Start Date : 23 Feb ,2025
End Date : 27 Feb ,2025
Duration : 5 Days
Overview:
This corrosion course covers fundamental aspects of corrosion control and its prevention. The course will enable beginners to establish a solid foundation in corrosion before moving on to advanced topics. Exercises, hands-on practical sessions and virtual experiments throughout the course will help participants understand the basic concepts and fundamentals important to corrosion.
Course Objectives:
Understand why and how corrosion occurs
Know how to control and prevent corrosion
Gain an understanding of corrosion ramifications in oil production operations
Recognize the various forms of corrosion attack
Carry out a corrosion failure analysis
Utilize the most appropriate method for corrosion control
Adopt the most appropriate monitoring techniques and
Utilize the current information sources including current corrosion software
Course Content:
1- Introduction
Definition of corrosion
Corrosion in action: examples of corrosion
Liabilities due to corrosion
Basic concepts in corrosion
Primer in chemistry and electrochemistry
Understanding electrochemical cells
2- Why Do Metals Corrode? The Driving Force for Corrosion
Thermodynamics
Faraday’s Law
Electrode potentials
Reference electrodes
Electromotive force (EMF) series vs. galvanic series
Nernst equation
Pourbaix diagram (potential - pH diagram)
Passivity
3- Kinetics: The Rate of Corrosion
Polarization
Rate of reaction and rate constant
Anodic and cathodic current densities
Exchange current density
The mixed potential theory
E-log(i) Evans diagram
Tafel Equation and Tafel plot for corrosion rate determination
Linear polarization and Stern-Geary Equation
Type of polarization and rate-controlling steps
Concentration polarization and the importance of dissolved oxygen
Effect of oxidizer concentration on the rate of corrosion
Effect of velocity on the rate of corrosion
Area effect
Depolarizers and Depolarization
4- Different Forms of Corrosion: Mechanisms, Recognition and Prevention
General attack/uniform corrosion
Galvanic corrosion/de‐alloying
Pitting corrosion
Crevice corrosion
Filiform corrosion
Intergranular corrosion/exfoliation
Environmental cracking
Liquid metal embrittlement
Hydrogen damage
Corrosion fatigue
Flow assisted corrosion
Fretting corrosion
High temperature corrosion
5- Practical Corrosion Cells Important to Corrosion Diagnosis
Galvanic cell
Concentration cell
Active/passive cell
Thermogalvanic cell
Stress cell
6- Corrosion in Specific Environments
Corrosion in atmosphere
Corrosion in waters
Corrosion in soil
Corrosion in concrete
Corrosion in high temperature environments
7- Methods for Corrosion Control and Prevention
Materials selection and design
Protective coatings and linings
Cathodic protection and anodic protection
Modification of environment (chemical treatment)
Corrosion testing and monitoring
Targeted Audience:
Corrosion practitioners, designers, technical managers, inspection and maintenance engineers, quality control personnel and those involved in failure analysis.
