NPTEL : NOC:Corrosion - Part I (Metallurgy and Material Science)

Co-ordinators : Dr. Kallol Mondal


Lecture 1 - Introduction to corrosion - I

Lecture 2 - Introduction to corrosion - II

Lecture 3 - Types and forms of corrosion

Lecture 4 - Uniform and Galvanic corrosion

Lecture 5 - Crevice and Pitting corrosion

Lecture 6 - Forms of corrosion: Explanation with Examples

Lecture 7 - Electrochemical Nature of Corrosion and its Thermodynamics

Lecture 8 - Thermodynamics aspects of corrosion - I

Lecture 9 - Thermodynamics aspects of corrosion - II

Lecture 10 - Thermodynamics aspects ofcorrosion - III

Lecture 11 - Relation Between Free Energy and Equilibrium Constant

Lecture 12 - Derivation of Nernst Equation

Lecture 13 - Standard Reduction Potential Series for Pure Metals

Lecture 14 - Reduction Potentials in Acidic and Neutral Solutions

Lecture 15 - Nernst equation in terms of pH

Lecture 16 - Limitations of Standard Reduction Potential Series of Pure Metals

Lecture 17 - Concentration Cell Formation and Galvanic Series

Lecture 18 - Examples of Concentration cell and Spontaneity of Corrosion Process

Lecture 19 - Spontaneity of Corrosion Process and Introduction to Pourbaix Diagram

Lecture 20 - Construction of Pourbaix Diagram

Lecture 21 - Construction of Pourbaix diagram for Ni-H2O system - I

Lecture 22 - Construction of Pourbaix diagram for Ni-H2O system - II

Lecture 23 - Construction of Pourbaix diagram for Ni-H2O system - III

Lecture 24 - Pourbaix diagram of Ni-H2O and AI-H2O

Lecture 25 - Inferences from Pourbaix diagram of Fe-H2O and AI-H2O

Lecture 26 - Estimation of Corrosion Rate - I

Lecture 27 - Estimation of Corrosion Rate - II

Lecture 28 - Estimation of Corrosion Rate - III

Lecture 29 - Exchange Current Density

Lecture 30 - Exchange Current Density and Standard Hydrogen Electrode

Lecture 31 - Electrical Double Layer and Polarization

Lecture 32 - Correlation between Current Density and Overvoltage

Lecture 33 - Introduction to Buttler-Volmer Equation

Lecture 34 - Derivation of Tafel Equation

Lecture 35 - Tafel Plot and Activation Polarization

Lecture 36 - Activation polarization, concentration polarization and total polarization

Lecture 37 - Summary of concentration polarization (CP) and introduction to mixed potential theory - I

Lecture 38 - Mixed potential theory - II

Lecture 39 - Understanding of mixed potential theory through the case studies and events of corrosion - I

Lecture 40 - Understanding of mixed potential theory through the case studies and events of corrosion - II

Lecture 41 - Understanding of mixed potential theory through the case studies and events of corrosion - III