Effect of chromium on mesa corrosion of carbon steel

被引:0
|
作者
Nyborg, R [1 ]
Dugstad, A [1 ]
Dronen, PE [1 ]
机构
[1] Inst Energy Technol, IFE, Kjeller, Norway
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The factors affecting local breakdown of protective corrosion films in CO2 corrosion of carbon steel have been studied in flow loop experiments at 40-80 degreesC and pH 5.8. Above 60 degreesC corrosion films with good protective properties can form under these conditions, but mesa attack with very high local corrosion rates can occur especially at high flow rates. The presence of 0.5% chromium in the steel was found to reduce significantly the tendency for severe mesa attack in carbon steels during CO2 corrosion.
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页码:63 / 69
页数:7
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