Inhibition and facilitation mechanisms of galvanic corrosion between carbon fiber and steel in atmospheric environments

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-02-25 DOI:10.1016/j.compositesb.2025.112332

Muye Yang, Jian Tang, Shigenobu Kainuma

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引用次数: 0

Abstract

For a steel structure with carbon fiber-reinforced polymer (CFRP) bonded reinforcement, galvanic corrosion is thermodynamically favored between the carbon fiber and metal. However, understanding of corrosion behaviors and mechanisms between two materials in atmospheric environments remain limited. This study investigated the galvanic corrosion behavior between carbon fiber and steel based on activation-controlled kinetics. The inhibition and facilitation factors of galvanic corrosion in an atmospheric environment were examined, including the material properties of the carbon fiber and the dynamic influence of system resistance, water-film condition, and temperature variation. The results revealed that localized pitting corrosion is prone to occurring near the electrical contact points of the two materials. Under extreme atmospheric conditions, the galvanic corrosion rate increases by 1–2 orders of magnitude as the reaction shifts from diffusion control to activation control. Additionally, elevated temperatures exacerbate this effect, with the galvanic corrosion rate exhibiting greater sensitivity to temperature changes than steel self-corrosion. Finally, a simplified macroscopic circuit model was proposed to integrate the inhibition and facilitation mechanisms, based on the four coupling modes governed by the Butler–Volmer equation. The present results provide new insights regarding the corrosion and deterioration mechanism of CFRP bonded components.

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.