Data pertaining to the work "Galvanic coupling between AA7075-T6 and AA2024-T3 intensifies local corrosion"

This dataset provides the optical and electrochemical data used for analysing the impact of macrogalvanic coupling on the local corrosion behaviour of AA2024-T3 and AA7075-T6. By using in situ reflected light microscopy coupled with electrochemical measurements, the goal is to identify and quantify the impact of the galvanic coupling on the kinetics and extent of changes due to local corrosion. The dataset presents optical (jpg) and electrochemical data (idf) for uncoupled and galvanically-coupled tests. Kinetics and extent of changes is measured from the optical dataset through change detection implemented through a simple image subtraction. The electrochemical data is analysed by considering the magnitudes observed as well as how they correspond to optically-observed changes. SEM images that supplement that optical data are also provided for some of the tests.

本数据集提供了用于分析宏观电偶耦合（macrogalvanic coupling）对AA2024-T3与AA7075-T6铝合金局部腐蚀行为影响的光学与电化学数据。本研究采用原位反射光显微镜联用电化学测量的实验方案，旨在识别并量化电偶耦合对局部腐蚀引发的变化的动力学过程与发展程度。本数据集涵盖无耦合测试与电偶耦合测试的光学（jpg格式）及电化学（idf格式）数据。通过简单图像减法实现的变化检测方法，可从光学数据集中计算得到腐蚀变化的动力学过程与发展程度。电化学数据分析则通过考量观测到的信号幅值，以及其与光学观测到的腐蚀变化的对应关系展开。部分测试还提供了作为光学数据补充的扫描电子显微镜（SEM）图像。