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Environmental Degradation of Materials

Environmental Degradation of Materials. Instructor: Prof. Kallol Mondal, Department of Materials Science and Engineering, IIT Kanpur. The course will begin with emphasis on the importance of studying environmental degradation of materials. Fundamentals of environmental degradation of materials will be addressed beginning with thermodynamics and kinetics of electrochemical phenomena. Different forms of corrosion related to materials, environment and stress will be familiarized. Corrosion occurring in major environments will be treated. Experimental methods to assess and predict the rate of corrosion will be introduced. Fundamentals of high temperature oxidation of metals will be treated. This will be followed by principles and methodology of corrosion control. Degradation of various material classes such as polymers, composites and electronic materials will be discussed. In the end, future outlook in this important field of engineering will be presented. (from nptel.ac.in)

Lecture 15 - Mixed Potential Theory, Explanation of Corrosion Events on the Basis of Mixed ...


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Lecture 01 - Introduction, Basic Definition of Corrosion
Lecture 02 - Forms of Degradation, Thermodynamics of Corrosion
Lecture 03 - Thermodynamics of Corrosion
Lecture 04 - Thermodynamics of Corrosion (cont.)
Lecture 05 - Thermodynamics of Corrosion, Electrochemical Series, Concentration Cell
Lecture 06 - Reduction Potential Series, Pourbaix Diagram
Lecture 07 - Pourbaix Diagram
Lecture 08 - Pourbaix Diagram (cont.)
Lecture 09 - Pourbaix Diagram, Kinetics of Corrosion
Lecture 10 - Kinetics of Corrosion, Rate Expression, Solved Problems
Lecture 11 - Solved Problems on the Corrosion Rate, Exchange Current Density
Lecture 12 - Exchange Current Density, Polarization, Activation Polarization, Tafel Equation
Lecture 13 - Activation Polarization, Concentration Polarization
Lecture 14 - Concentration Polarization, Mixed Potential Theory
Lecture 15 - Mixed Potential Theory, Explanation of Corrosion Events on the Basis of Mixed Potential Theory, Galvanization
Lecture 16 - Explanation of Corrosion Events on the Basis of Mixed Potential Theory, Effect of Impurity, Effect of Area Factor
Lecture 17 - Explanation of Corrosion Events on the Basis of Mixed Potential Theory, Effect of Area Factor, Concentration Polarization, Passivation
Lecture 18 - Passivation and Mixed Potential Theory
Lecture 19 - Passivation and Mixed Potential Theory (cont.)
Lecture 20 - Different Corrosion Protection Mechanisms, Electrochemical Ways of Protection, Cathodic Protection
Lecture 21 - Cathodic and Anodic Protection
Lecture 22 - Anodic Protection, Forms of Corrosion, Factors of Corrosion
Lecture 23 - Forms of Corrosion, Uniform Corrosion, Galvanic Corrosion
Lecture 24 - Galvanic Corrosion
Lecture 25 - Crevice Corrosion
Lecture 26 - Crevice Corrosion, Pitting Corrosion
Lecture 27 - Pitting Corrosion, Intergranular Corrosion
Lecture 28 - Intergranular Corrosion, Dealloying
Lecture 29 - Dealloying, Erosion Corrosion
Lecture 30 - Erosion Corrosion, Cavitation
Lecture 31 - Cavitation, Fretting Corrosion, Corrosion Cracking
Lecture 32 - Stress Corrosion Cracking: Mechanisms (Dissolution Controlled)
Lecture 33 - Stress Corrosion Cracking: Mechanisms (Cleavage Controlled), Factors Affecting SCC, Hydrogen Embrittlement, Corrosion Fatigue
Lecture 34 - Biologically Influenced Corrosion, Liquid Metal Attack
Lecture 35 - Corrosion Protection, Change of Materials, Effect of Design of Component
Lecture 36 - Corrosion Protection, Change of Materials, Inhibitors, Coatings
Lecture 37 - Oxidation and Hot Corrosion, Pilling Bedworth Ratio, Thermodynamics of Oxidation
Lecture 38 - Thermodynamics of Oxidation, Ellingham Diagram, Oxidation Kinetics and Laws
Lecture 39 - Oxide Structure and Oxidation
Lecture 40 - Hot Corrosion, Corrosion Testing and Failure Analysis, Linear Polarization
Lecture 41 - Degradation of Composites, Polymers and Ceramics, Corrosion and Society