Effect of ozone on corrosion behavior of mild steel in seawater
Effect of ozone on corrosion behavior of mild steel in seawater
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DOI：
10.1016/j.corsci.2011.10.020
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发表时间：
2012-02-01
影响因子：
8.3
通讯作者：
Ikai, Michiaki
中科院分区：
文献类型：
--
作者：
Liao, Jinsun;Kishimoto, Keiji;Ikai, Michiaki
采用浸泡试验和动电位极化、电化学阻抗谱等电化学技术研究了臭氧对低碳钢在流动海水中腐蚀的影响。研究发现，在含2 ppm臭氧的海水中，钢试件的失重明显小于在天然海水中的失重。臭氧化海水中试样发生局部腐蚀，而天然海水中试样发生普遍腐蚀。臭氧有利于钢表面形成防腐膜，增加了电荷传递电阻，降低了钢在海水中的阳极电流。(C) 2011 Elsevier Ltd.版权所有。
The effect of ozone on corrosion of mild steel in flowing seawater was investigated by using immersion test and electrochemical techniques including potentiodynamic polarization and electrochemical impedance spectroscopy. It is found that the weight loss of the steel specimens in the seawater containing 2 ppm ozone is significantly less than that in natural seawater. Localized corrosion occurs in the specimens exposed to ozonated seawater, while general corrosion happens to the specimens in natural seawater. Ozone facilitates the formation of corrosion-protective film on steel surface, which increases the charge transfer resistance and decreases the anodic current of steel in seawater. (C) 2011 Elsevier Ltd. All rights reserved.