{"title":"Corrosion protection investigations of oxide-silane composite coating on hot dip aluminized steel","authors":"Zhong-Xia Liu, Lei Shi, Ai-Yun Jiang, Jian-Xiu Liu, Bao-Feng Zhang, Ya-Jun Zhou, Guo-Peng Zhang","doi":"10.1002/maco.202414506","DOIUrl":null,"url":null,"abstract":"<p>The hot dip aluminized ASTM 1035 steels (Al-coated steel) underwent anodic oxidization, and various thicknesses of Al<sub>2</sub>O<sub>3</sub> coating were applied to the surface of the Al-coated steels (Al–Al<sub>2</sub>O<sub>3</sub>-coated steel). The corrosion resistance of the Al–Al<sub>2</sub>O<sub>3</sub>-coated steel was investigated using potentiodynamic tests, electrochemical impedance spectroscopy tests and measurement of galvanic current density in a bimetallic cell. It was found that the anodic oxidation resulted in the formation of a porous Al<sub>2</sub>O<sub>3</sub> coating on the surface of the Al-coated steel, improving both its corrosion resistance and galvanic corrosion resistance when coupled with carbon fiber reinforced nylon 6 composite (C<sub>f</sub>/PA6). Silane treatment effectively sealed the pores within the Al<sub>2</sub>O<sub>3</sub> coating, resulting in improved corrosion protection for Al–Al<sub>2</sub>O<sub>3</sub>-coated steel due to the exceptional insulation, impermeability and hydrophobic properties of silane coating. Compared to the Al-coated steel/carbon fiber reinforced polymer (CFRP) couple and Al–Al<sub>2</sub>O<sub>3</sub>-coated steel/CFRP couple, stable galvanic current density decreased by approximately 75% and 45%, respectively.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"87-98"},"PeriodicalIF":1.6000,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials and Corrosion-werkstoffe Und Korrosion","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/maco.202414506","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The hot dip aluminized ASTM 1035 steels (Al-coated steel) underwent anodic oxidization, and various thicknesses of Al2O3 coating were applied to the surface of the Al-coated steels (Al–Al2O3-coated steel). The corrosion resistance of the Al–Al2O3-coated steel was investigated using potentiodynamic tests, electrochemical impedance spectroscopy tests and measurement of galvanic current density in a bimetallic cell. It was found that the anodic oxidation resulted in the formation of a porous Al2O3 coating on the surface of the Al-coated steel, improving both its corrosion resistance and galvanic corrosion resistance when coupled with carbon fiber reinforced nylon 6 composite (Cf/PA6). Silane treatment effectively sealed the pores within the Al2O3 coating, resulting in improved corrosion protection for Al–Al2O3-coated steel due to the exceptional insulation, impermeability and hydrophobic properties of silane coating. Compared to the Al-coated steel/carbon fiber reinforced polymer (CFRP) couple and Al–Al2O3-coated steel/CFRP couple, stable galvanic current density decreased by approximately 75% and 45%, respectively.
期刊介绍：
Materials and Corrosion is the leading European journal in its field, providing rapid and comprehensive coverage of the subject and specifically highlighting the increasing importance of corrosion research and prevention.
Several sections exclusive to Materials and Corrosion bring you closer to the current events in the field of corrosion research and add to the impact this journal can make on your work.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
