Iron corrosion in drinking water distribution systems - The effect of pH, calcium and hydrogen carbonate

被引：84
|
作者：
Sander, A [1 ]
Berghult, B [1 ]
Broo, AE [1 ]
Johansson, EL [1 ]
Hedberg, T [1 ]
机构：
[1] GOTHENBURG UNIV,DEPT INORGAN CHEM,S-41296 GOTHENBURG,SWEDEN
来源：
CORROSION SCIENCE | 1996年 / 38卷 / 03期
关键词：
steel; RDE/RCE; weight loss; passive films; rust;
D O I：
10.1016/0010-938X(96)00142-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion of iron in synthetic drinking water has been studied through potentiodynamic sweeps and coupon tests. Corrosion rate follows a reversed proportional dependence on the logarithm of the free carbon dioxide content (the sum of protonated carbonic acid and dissolved carbon dioxide). In water with low total carbonate concentrations the addition of calcium ions decreases the corrosion rate. In waters with moderate and high total carbonate content no dependence on the calcium concentration is observed.
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页码：443 / 455
页数：13
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