Corrosion Overview
- By Usman Naseer
- 0
Course Description
Corrosion is defined as the gradual destruction of materials, usually metals, by chemical or electrochemical reaction with their environment. For engineers, corrosion represents a massive economic loss, estimated at 3–5% of GDP in industrialized nations. Understanding corrosion is essential before applying cathodic protection, because CP directly controls one specific part of the corrosion cell.
What you'll learn in this course?
Define corrosion in electrochemical terms and explain its fundamental requirements.
Identify and differentiate between at least eight common forms of corrosion.
Explain the basic principles of cathodic protection (CP) as a corrosion control method.
Describe the differences between galvanic (sacrificial) and impressed current cathodic protection systems.
Recognize the importance of CP in infrastructure, pipelines, and reinforced concrete.
Apply basic criteria for determining when CP is effective.
Course Curriculum
- Main Content: Introduction to Corrosion
- The Electrochemical Nature of Corrosion
- The Corrosion Cell (Mixed-Potential Theory)
- Thermodynamics: Pourbaix Diagrams
- Kinetics: Activation and Concentration Polarization
- Forms of Corrosion: Uniform Corrosion
- Galvanic Corrosion (Bimetallic Corrosion)
- Pitting Corrosion
- Crevice Corrosion
- Intergranular Corrosion
- Stress Corrosion Cracking (SCC)
- Hydrogen Embrittlement (HE) & Hydrogen-Induced Cracking (HIC)
- Erosion-Corrosion and Cavitation
- Microbiologically Influenced Corrosion (MIC)
- Corrosion Prevention Strategies Overview
- Introduction to Cathodic Protection (CP)
- How Cathodic Protection Works (Electrochemistry)
- Two Main Types of Cathodic Protection
- Galvanic (Sacrificial) Cathodic Protection: Details
- Impressed Current Cathodic Protection (ICCP): Details
- CP Criteria: The -850 mV Standard
- 100 mV Polarization Criterion
- Potential Measurements and IR Drop Errors
- CP for Pipelines (Buried Steel)
- CP for Offshore Structures
- CP for Reinforced Concrete
- Calcareous Deposits and CP
- Coatings Combined with CP
- Stray Current Corrosion Interference
- Over-Protection and Its Consequences
- Design Considerations for CP Systems
- Monitoring and Testing of CP Systems
- Common Failures of CP Systems
- Cost-Benefit Analysis of CP
- Standards and Regulations for CP
- Case Study: Pipeline CP Failure in Alaska
- Case Study: Offshore Platform Galvanic CP Design
- Emerging Trends in CP
- Limitations of Cathodic Protection
- Summary
- Corrosion Overview
Usman Naseer
3 
Course includes:
Levelintermediate
Duration180 minutes
Lessons41
Quizzes0
CertificationsYes
Enrolled0