碳化硅陶瓷/环氧复合涂层在模拟深海和大气条件下对碳钢的腐蚀性能

IF 1.3 4区化学 Q4 ELECTROCHEMISTRY

International Journal of Electrochemical Science Pub Date : 2025-05-13 DOI:10.1016/j.ijoes.2025.101067

Xiaoping Guo , Yungen He , Chao Yao , Shuan Liu

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引用次数: 0

摘要

采用电化学测量技术和形貌表征方法，在3.5 wt% NaCl常压和60 MPa高静水压力条件下制备了SiC陶瓷/环氧复合涂层。结果表明：高静水压力浸泡60天后，涂层的低频阻抗模量（|Z|0.01 Hz）从1011 Ω·cm2下降到108 Ω·cm2，而在常压下则下降到1010 Ω·cm2。浸渍60天后，常压下SiC/CC的饱和水吸附量（0.182 %）低于60 MPa下的饱和水吸附量（0.212 %）。SEM结果表明，高静水压力会显著加剧SiC/CC表面的微观组织退化。制备的SiC/CC对深海环境下矿用车辆具有良好的防护效果。

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Corrosion performance of SiC ceramic/epoxy composite coatings on carbonsteel in simulated deep-sea and atmospheric conditions

A SiC ceramic/epoxy composite coating was prepared and comparatively studied in 3.5 wt% NaCl solution under atmospheric pressure and 60 MPa high hydrostatic pressure using electrochemical measurement technologies and morphology characterization. Results showed that low frequency impedance modulus (|Z|_0.01 Hz) of the coating decreased from 10¹¹ Ω·cm² to10⁸ Ω·cm² after 60-day immersion under high hydrostatic pressure, while that decreased to 10¹⁰ Ω·cm² under atmospheric pressure. The saturated water adsorption of SiC/CC under atmospheric pressure (0.182 %) was lower than that under 60 MPa (0.212 %) after 60-day immersion. SEM revealed that high hydrostatic pressure could significantly exacerbate microstructural degradation on the SiC/CC surface. The prepared SiC/CC exhibited good protective effects on mining vehicles in deep-sea environment.

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来源期刊

International Journal of Electrochemical Science 工程技术-电化学

CiteScore

3.00

自引率

20.00%

发文量

714

审稿时长

2.6 months

期刊介绍： International Journal of Electrochemical Science is a peer-reviewed, open access journal that publishes original research articles, short communications as well as review articles in all areas of electrochemistry: Scope - Theoretical and Computational Electrochemistry - Processes on Electrodes - Electroanalytical Chemistry and Sensor Science - Corrosion - Electrochemical Energy Conversion and Storage - Electrochemical Engineering - Coatings - Electrochemical Synthesis - Bioelectrochemistry - Molecular Electrochemistry