Corrosion - Part I

The course will begin with emphasis on the importance of studying Corrosion of materials. Fundamentals of corrosion will be addressed from the angle of thermodynamics and kinetics of electrochemical phenomena. Different forms of corrosion related to materials and mixed potential theory will be discussed. Finally, electrochemical ways of protection of metals and alloys will be explained. INTENDED AUDIENCE : 1.Bachelor and Master students, 2.Industry people, where corrosion is a problem 3.PhD student working in corrosionPREREQUISITES : Chemical Thermodynamics, Phase transformation and Electrochemistry INDUSTRY SUPPORT : Oil companies, Chemical companies and Power sector

Week 1: Introduction: - Definitions -Different forms of Environmental degradation - Cost of Corrosion - Electrochemical Nature - AimsWeek 2: Thermodynamics of Corrosion - Process at Interface - Free Energy and Electrochemical Potential - EMF SeriesWeek 3: Thermodynamics of Corrosion - Nernst Relationship - Important Reactions - Cell Potential - Reference ElectrodesWeek 4: Thermodynamics of Corrosion - Pourbaix diagram and its important in metal corrosion - Calculation of Pourbaix diagram for Al, Cu, Ni and Fe
Kinetics of Corrosion - Current Density and Corrosion Rate - Corrosion Rate Expressions - Exchange Current Density
Week 5: Kinetics of Corrosion
- Polarization: - Activation, Concentration and Resistance polarization
Week 6: Mixed potential theory for understanding common corrosion of metals and alloys - Fundamental - Applications to Active metalsWeek 7: Mixed potential theory for understanding common corrosion of metals and alloys - Passivation - Application of mixed potential theory in passivating metals
Week 8: Corrosion protection: Electrochemical ways - Sacrificial anode - Impressed current cathodic protection - Anodic protection