Corrosion Engineering (PM804)
Course Name:
Corrosion Engineering
Programme:
Semester:
Category:
Credits (L-T-P):
Course modules and teaching hours:
Definition of corrosion, corrosion damage, standard expressions for corrosion rate, classification of corrosion, electrochemical aspects, electrochemical reactions, Pourbaix diagrams, mixed potential theory, polarization, Evan's diagrams, passivity, effects of environment - oxygen and oxidizers, temperature, corrosive concentration, cathode/anode area ratio, galvanic coupling using mixed potential theory. Forms of corrosion - uniform, galvanic, crevice, intergranular, pitting, selective leaching, erosion, stress corrosion, corrosion fatigue, fretting. Corrosion rate
measurements - Tafel and linear polarization, AC impedance, small - amplitude cyclic voltammetry. Corrosion testing. Interpretation of results, Corrosion protection: materials selection, alternative environment, design, cathodic and anodic protection, coatings, High - temperature corrosion: mechanisms and kinetics, high - temperature materials.