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NPTEL

Corrosion - Part II

NPTEL and Indian Institute of Technology Kanpur via Swayam

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Overview

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.

INTENDED AUDIENCE: 1.Bachelor and Master students 2.Industry people, where corrosion is a problem 3.PhD student working in corrosion
PREREQUISITES: Chemical Thermodynamics, Phase transformation and Electrochemistry
INDUSTRY SUPPORT: Oil companies, Chemical companies and Power sector, construction

Syllabus

COURSE LAYOUT

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 corrosionWeek 3: Corrosion events and Mixed Potential Theory - Understanding of corrosion event on the basis of mixed potential theory:Activation controlled and concentration controlled corrosionWeek 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 - InhibitorWeek 5: Corrosion experiments - Potentiodynamic test - Galvanostatic test - Linear polarization - Immersion test - Salt fog testWeek 6: Stress effect on corrosion - Stress corrosion cracking (SCC) - Corrosion fatigue - Hydrogen embrittlementWeek 7: Oxidation of Metals and Alloys - Pilling Bedworth Ratio - Thermodynamics of oxidation: Ellingham diagramWeek 8:Oxidation of Metals and Alloys - Kinetics of oxidation - Effect of doping on the oxidation behavior

Taught by

Prof. Kallol Mondal

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