Students will investigate how rates of chemical reaction rates - galvanic corrosion - vary among different metal types with and without the addition of sacrificial metal. This is a redox reaction example suited well for upper-level students. Students will learn how anodes protect E/V Nautilus and the ROVs Hercules and Argus from corrosion.
Objectives & learning outcomes
Following this activity, students will:
- understand and explain the concept of corrosion, its causes, and discuss methods used to prevent corrosion.
- understand what sacrificial anodes are and how they function.
- understand and explain why sacrificial anodes are vital to the operation of Exploration Vessel Nautilus and its ROVs Hercules and Argus.