Corrosion, 1. Electrochemical
First published: 23 July 2015
Abstract
The article contains sections titled:
1. | Introduction |
2. | Basic Electrochemistry |
2.1. | Electrochemical Equilibrium |
2.2. | Electrochemical Kinetics |
2.2.1. | Corrosion Elements |
2.2.2. | Mixed Electrode and Mixed Potential |
2.2.3. | Overpotential and Polarization |
2.3. | Current Density – Potential Curves |
2.4. | Hydrogen Overpotential and Acid Corrosion |
2.5. | Oxygen Overpotential and Oxygen Corrosion |
2.6. | Protective Film Formation and Passivity |
3. | Types of Electrolytic Corrosion |
3.1. | Uniform and Nonuniform Surface Corrosion |
3.2. | Forms of Localized Corrosion without Applied Mechanical Stress |
3.2.1. | Pitting Corrosion |
3.2.2. | Crevice Corrosion |
3.2.3. | Selective Corrosion |
3.2.3.1. | Intergranular Corrosion |
3.2.3.2. | Spongiosis |
3.2.3.3. | Dezincification |
3.2.3.4. | Line- and Layer-Type Corrosion |
3.3. | Forms of Local Corrosion under Mechanical Stress |
3.3.1. | Stress Corrosion Cracking |
3.3.1.1. | Unalloyed and Low-Alloy Steels |
3.3.1.2. | Stainless Steels |
3.3.1.3. | Nonferrous Metals |
3.3.1.4. | Special Types of Stress Corrosion Cracking |
3.3.1.5. | Hydrogen-Induced Cracking at Low Temperatures |
3.3.1.6. | Hydrogen Corrosion at Elevated Temperatures |
3.3.2. | Corrosion Fatigue |
3.3.3. | Differentiation Between Types of Corrosion Cracking |