National Institute of Technology Rourkela

राष्ट्रीय प्रौद्योगिकी संस्थान राउरकेला

ଜାତୀୟ ପ୍ରଯୁକ୍ତି ପ୍ରତିଷ୍ଠାନ ରାଉରକେଲା

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Syllabus

Course Details

Subject {L-T-P / C} : MM3501 : Corrosion and Degradation of Materials { 3-0-0 / 3}

Subject Nature : Theory

Coordinator : Archana Mallik

Syllabus

Module 1 :

MODULE – I: Introduction and Principles (3 hours)
Definition of corrosion, Cost of corrosion, Classification of corrosion, Electrochemical aspect of corrosion, three principles of corrosion

Module 2 :

MODULE – II: Thermodynamics (5 hours)
Basic thermodynamics of corrosion (Concept of free energy, Cell potential, EMF and Galvanic series, Relationship between free energy and cell potential, Nernst equation, Application of thermodynamics to corrosion, Pourbaix diagram),

Module 3 :

MODULE – III: Corrosion Kinetics (5 hours)
Expression for corrosion rate, Exchange current density, Activation polarization, Concentration polarization, Combined polarization, Mixed potential theory, Mixed electrodes, Passivity, Oxidation and hot corrosion of materials at high temperature, Kinetics of oxidation, Pilling-Bed worth ratio.

Module 4 :

MODULE – IV: Experimental procedures (6 hours)
Immersion testing, Measurement of open circuit potential, Potentiodynamic polarization scan (Taffel’s plot), Linear polarization, Electrochemical Impedance Spectroscopy,

Module 5 :

MODULE – V: Forms of Corrosion (7 hours)
Eight forms of corrosion (Uniform attack, Galvanic corrosion, Crevice corrosion, Pitting, Inter-granular corrosion, Selective leaching, Erosion corrosion, Stress corrosion), Hydrogen damage,

Module 6 :

MODULE – VI: Prevention of Corrosion (6 hours)
Selection of proper materials, Design rules and its modifications, Alloying additions, Environmental conditioning, Cathodic and anodic protection, Organic and inorganic coating, Surface engineering, Inhibitors and passivators.

Course Objective

1 .

The scientific principles and methods that underlie the cause, detection, measurement, and prevention of many metal corrosion problems in engineering practice

2 .

Monitoring techniques and mitigation strategies required to assess internal and external corrosion

3 .

Develop and manage corrosion control programs with corrosion data interpretation, analysis, and integration

4 .

Understand the criteria for determining corrective action for high-level corrosion problems within various industrial systems

Course Outcome

1 .

The need of the course, definition and basic principles of corrosion

2 .

Principles of thermodynamic interpretation of any form of corrosion

3 .

The guiding kinetics of general as well as specific corrosion phenomena

4 .

Experimentation, Corrosion data interpretation, analysis, and integration

5 .

Understanding, principles and analysis of eight dominant forms of corrosion

6 .

Mitigation strategies and monitoring techniques required to assess internal and external corrosion in conventional and industrial systems

Essential Reading

1 .

D A Jones, Principles and Preventions of corrosion, Pearson , Comprehensive approach to scientific principles and methods that underlie the cause, detection, measurement and prevention of many metal corrosion problems engineering practices.

2 .

R. W. Revie and H. H. Uhlig, Corrosion and Corrosion Control: An Introduction to Corrosion Science and Engineering, Wiley , Comprehensive approach to scientific principles and methods that underlie the cause, detection, measurement and prevention of many metal corrosion problems engineering practices.

Supplementary Reading

1 .

Philip A. Schweitzer, Fundamentals of Corrosion: Mechanisms, Causes, and Preventative Methods, CRC Press , The purpose of this book is to provide engineers, designers, architects, and<br />all those involved with the selection of construction materials some basic<br />information concerning the causes, prevention, and control of corrosion.

Journal and Conferences

1 .

Corrosion Science: https://www.sciencedirect.com/journal/corrosion-science

2 .

Electrochimica Acta: https://www.sciencedirect.com/journal/electrochimica-acta