Soil corrosion of differential aeration cells and conditions of their operation

被引：1
|
作者：
Glazov, N. N. [1 ]
Ukhlovtsev, S. M. [1 ]
Reformatskaya, I. I. [1 ]
Podobaev, A. N. [1 ]
Ashcheulova, I. I. [1 ]
机构：
[1] FGUP GNTs RF Karpov Inst Phys Chem, Moscow 105064, Russia
来源：
PROTECTION OF METALS | 2006年 / 42卷 / 03期
关键词：
Inorganic Chemistry; Aeration; Soil Corrosion; Electric Contact; Local Corrosion;
D O I：
10.1134/S0033173206030052
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Potentials stabilized at the anode and cathode of a differential aeration cell (DAC) under free corrosion conditions, electric contact, and cathodic polarization are analyzed. It is shown that the soil conductivity limits the possibility of cathodic protection. The shallow pit formation at the cathode and pitting, at the anode are the main corrosion types in the half-cells. The rate of development of local corrosion centers on the surfaces of both half-cells is virtually independent of the conditions of DAC operation.
引用
收藏
页码：238 / 243
页数：6
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