International Journal of Minerals Metallurgy and Materials
·
2024
·Vol. 32
·期 1
·119-126
·
IF 5.6
Wang Xiaoxue,Jin Lulu,Wang Jinke,Wang Rongqiao,Liu Xiuchun,Gao Kai,Sun Jingli,Yuan Yong,Ma Lingwei,Qian Hongchang,Zhang Dawei
The atmospheric corrosion monitoring (ACM) technique has been widely employed to track the real-time corrosion behavior of metal materials. However, limited studies have applied ACM to the corrosion protection properties of organic coatings. This study compared a bare epoxy coating with one containing zinc phosphate corrosion inhibitors, both applied on ACM sensors, to observe their corrosion protection properties over time. Coatings with artificial damage via scratches were exposed to immersion and alternating dry and wet environments, which allowed for monitoring galvanic corrosion currents in real-time. Throughout the corrosion tests, the ACM currents of the zinc phosphate/epoxy coating were considerably lower than those of the blank epoxy coating. The trend in ACM current variations closely matched the results obtained from regular electrochemical tests and surface analysis. This alignment highlights the potential of the ACM technique in evaluating the corrosion protection capabilities of organic coatings. Compared with the blank epoxy coating, the zinc phosphate/epoxy coating showed much-decreased ACM current values that confirmed the effective inhibition of zinc phosphate against steel corrosion beneath the damaged coating.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Peng Wang,Jingjing Zhang,Guangxu Zhao,Feng Hong,Hai Lin
Electrospun fluorescent graphene/polyacrylonitrile (R-AMG/PAN)(R-AMG was prepared by acid-modified graphene loaded with rare earth complexes.) and fluorescent graphite/chitosan/polyacrylonitrile (R-AMG/CS/PAN) membranes were incorporated into epoxy resin to develop a smart coating with fluorescence responsiveness to chloride ions (Cl − ), and a comprehensive comparison of both coatings was conducted to assess their ability for corrosion protection and early corrosion monitoring during salt spray testing. Fluorescent graphene is a source for detecting the corrosion behavior of coatings. The use of electrostatic spinning technology significantly enhances the fluorescent properties of graphene. Additionally, the fiber structure enhances the barrier properties of the coating. The work provides a meaningful strategy for the design of intelligent protective materials.
研究领域:
材料科学
·
防腐蚀工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
OPTIK
·
2019
·
IF 1.914
Xianqiang Xiong,Liya Fan,Yiming Xu,Qiqiang Zhang,Jiangshan Li,Yong Wang,Guihua Chen,Chenglin Wu,Tianding Li,Shuai Fu,Guolin Zhang
The photo induced open circuit potential and Tafel curves have been widely used to evaluate the photoelectrochemical cathodic protection performance, but these conventional measurements cannot real-time monitor the images of the protected metal, and thus we are not able to judge whether the metal is protected or not during operation. To address these issues, in situ imaging technique based on particle video microscope (PVM) probe is developed to visually monitor the real-time images of the carbon steel. Anatase and rutile TiO 2 in different nanostructures were selected as the model photoelectrode materials, and their photogenerated cathodic protection performance was investigated by conventional electrochemical characterizations and in-situ PVM measurements, respectively. The in-situ imaging tool reveals that pitting corrosion can destroy the carbon steel in the chloride containing environment. However, once coupled with the TiO 2 photoanodes, the carbon steel can maintain a long-term stability without being corroded. Therefore, the in-situ imaging technique developed in this study provide us a direct route to detect and evaluate the long-term photocathodic protection performance, which will allow us to better clarify the corrosion mechanism, and finally for the better design of photoanode materials.
研究领域:
材料科学
·
电化学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Zheng Liu,Ruonan Jia,Yang Jian,Feng Chen,Guilong Yan,Dongxu He
The occurrence of corrosion can’t be completely eliminated. To prevent the failure of structural materials, corrosion has to be easily identified, visualized and detected at early-stage, in order to intervene at the point where it is necessary. In this view, fluorescent N-doped CDs have been synthesized to synergistically inhibit and monitor corrosion of iron. The as-prepared CDs were fabricated by simple solvothermal process using citric acid as carbon source and ammonia as dopant . It is found that the active groups on the surface of the CDs promote the formation of adsorption film of CDs on iron plates and effective fluorescence emission . As a result, the CDs could readily inhibit the corrosion of iron and exhibit an inhibition efficiency of 88 % at 180 mg/L. As the degree of corrosion increases, the CDs-adsorption film can sensitively, visually and effectively respond to released Fe 3+ due to the complexation between CDs and Fe 3+ . Due to this dual function of CDs for corrosion monitoring and inhibition, they can readily trace early-stage corrosion and prevent its development. This is a synergistic strategy to prevent critical engineering failures and to ensure the safety of structural metal materials.
研究领域:
材料科学
·
腐蚀工程
·
化学
✓ 已验证
产品关联
DOI
高影响因子
CORROSION SCIENCE
·
2023
·
IF 8.3
Yiqian Lv,Wenjie Zhao,Yujie Qiang,Jingmao Zhao
Based on high barrier performance, the combination of active/passive self-repairing and early corrosion monitoring functions becomes an ideal anti-corrosion strategy. Abundant surface polar functional groups of carbon quantum dots (CQDs) made of juice helped graphite carbon nitride(g-C 3 N 4 ) compatible with epoxy resin, and effectively improved the barrier property of CQDs@g-C 3 N 4 composites in coatings. In addition, the adsorption of CQDs on metal is the source of the active protective performance of the coating. The fluorescence characteristics of CQDs made it realizable to detect the micro-cracks in coatings. This work provides a meaningful strategy for the design of intelligent protective materials.
研究领域:
材料科学
·
化学工程
·
智能材料设计
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）