Unit 1

Basic principles: Free energy concept of corrosion – different forms of corrosion – Thermodynamic & Kinetic aspects of corrosion: The free energy criterion of corrosion possibility – Mechanism of Electrochemical corrosion – Galvanic and Electrochemical series and their significance.

Corrosion Control: Materials selection – metals and alloys – metal purification – non metallic – changing medium.

Unit 2

Anodic and cathodic protection methods – Coatings – metallic and other inorganic coatings – organic coatings – stray current corrosion – cost of corrosion control methods.

Corrosion protection by surface treatment: CVD and PVD processes – Arc spray – Plasma spray – Flame spray.

Corrosion Inhibitors: Passivators – Vapour phase inhibitor.

Unit 3

Stress and fatigue corrosion at the design and in-service condition – control of bacterial corrosion.

Corrosion protection: Automobile bodies – engines – building construction.

• Fontana and Mars G, “Corrosion Engineering”, 3^rd edition, McGraw Hill, (1987).
• Uhlig H. H. and Reviees R. W., “Corrosion and its Control”, Wiley, (1985).

Reference(s)

• ASM Metals Handbook, “Surface Engineering”, Vol. 5, ASM Metals Park, Ohio, USA, (1994).
• ASM Metals Handbook, “Corrosion”, Vol. 13, ASM Metals Park, Ohio, USA, (1994).
• Brain Ralph, “Material Science and Technology”, CRC Series, Boston, New York.

Evaluation Pattern

Course Outcomes

• CO1: Development of skill in identifying the nature and type of corrosion
• CO2: Understanding the mechanism of various types of corrosion
• CO3: Analysing the problem and find out a solution to combat corrosion in any sort of environment.

CO – PO Mapping