Influence of thermomechanical treatment on the corrosion behaviour of 2A97 Al-Cu-Li alloy

被引：0
|
作者：
You Lv [1 ]
Teruo Hashimoto [2 ]
Xiaorong Zhou [2 ]
Xinxin Zhang [1 ]
机构：
[1] Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure,School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology
[2] Corrosion and Protection Centre, Department of Materials, the University of
来源：
Corrosion Communications | 2024年 / 15卷 / 03期
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中图分类号：
TG172 [各种类型的金属腐蚀];
学科分类号：
摘要：
In the present work, the corrosion behaviour of 2A97 Al-Cu-Li alloy with different thermomechanical treatments is investigated using electron microscopy and electrochemical measurements. The various thermomechanical treatments allowed the assessment of the individual and synergistic influence of local plastic deformation and precipitation on the corrosion susceptibility and mechanism of the alloy. It is found that in NaCl solution, corrosion of the alloys in T3 and T4 tempers occurs in the form of intergranular corrosion, which is closely associated with stored energy distribution. By contrast, the alloys in T6 and T8 tempers exhibit mainly intragranular corrosion due to high volume fractions of precipitates formed by artificial ageing.
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页码：13 / 23
页数：11
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