{"title":"Effects of Na2S2O3 Concentration and Solution Temperature on Anti-corrosion Property of 6061 Aluminum Alloy in Marine Environment","authors":"S. X. Cao, M. Zhu, Y. F. Yuan, S. Y. Guo","doi":"10.1007/s11665-024-09708-9","DOIUrl":null,"url":null,"abstract":"<div><p>The corrosion resistance of 6061 aluminum alloy at various Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub> concentrations and solution temperatures was studied in simulated seawater by using a series of tests. The results reveal that adding Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub> promotes the repair of passivation film, which improves its stability, compactness and integrity. As Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub> concentration increases, a decrease in corrosion rate and pitting depth/width is presented, and the pit corrosion degree significantly declines. With the rising solution temperature, the amount of AlFeSi precipitated phase reduces, and the corrosion form evolution of 6061 alloy from slight pitting to ulcerative corrosion pit.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 9","pages":"7333 - 7344"},"PeriodicalIF":2.0000,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Engineering and Performance","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11665-024-09708-9","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The corrosion resistance of 6061 aluminum alloy at various Na2S2O3 concentrations and solution temperatures was studied in simulated seawater by using a series of tests. The results reveal that adding Na2S2O3 promotes the repair of passivation film, which improves its stability, compactness and integrity. As Na2S2O3 concentration increases, a decrease in corrosion rate and pitting depth/width is presented, and the pit corrosion degree significantly declines. With the rising solution temperature, the amount of AlFeSi precipitated phase reduces, and the corrosion form evolution of 6061 alloy from slight pitting to ulcerative corrosion pit.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
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