将腐蚀模式与 2XXX 系列合金的微观结构联系起来：一种比较方法

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-23 DOI:10.1002/sia.7321

Rafael Emil Klumpp, Sajjad Akbarzadeh, João Victor de Sousa Araujo, Maurice François Gonon, Fabienne Delaunois, Isolda Costa, Marie‐Georges Olivier

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引用次数: 0

摘要

在这项研究中，通过将 AA2050-T84、AA2198-T851 和 AA2024-T3 合金浸泡在三种测试溶液（具体为氯化钠溶液（3.5% NaCl）、符合 ASTM G34-18 标准的 EXCO 溶液以及 ASTM G110-15 推荐的晶间腐蚀（IGC）测试溶液）中，并通过扫描振动电极技术（SVET）对其局部腐蚀敏感性进行了比较。结果表明，与所研究的其他 2XXX 系列合金相比，AA2050-T84 合金对所有测试类型腐蚀的敏感性都更高。由于 AA2050-T84 的微观结构特征是表面微米级富铜金属间颗粒分布不同，且与 T1（Al2CuLi）相的分布有关，因此其腐蚀穿透更深。

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Correlating corrosion modes with the microstructure of the 2XXX series alloys: A comparative approach

In this study, the localized corrosion susceptibility of AA2050‐T84, AA2198‐T851, and AA2024‐T3 alloys was compared by immersion in three test solutions, specifically sodium chloride solution (3.5% NaCl), EXCO solution, according to ASTM G34‐18, and a solution for intergranular corrosion (IGC) test recommended by ASTM G110‐15 and via scanning vibrating electrode technique (SVET). The results showed higher susceptibility of AA2050‐T84 alloy to all types of corrosion tested compared to the other studied 2XXX series alloys. Corrosion penetration was deeper in the AA2050‐T84 due to its microstructural characteristics as a difference in the micrometric Cu‐Rich intermetallic particle distribution on the surface and related to the distribution of the T1 (Al2CuLi) phase.

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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.