Electrochemistry and corrosion engineeringLaajuus (7 ECTS)

Objective

Students will comprehend the laws dominating electrochemical cell reactions and their thermodynamic basis. They will fully understand the signifigance of electrochemical series as the basis of the mutual corrosion behaviour of materials. They will know how corrosion propagates in different materials and environments and which factors are governing the corrosion propagation. Students comprehend how corrosion prevention methods function in practice. They will know the main corrosion measuring methods and their utilisation in assesment of corrosion behaviour.
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Students will be able to apply their knowledge of electrochemistry in practical corrosion and electrodeposition cases and select an appropriate corrosion measuring method, to carry out common corrosion tests and to discuss the results.

Content

Thermodynamics of electrochemical reactions, cell and reaction potential, electrochemical series.

Kinetics of electrochemical reactions, conductivity of solutions.

Electrochemical basis of corrosion, Pourbaix diagram, passivation, Evans diagrams.

Corrosion resistance of metal alloys, principles of corrosion prevention, electrochemical corrosion prevention methods.

High-temperature corrosion.

Experimental arrangement of electrochemical measurements. Potential maesurements, voltametry, potentiostatic and galvanostatic methods. Interpretation of measurement results and utilisation of the results in assesment of corrosion behaviour.
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Physical basis of the electrode potential.

Impedance, CER and electrochemical noise methods.

Qualifications

Introduction to Corrosion and Corrosion Protection
Physical chemistry