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 1.6 4区化学 Q4 CHEMISTRY, PHYSICAL

Surface and Interface Analysis 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

Surface and Interface Analysis 化学-物理化学

CiteScore

3.30

自引率

5.90%

发文量

130

审稿时长

4.4 months

期刊介绍： Surface and Interface Analysis is devoted to the publication of papers dealing with the development and application of techniques for the characterization of surfaces, interfaces and thin films. Papers dealing with standardization and quantification are particularly welcome, and also those which deal with the application of these techniques to industrial problems. Papers dealing with the purely theoretical aspects of the technique will also be considered. Review articles will be published; prior consultation with one of the Editors is advised in these cases. Papers must clearly be of scientific value in the field and will be submitted to two independent referees. Contributions must be in English and must not have been published elsewhere, and authors must agree not to communicate the same material for publication to any other journal. Authors are invited to submit their papers for publication to John Watts (UK only), Jose Sanz (Rest of Europe), John T. Grant (all non-European countries, except Japan) or R. Shimizu (Japan only).