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Expt 8 - Electrochemistry Corrosion.docx - Jessica Zhu Lab...

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Jessica ZhuLab Partners: Faith, Mengdi, GabrielleChem 105B Lab15 April 2020TAs: Yichen and AllenAnalyzing CorrosionPart I:1. Stratton Hypothesis:In an impressed current cathodic system, external voltage is used to override the naturalcorrosion of steel before other metals, as the external power source replaces the electrons givento oxygen. However, in the case of the Stratton, it is possible that the amount of external voltageprovided was not enough to override the corrosion of steel or that the power source providingthis voltage was not properly working or disconnected. As the steel hull is in contact with a metalthat has a higher reduction potential, such as platinum, this causes galvanic corrosion, makingthe steel corrode even faster than normal.Part II:2. Citations:Angst, U.M.; Martinelli-Orlando, F.;Shi, W. Corrosion Behavior of Carbon Steel in Alkaline,Deaerated Solutions: Influence of Carbonate Ions.J. Electrochem. Soc.2020,167(6).Caulfied, P. How can climate change impact Canadian concrete infrastructure?Journal ofCommerce, July 26, 2019. Retrieved from Google. news/infrastructure/2019/07/can-climate-change-impact-canadian-concrete-infrastructure.3. Summary:In the article from the Journal of Electrochemical Society, research on corrosion rate ofsteel from carbonate and bicarbonate ions is analyzed and discussed. The results show that

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Warshel
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