Electrochemical interaction behaviors between adjacent zinc-rich coating defects on steel structures under immersion and wet–dry environments

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-11-02 DOI:10.1016/j.ijoes.2024.100860

Jian Tang , Muye Yang , Shigenobu Kainuma , Ryo Inoue

{"title":"Electrochemical interaction behaviors between adjacent zinc-rich coating defects on steel structures under immersion and wet–dry environments","authors":"Jian Tang , Muye Yang , Shigenobu Kainuma , Ryo Inoue","doi":"10.1016/j.ijoes.2024.100860","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigates the corrosion mechanism of carbon steel beneath zinc-rich coating (ZRC) defects to understand the mutual interference of carbon steel in atmospheric environments. First, electrochemical impedance spectroscopy (EIS) was conducted to determine the self-corrosion behavior of carbon steel under ZRC defects. Subsequently, a macrocell current tests were conducted under immersion and wet–dry environments to evaluate the electrochemical interaction effects at the location of coating defects. The results indicate that the electrochemical interactions between the ZRC defects are influenced by the sacrificial anode effect of Zn. Further, the interaction mechanisms between the steel substrates beneath the organic and inorganic ZRC defects were analyzed. The findings provide deeper insight into the behavior of steel structures in atmospheric environments, offering potential improvements in the design of protective coatings for infrastructure longevity.</div></div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1452398124004024","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

This study investigates the corrosion mechanism of carbon steel beneath zinc-rich coating (ZRC) defects to understand the mutual interference of carbon steel in atmospheric environments. First, electrochemical impedance spectroscopy (EIS) was conducted to determine the self-corrosion behavior of carbon steel under ZRC defects. Subsequently, a macrocell current tests were conducted under immersion and wet–dry environments to evaluate the electrochemical interaction effects at the location of coating defects. The results indicate that the electrochemical interactions between the ZRC defects are influenced by the sacrificial anode effect of Zn. Further, the interaction mechanisms between the steel substrates beneath the organic and inorganic ZRC defects were analyzed. The findings provide deeper insight into the behavior of steel structures in atmospheric environments, offering potential improvements in the design of protective coatings for infrastructure longevity.

查看原文本刊更多论文

浸泡和干湿环境下钢结构上相邻富锌涂层缺陷之间的电化学相互作用行为

本研究探讨了碳钢在富锌涂层（ZRC）缺陷下的腐蚀机理，以了解碳钢在大气环境中的相互干扰。首先，采用电化学阻抗谱（EIS）测定了碳钢在 ZRC 缺陷下的自腐蚀行为。随后，在浸泡和干湿环境下进行了宏电池电流测试，以评估涂层缺陷位置的电化学相互作用效应。结果表明，ZRC 缺陷之间的电化学相互作用受到锌的牺牲阳极效应的影响。此外，还分析了有机和无机 ZRC 缺陷下方钢基体之间的相互作用机制。研究结果使人们对钢结构在大气环境中的行为有了更深入的了解，为改进保护涂层的设计以延长基础设施的使用寿命提供了可能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.