Evaluation of Corrosion and Erosion-Corrosion Behavior of X65 Pipeline Steel in Flowing CO2-Saturated Electrolyte

被引：5

作者：

Zhang, Qiliang ^{[1
]}

Jiang, Wanheng ^{[1
]}

Wang, Zijie ^{[1
]}

Wang, Lidong ^{[2
]}

Huang, Yi ^{[1
,3
]}

Xu, Yunze ^{[1
,3
]}

机构：

[1] Dalian Univ Technol, Sch Naval Architecture & Ocean Engn, Linggong Raod 2, Dalian 116024, Liaoning, Peoples R China

[2] Dalian Shipbldg Ind Co Ltd, Dalian 116024, Liaoning, Peoples R China

[3] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Linggong Raod 2, Dalian 116024, Liaoning, Peoples R China

来源：

CORROSION | 2023年 / 79卷 / 06期

关键词：

WORDS; corrosion; erosion-corrosion; flow velocity; negative synergy; pipeline steel; TURBULENT-FLOW; PARTICLE CONCENTRATION; ACCELERATED CORROSION; METALLIC MATERIALS; CO2; CORROSION; CARBON-STEEL; MILD-STEEL; RESISTANCE; MICROSTRUCTURE; CONJUNCTION;

D O I：

10.5006/4162

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the corrosion and erosion-corrosion behaviors of X65 pipeline steel in the flowing CO2-saturated electrolyte were electrochemically studied using a rotation disk system. The results showed that the accumulation of the Fe3C layer in the electrolyte without sand particles enhanced the cathodic reaction, increasing the corrosion rate. The increase in flow velocity facilitated the rapid accumulation of a thick Fe3C layer, which linearly increased the corrosion rate with increasing rotation speed. The sand impacts removed the corrosion product layer and broke the exposed Fe3C network, resulting in a negative synergy of erosion-enhanced corrosion. The erosion-corrosion negatively affected ferrites compared with the pearlites in an electrolyte containing sand due to the weaker erosion resistance.

引用

页码：587 / 604

页数：18

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