Correlation of Mechanical Deformations and Corrosion Resistance on Aluminum Alloys by Electrochemical-Impedance Spectroscopy Testing
Mentor 1
Benjamin C Church
Location
Union Wisconsin Room
Start Date
27-4-2018 1:00 PM
Description
Aluminum alloys are prone to rapid corrosion after being heated to high temperatures. Differences in the deformations of the metal leads to differences in the metal’s susceptibility to corrosion at these temperatures. First, to mimic the high temperatures, the aluminum samples with different deformations are individually put into a furnace. This will cause the aluminum alloys to acquire a layer of corrosion, called an oxide layer. Further, to test the oxide, an electrochemical-impedance spectroscopy(EIS) test is enacted. This test indicates the electrical resistance of the aluminum which may change with its oxide layer, as oxide is non-conductive. The EIS test will be used to make bode plots that show change in electrical impedance with changing frequencies. The goal of this experiment is to see if a correlation between the deformations of the aluminum and its corrosion resistance can be measured. Furthermore, if the relationship can be measured, a procedure to properly guide future research in aluminum corrosion testing is expected. If the results are not measurable, a detailed analysis of the parameters to measuring the corrosion is expected.
Correlation of Mechanical Deformations and Corrosion Resistance on Aluminum Alloys by Electrochemical-Impedance Spectroscopy Testing
Union Wisconsin Room
Aluminum alloys are prone to rapid corrosion after being heated to high temperatures. Differences in the deformations of the metal leads to differences in the metal’s susceptibility to corrosion at these temperatures. First, to mimic the high temperatures, the aluminum samples with different deformations are individually put into a furnace. This will cause the aluminum alloys to acquire a layer of corrosion, called an oxide layer. Further, to test the oxide, an electrochemical-impedance spectroscopy(EIS) test is enacted. This test indicates the electrical resistance of the aluminum which may change with its oxide layer, as oxide is non-conductive. The EIS test will be used to make bode plots that show change in electrical impedance with changing frequencies. The goal of this experiment is to see if a correlation between the deformations of the aluminum and its corrosion resistance can be measured. Furthermore, if the relationship can be measured, a procedure to properly guide future research in aluminum corrosion testing is expected. If the results are not measurable, a detailed analysis of the parameters to measuring the corrosion is expected.
