{"title":"Improving the Corrosion Resistance of Carbon Steel Via Aluminum-Based Coating from Ionic Liquid Electrolytes at Room Temperature","authors":"Wen Wang, Na Li, Zhiyuan Li, Li-li Jiang, Wei-Li Song, Mingyong Wang, Shuqiang Jiao","doi":"10.1007/s11663-024-03260-6","DOIUrl":null,"url":null,"abstract":"<p>Improving the corrosion resistance of carbon steel is of great importance to realize widely use in various industries. The anti-corrosion coating is a significant protective strategy. Therefore, uniform aluminum coatings (AlO<sub><i>x</i></sub>-CS), electrodepositing in ionic liquid electrolyte at room temperature, was developed to enhance corrosion resistance of carbon steel. The lower part of the electrode has a better distribution uniformity than the upper part of the electrode, and the distribution of a line has the lowest variance. The uniform AlO<sub><i>x</i></sub>-CS coating is the most corrosion resistant due to sealed Al<sub>2</sub>O<sub>3</sub> layers. The corrosion rate of the AlO<sub><i>x</i></sub>-CS coating is 0.4 mm a<sup>−1</sup>. The self-corrosion current density of AlO<sub><i>x</i></sub>-CS coating is 34.4 <i>μ</i>A cm<sup>−2</sup>, nearly 2 times compared with pristine carbon steel. The impedance value with AlO<sub><i>x</i></sub>-CS coating is increased by nearly 300 times compared with pristine carbon steel. The morphology and composition of aluminum-based reinforced coatings had no significant changes in atmospheric exposure, 3.5 pct NaCl salt spray and 3.5 pct NaCl immersion environments. The aluminum-based reinforced coatings can enhance the lifespan of carbon steel materials, while also reducing economic losses and safety hazards.</p>","PeriodicalId":18613,"journal":{"name":"Metallurgical and Materials Transactions B","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metallurgical and Materials Transactions B","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s11663-024-03260-6","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Improving the corrosion resistance of carbon steel is of great importance to realize widely use in various industries. The anti-corrosion coating is a significant protective strategy. Therefore, uniform aluminum coatings (AlOx-CS), electrodepositing in ionic liquid electrolyte at room temperature, was developed to enhance corrosion resistance of carbon steel. The lower part of the electrode has a better distribution uniformity than the upper part of the electrode, and the distribution of a line has the lowest variance. The uniform AlOx-CS coating is the most corrosion resistant due to sealed Al2O3 layers. The corrosion rate of the AlOx-CS coating is 0.4 mm a−1. The self-corrosion current density of AlOx-CS coating is 34.4 μA cm−2, nearly 2 times compared with pristine carbon steel. The impedance value with AlOx-CS coating is increased by nearly 300 times compared with pristine carbon steel. The morphology and composition of aluminum-based reinforced coatings had no significant changes in atmospheric exposure, 3.5 pct NaCl salt spray and 3.5 pct NaCl immersion environments. The aluminum-based reinforced coatings can enhance the lifespan of carbon steel materials, while also reducing economic losses and safety hazards.