904L超级奥氏体不锈钢在模拟核电一回路环境中的腐蚀行为研究
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李禅, 王庆田, 杨承刚, 张宪伟, 韩冬傲, 刘雨薇, 刘智勇
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Corrosion Behavior of 904L Super-austenitic Stainless Steel in Simulated Primary Water in Nuclear Power Plants
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LI Chan, WANG Qingtian, YANG Chenggang, ZHANG Xianwei, HAN Dongao, LIU Yuwei, LIU Zhiyong
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表3 3种不同组织904L不碳钢在不同温度环境下阻抗拟合结果
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Table 3 Fitting parameters of EIS results of as-received, sensitized and solid solution treated 904L stainless steel in the test solution at different temperatures
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| Sample state | T / oC | Rs Ω·cm2 | Qf | Rf Ω·cm2 | Qdl | Rct Ω·cm2 |
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Y0 Ω-1·cm-2·s-n | n | Y0 Ω-1·cm-2·s-n | n |
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| As-received | 25 | 18.45 | 9.5 × 10-2 | 0.845 | 78.2 | 7.2 × 105 | 0.318 | 3.8 × 103 | | 100 | 0.64 | 1.3 × 10-6 | 1 | 0.98 | 2.6 × 10-2 | 0.669 | 7.9 × 10-2 | | 200 | 1.9 × 10-3 | 1.8 × 10-6 | 1 | 0.53 | 2.0 × 10-1 | 0.762 | 5.3 × 10-1 | | 300 | 5.5 × 10-9 | 1.7 × 10-6 | 1 | 0.55 | 1.4 × 10-1 | 0.921 | 5.5 × 10-1 | | Sensitized | 25 | 7.11 | 1.1 × 10-6 | 1 | 106.5 | 3.6 × 10-2 | 0.780 | 6.4 × 10-2 | | 100 | 0.73 | 7.9 × 10-2 | 0.852 | 12.79 | 2.2 × 10-2 | 1 | 5.0 × 101 | | 200 | 2.1 × 10-5 | 1.4 × 10-6 | 1 | 0.672 | 5.0 × 10-1 | 0.875 | 1.8 × 101 | | 300 | 6.9 × 10-5 | 1.6 × 10-6 | 1 | 0.563 | 9.4 × 10-2 | 0.851 | 3.57 | | Solid solution | 25 | 10.42 | 2.2 × 10-4 | 0.825 | 57.1 | 5.7 × 10-4 | 0.970 | 8.8 × 1013 | | 100 | 4.18 | 7.2 × 10-4 | 0.925 | 34.5 | 1.1 × 10-3 | 1 | 3.8 × 104 | | 200 | 2.58 | 5.2 × 10-4 | 1 | 11.9 | 6.5 × 10-4 | 1 | 5.7 × 10-3 | | 300 | 0.33 | 7.2 × 10-3 | 0.827 | 0.2 | 3.2 × 10-1 | 0.901 | 4.32 |
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