Importance of corrosion, corrosion rates evaluation, thermodynamics of corrosion; Electrochemical mechanisms: Electrode potentials and corrosion tendency, polarization, mixed potential theory, Evan’s corrosion diagrams, potential-pH diagrams; Different forms of corrosion including microscopic and macroscopic forms. High temperature corrosion: Oxidation laws, selective oxidation, internal oxidation and catastrophic oxidation. Corrosion testing: design principles of corrosion evaluation of materials, accelerated corrosion tests, common experimental techniques for corrosion rate measurements including electrochemical methods. Different forms of corrosion and their control viz., uniform corrosion, galvanic corrosion, selective leaching, crevice corrosion, fill form corrosion, pitting corrosion, inter-granular corrosion, erosion corrosion, fretting damage, stress corrosion cracking, corrosion fatigue, hydrogen embrittlement and microbes induced corrosion. Elementary treatment of corrosion testing procedures, inhibitors and corrosion of steels. Corrosion protection methods -studies on electroplating, cathodic and anodic protection, protecting coatings, coatings for prevention of high temperature oxidation etc. Some case studies of real life corrosion.
Texts / Reference Books:
- M.G. Fontana, McGraw Hill, Singapore, 1987, Corrosion Engineering.
- Edward Arnold, London, 1983.A.S. Khanna, Introduction to Oxidation of Metals.
- Zaki Ahmed, Butterworth-Heinemann Publication, Principles of Corrosion Engineering and Corrosion Control.
|