S2- 和Cl- 对316L奥氏体不锈钢的腐蚀钝化行为的协同作用
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耿真真, 张钰柱, 杜小将, 吴汉辉
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Synergistic Effect of S2- and Cl- on Corrosion and Passivation Behavior of 316L Austenitic Stainless Steel
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GENG Zhenzhen, ZHANG Yuzhu, DU Xiaojiang, WU Hanhui
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表1 不同S2-浓度人工海水中的EIS拟合参数
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Table 1 Fitting parameters of EIS of 316L austenitic stainless steel in artificial seawater with different S2- concentrations
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S2- concentrations mmol·L-1 | Rs Ω·cm2 | Rt Ω·cm2 | Yt Ω-1·cm-2·s-n | nt | Rf Ω·cm2 | Yf Ω-1·cm-2·s-n | nf | χ2 |
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| 0 | 25.68 | 3.01 × 105 | 3.02 × 10-5 | 0.93 | 1.86 × 105 | 7.81 × 10-5 | 0.86 | 1.2 × 10-3 | | 0.1 | 25.34 | 2.33 × 105 | 3.36 × 10-5 | 0.95 | 8.18 × 104 | 8.82 × 10-5 | 0.93 | 1.5 × 10-3 | | 1 | 25.76 | 1.80 × 105 | 3.79 × 10-5 | 0.95 | 5.69 × 104 | 9.67 × 10-5 | 0.92 | 2.0 × 10-3 | | 10 | 24.82 | 1.72 × 105 | 4.11 × 10-5 | 0.94 | 4.38 × 104 | 1.13 × 10-4 | 0.79 | 1.7 × 10-3 | | 100 | 24.32 | 1.39 × 105 | 4.22 × 10-5 | 0.86 | 3.53 × 104 | 1.22 × 10-4 | 0.86 | 1.5 × 10-3 |
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