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4 DP600双相钢在CCT下电化学阻抗谱拟合结果 |
| Table 4 Fitting results of EIS of DP600 dual phase steel after CCT 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 | 1.743 | 7.08×10-2 | 0.543 | 10.81 | 1.11×10-2 | 0.862 | 196.8 | 4.538 | | 240 h | 2.294 | 9.3×10-4 | 0.832 | 12.58 | 2.31×10-3 | 0.847 | 159.6 | 4.715 | | 480 h | 13.58 | 6.59×10-4 | 0.605 | 14.41 | 2.51×10-3 | 0.823 | 93.5 | 2.512 | | 720 h | 15.49 | 6.32×10-4 | 0.585 | 22.64 | 1.61×10-3 | 0.886 | 123.7 | 4.741 | | 960 h | 16.51 | 3.61×10-4 | 0.637 | 35.01 | 1.86×10-3 | 0.869 | 130.8 | 5.636 | | 1200 h | 18.32 | 5.07×10-4 | 0.689 | 48.36 | 2.13×10-3 | 0.824 | 125.4 | 0.762 |
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