The effect of H2S concentration on the corrosion behavior of API 5L X-70 steel

被引：31

作者：

Arzola, S ^{[1
]}

Genescá, J ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Fac Quim, Dept Ingn Met, Mexico City 04510, DF, Mexico

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2005年 / 9卷 / 04期

关键词：

hydrogen sulfide in chloride solutions; API 5L X-70 steel; corrosion; electrochemical impedance;

D O I：

10.1007/s10008-004-0579-9

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This work presents electrochemical data measured during the corrosion of API 5L X-70 pipeline steel immersed in aqueous environments containing dissolved H2S. Three different electrolyte were used: a 3 wt% NaCl solution containing 100, 650 and 2,550 ppm of H2S respectively. The corrosion of steel is described by means of electrochemical impedance spectroscopy. The electrochemical data obtained from the steel monitoring are presented in terms of Nyquist plots. The influence of the total H2S concentration as well as the effect of temperature on the corrosion of API 5L X-70 steel were also studied. In the presence of H2S the R-ct values decrease as the H2S concentration increases.

引用

页码：197 / 200

页数：4

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