Analyses of the Sequential Stages of Corrosion on AA2024T3 Using the Scanning Vibrating Electrode Technique (SVET)
Analyses of the Sequential Stages of Corrosion on AA2024T3 Using the Scanning Vibrating Electrode Technique (SVET)
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DOI：
10.1007/s11665-015-1701-0
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发表时间：
2015-09
影响因子：
2.3
通讯作者：
U. Donatus;G. Thompson;H. Liu;D. Elabar
中科院分区：
文献类型：
--
作者：
U. Donatus;G. Thompson;H. Liu;D. Elabar
采用扫描振动电极技术（SVET）研究了AA2024T3铝合金的原位腐蚀现象。随着时间的推移，合金的腐蚀侵袭有三个不同的顺序阶段（0-75分钟、75-180分钟和180分钟后）。随着时间的推移，合金表面阳极活性强度的增加和减少导致净电流密度值的增加和减少，这是腐蚀阶段逐步变化的原因。研究还发现，在浸没试验后，合金表面出现了类似蚀刻的轻微攻击区域。
The scanning vibrating electrode technique (SVET) has been used to study the in-situ corrosion phenomena on AA2024T3 aluminum alloy. Three distinct sequential stages of corrosion attack, with time, on the alloy have been revealed (0-75, 75-180 min, and after 180 min). The increase and decrease in the intensity of the anodic activities at the surface of the alloy, which give a corresponding increase and decrease in the net current density values, with time, are responsible for the stepwise changes in the corrosion stages. The work also revealed mild etch-like attack regions on the surface of the alloy after the immersion test.