Corrosion Behavior of Ferrite-Pearlite Steel Exposed to H2S/CO2 Environment

被引：3

作者：

Wang, Hongyan ^{[1
]}

Yu, Chi ^{[1
,2
]}

Gao, Xiuhua ^{[1
]}

Du, Linxiu ^{[1
]}

Wang, Hongwei ^{[2
]}

机构：

[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China

[2] Northeastern Univ Qinhuangdao, Sch Resource & Mat, Qinhuangdao 061000, Hebei, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2020年 / 15卷 / 07期

基金：

中国博士后科学基金;

关键词：

ferrite-pearlite steel; corrosion behavior; H2S-CO2-Cl-; environment; mass loss; potentiodynamic polarization; LOW-ALLOY STEEL; PIPELINE STEEL; CARBON-STEEL; HYDROGEN-SULFIDE; STAINLESS-STEEL; TUBE STEEL; X65; STEEL; HIGH H2S; OIL; PRESSURE;

D O I：

10.20964/2020.07.42

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The corrosion characteristics of ferrite-pearlite steel under H2S-CO2-Cl- environment are studied by accelerated corrosion test and electrochemical experiment. The micromorphologies and crystal structures of corrosion products are analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD), the mass loss and potentiodynamic polarization techniques are studied on corrosion rate of the test steel. The results show that H2S dominates the whole corrosion process and seriously affects the corrosion properties, it changes the corrosion products significant differences on structure with immersion time, ultimately stable corrosion products pyrrhotite can effectively reduce corrosion rate, and provide good protection to the steel matrix.

引用

页码：6737 / 6747

页数：11

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