Effects of Environmental Factors on Corrosion Behavior of E690 Steel in Simulated Marine Environment

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外文摘要：The effects of hydrostatic pressure,dissolved oxygen,temperature and flow velocity,and their interaction on the corrosion rates of E690 high-strength steel(HSS)in simulated marine environments were studied using response surface methodol-ogy.The results show that the flow velocity exerts the most significant influence on the corrosion rate of E690 HSS.Con-sequently,the corrosion behavior of E690 HSS under varying flow velocities were analyzed profoundly from initial pitting corrosion to long-term corrosion properties.The results indicate that the flow state facilitates the mass transfer and enhances the adsorption tendency of Cl-by enhancing the electrochemical activity of the steel surface.These factors accelerate the electrochemical reactions,resulting in increased pitting density,depth and the long-term corrosion rates in dynamic seawater environments.

外文关键词：

E690 steelSimulated marine environmentCorrosion behaviorFlow velocityResponse surface methodology(RSM)

作者：

Jingjing Peng、Jing Liu、Shen Zhang、Zhihui Wang、Xian Zhang、Kaiming Wu

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作者单位：

Collaborative Innovation Center for Advanced Steels,Hubei Province Key Laboratory of Systems Science in Metallurgical Process,The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaHubei Province Key Laboratory of Systems Science in Metallurgical Process

项目编号：

U20A2027951601137Y202207

出版年：

2024

DOI：

10.1007/s40195-023-01637-1

金属学报(英文版)

中国金属学会

金属学报(英文版)

CSTPCD

影响因子：0.77

ISSN：1006-7191

年,卷(期)：2024.37(4)

参考文献量76