·cm2 | |
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| Yf / S·s n ·cm-2 | nf | Ydl / (S·s n ·cm-2) | ndl | |
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| SRB-1# | 1 | 216.4 | | | | 5.25 × 10-3 | 0.9102 | 6.627 × 104 | 4.71 × 10-4 | | 2 | 201.8 | | | | 8.80 × 10-4 | 0.9100 | 5.509 × 104 | 8.09 × 10-4 | | 4 | 180.2 | 7.73 × 10-3 | 0.4713 | 47.9 | 3.05 × 10-3 | 0.9586 | 3.897 × 104 | 3.79 × 10-4 | | 7 | 172.5 | 1.07 × 10-2 | 0.4280 | 46.5 | 4.51 × 10-3 | 0.9582 | 1.451 × 105 | 2.43 × 10-5 | | 14 | 153.0 | 7.92 × 10-5 | 0.4683 | 25.5 | 2.38 × 10-3 | 0.9599 | 4.578 × 105 | 9.57 × 10-4 | | SRB-2# | 1 | 223.6 | | | | 5.50 × 10-4 | 0.9134 | 5.686 × 104 | 5.74 × 10-4 | | 2 | 205.9 | | | | 6.30 × 10-4 | 0.9107 | 5.136 × 104 | 1.34 × 10-3 | | 4 | 184.0 | 5.25 × 10-3 | 0.5171 | 62.0 | 6.83 × 10-5 | 0.8613 | 3.695 × 104 | 7.08 × 10-4 | | 7 | 166.1 | 9.96 × 10-3 | 0.4871 | 64.3 | 4.91 × 10-3 | 0.9679 | 7.404 × 104 | 1.95 × 10-5 | | 14 | 150.5 | 9.37 × 10-2 | 0.4326 | 68.4 | 2.88 × 10-3 | 0.9383 | 3.659 × 105 | 6.33 × 10-4 | | SRB-3# | 1 | 336.7 | | | | 1.202 × 10-4 | 0.8096 | 5.097 × 104 | 5.74 × 10-4 | | 2 | 311.7 | | | | 7.821 × 10-5 | 0.8763 | 4.003 × 104 | 1.34 × 10-3 | | 4 | 184.3 | 5.62 × 10-3 | 0.5385 | 46.8 | 3.358 × 10-3 | 0.9654 | 3.486 × 104 | 3.32 × 10-5 | | 7 | 169.9 | 8.93 × 10-3 | 0.4411 | 57.3 | 5.402 × 10-3 | 0.9658 | 4.555 × 104 | 1.35 × 10-5 | | 14 | 154.8 | 7.00 × 10-5 | 0.4417 | 63.0 | 4.840 × 10-3 | 0.9599 | 1.068 × 105 | 1.07 × 10-3 |
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