DP600双相钢在两种盐雾实验条件下的腐蚀行为对比研究
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吕良兴,周和荣,肖葵,但佳永,姚望,吴磊,段凯欣
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Corrosion Behavior of DP600 Dual Phase Steel in Two Accelerated Test Environments
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Liangxing LV,Herong ZHOU,Kui XIAO,Jiayong DAN,Wang YAO,Lei WU,Kaixin DUAN
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| 表3 DP600双相钢在NSS实验下电化学阻抗谱拟合结果 |
| Table 3 Fitting results of EIS of DP600 dual phase steel after NSS test for different time |
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| Time | Rs/Ω·cm2 | Qr /Ω-1·cm-2·S-nr | nr | Rr /Ω·cm2 | Qdl /Ω-1·cm-2·S-ndl | ndl | Rct /Ω·cm2 | Aw /10-3 Ω·cm2·S-1/2 |
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| 120 h | 3.391 | — | — | — | 1.05×10-2 | 0.526 | 351.5 | 7.746 | | 240 h | 4.075 | — | — | — | 9.8×10-3 | 0.514 | 214.4 | 1.047 | | 480 h | 11.2 | 1.15×10-4 | 0.903 | 91.25 | 1.35×10-3 | 0.554 | 188.5 | 1.015 | | 720 h | 15.98 | 2.13×10-4 | 0.898 | 136.6 | 1.71×10-4 | 0.65 | 261.88 | 0.125 | | 960 h | 17.59 | 1.96×10-4 | 0.919 | 168.6 | 2.87×10-3 | 0.585 | 348.01 | 0.04 | | 1200 h | 32.71 | 2.88×10-4 | 0.922 | 298.8 | 1.13×10-3 | 0.591 | 409.5 | 0.013 |
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