Principles of Corrosion

• • Introduction to corrosion, cost of corrosion, industries affected by corrosion
  • Corrosion cells and basic definitions
  • Corrosion thermodynamics (Nernst equation, Pourbaix diagram)
  • Forms of corrosion (uniform, galvanic)
  • Forms of corrosion (crevice, pitting corrosion)
  • Forms of corrosion (erosion corrosion, stress corrosion cracking, hydrogen embrittlement)
  • Electrochemical kinetics (Butler-Volmer equation, Stern-Geary)
  • Electrochemical kinetics (Tafel plot, Evan's diagram)
  • Corrosion monitoring techniques (Laboratory and field devices)
  • Corrosion prevention by impeding corrosion cell (Coating)
  • Corrosion prevention by changing thermodynamic (CP)
  • Corrosion prevention by influencing electrochemical kinetics (inhibitor)

Equivalent subjects

You cannot enrol in this subject if you have successfully completed any of the following subject(s) because they are considered academically equivalent:

• CUR-ENR500C-Principles of Corrosion

Special requirements

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In this subject, students will learn reduction and oxidation reactions (electrochemical process) which forms the fundamental of corrosion. Knowledge on electrochemistry will extend to corrosion cells, corrosion potentials, thermodynamics and kinetics of corrosion. The focus will be on the application of Nernst equation (thermodynamics) to determine the likelihood of corrosion and the application of Butler-Volmer equations (kinetics) to determine corrosion rate. Different corrosion behaviour of various metals including passivity of passive alloys will be discussed. Various forms of corrosion such as localised corrosion, uniform corrosion, stress corrosion cracking, etc., will be investigated. The subject also covers corrosion testing, monitoring techniques, and prevention plans.

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• Report (20%)
• Case Study (30%)
• Final Invigilated Examination (50%)