Effect of Nitrite Ions on Steel Corrosion Induced by Chloride or Sulfate Ions

被引：5
作者：
Cao, Zhonglu [1 ]
Hibino, Makoto [1 ]
Goda, Hiroki [1 ]
机构：
[1] Kyushu Inst Technol, Dept Civil Engn, Concrete Lab, Kitakyushu, Fukuoka 8048550, Japan
来源：
INTERNATIONAL JOURNAL OF CORROSION | 2013年 / 2013卷
关键词：
D O I：
10.1155/2013/853730
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The influence of nitrite concentration on the corrosion of steel immersed in three simulated pH environments containing chloride ions or sulfate ions has been investigated by comparing and analyzing the change of half-cell potential, the change of threshold level of Cl-or SO42-, the change of threshold level of NO2-/Cl- or NO2-/SO42- mole ratio, and the changes of anodic/cathodic polarization curves and Stern-Geary constant B. The corrosivity of chloride ions against sulfate ions also has been discussed in pH 12.6, pH 10.3, and pH 8.1 environments containing 0, 0.053, and 0.2 mol/L NO2, respectively.
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页数：16
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