微生物抑制5754铝合金的海水腐蚀行为

申媛媛, 董耀华, 董丽华, 尹衍升

Corrosion Inhibition Effect of Microorganism on 5754 Al Alloy in Seawater

SHEN Yuanyuan, DONG Yaohua, DONG Lihua, YIN Yansheng

表2 5754铝合金在含微生物的海水中浸泡不同时间的电化学拟合参数

Table 2 Electrochemical fitting parameters of 5754 Al alloy immersed in seawater with bacteria for different time

Time d Rs Ω·cm2 Qf Rf Ω·cm2 Qdl Rct Ω·cm2 χ2 Yf Ω-1·cm-2·snf nf Y0 Ω-1·cm-2·sn n 1 9.34 - - - 1.42×10-5 0.912 1.97×105 0.00359 5 9.85 7.60×10-4 0.594 3.28×103 3.39×10-5 0.950 8.81×104 0.00017 10 10.12 3.56×10-4 0.673 4.33×103 3.44×10-5 0.952 1.11×105 0.00294 15 9.35 2.50×10-4 0.687 9.50×103 2.43×10-5 0.984 3.03×105 0.00023