Corrosion – Part II
The course will begin with recap of electrochemical polarization and mixed potential theory. Corrosion events will be discussed on the basis of mixed potential theory. Moreover, passivity and mixed potential theory will also discussed. The course will also concentrate on different corrosion protection methods, various test methods to understand corrosion and stress effect in combination of corrosion of metals and alloys. Finally, it will discuss oxidation of metals and alloys.
Week 1: Introduction: – Electrochemical Polarization: Activation and Concentration polarization and Mixed Potential Theory (Recap)
Week 2: Corrosion events and Mixed Potential Theory – Understanding of corrosion event on the basis of mixed potential theory: Activation controlled and concentration controlled corrosion
Week 3: Corrosion events and Mixed Potential Theory – Understanding of corrosion event on the basis of mixed potential theory:Activation controlled and concentration controlled corrosion
Week 4: Protection of Metals and Alloys and Mixed Potential Theory – Cathodic protection: Sacrificial anode and Impressed current cathodic protection (ICCP) – Industrial application and calculations
Protection of Metals and Alloys: Part II – Metal composition and structure -Environmental control over corrosion – Coating – Inhibitor
Week 5: Corrosion experiments – Potentiodynamic test – Galvanostatic test – Linear polarization – Immersion test – Salt fog test
Week 6: Stress effect on corrosion – Stress corrosion cracking (SCC) – Corrosion fatigue – Hydrogen embrittlement
Week 7: Oxidation of Metals and Alloys – Pilling Bedworth Ratio – Thermodynamics of oxidation: Ellingham diagram
Week 8: Oxidation of Metals and Alloys – Kinetics of oxidation – Effect of doping on the oxidation behavior.