Learning Outcomes

Features and Cost of Corrosion

Process of Material Degradation

Types and Forms of Corrosion

Uniform and Galvanic Corrosion

Crevice and Pitting Corrosion

Lesson Summary

In this module, you will be introduced to the concept of corrosion, as well as the various processes that can cause corrosion. You will also be introduced to the different types of corrosion which are uniform, galvanic, crevice, and pitting corrosion, as well as the impact of each type of corrosion.

Forms of Corrosion with Examples

Electrochemical Nature of Corrosion

Thermodynamics Aspects of Corrosion

Free Energy in Corrosion

Relationship Between Delta G and Equilibrium Constant

In this module, you will be introduced to the different forms of corrosion, as well as the electrochemical nature of corrosion and its thermodynamics. You will also be introduced to the thermodynamics aspects of corrosion, the concept of free energy change, as well as the process of entropy change.

Electrochemical Nature and Thermodynamics of Corrosion - Course Assessment

Analyze the electrochemistry and causes of corrosion in this free science course.

Electrochemical Nature and Thermodynamics of Corrosion

This free online course on the electrochemical nature and thermodynamics of corrosion teaches you about the concept of ‘corrosion’, as well as the various processes that can cause corrosion. You will also learn about the different forms of corrosion (uniform, galvanic, crevice, pitting, erosion, and stress-assisted corrosions), as well as how they affect the environment.

Recap of Electrochemical Polarization

Activation and Concentration Polarization

Tafel Equation and Tafel Slope

Exchange Current Density in Anodic and Cathodic Polarization

Interaction between Concentration Polarization and Mixed Potential Theory

In this module, you will be introduced to the two important aspects of electrochemical reactions, as well as their interactions with mixed potential theory. You will also be introduced to the concepts of Tafel equation, cathodic and anodic reactions, as well as how to plot appropriate graphs representing the reactions and the formation of the Helmholtz double-layer.

Introduction to Corrosion Processes based on Mixed Potential Theory

Evolution of Microstructure and Optical Microscope

Depolarization Effect

Equilibrium Potentials

Exchange Current Density and Galvanic Contacts

In this module, you will be introduced to the evolution of microstructure in pearlite, the concept of an optical microscope, as well as their formation. You will also be introduced to the concepts of etching, equilibrium potentials, corrosion processes, galvanic coupling and depolarization effects.

Effect of Exchange Current Density on Corrosion Rate of an Active Metal

Area Effect of the Cathodic and Anodic Component

Area Effect on the Current and Corrosion Rate

Corrosion Processes on the basis of Mixed Potential Theory: Numerical Analysis

Galvanic Coupling between Two Active Metals

In this module, you will be introduced to the different values of half-cell, anodic and cathodic reactions, as well as the parallel line of individual Tafel lines for hydrogen evolution reaction on zinc and platinum. You will also be introduced to the area effect on the corrosion of an active component, as well as the galvanic coupling between two active metals in an electrolyte.

Theory of Sacrificial Anode Steel Objects Protection

Effect of Two Active Metals on Fe–Corrosion

Corrosion of Metals in Controlled Concentration

Effect of Velocity on Corrosion Rate

Numerical Analysis in Polarization

In this module, you will be introduced to the two segments of cathodic protection which are the sacrificial anode and impressed current cathodic protection, as well as the effect of magnesium and zinc on iron corrosion when they are galvanically coupled. You will also be introduced to how corrosion current density can be affected in both activation, as well as concentration controlled environment. The relationship between velocity and corrosion rate will also be highlighted in this module.

Diploma in Electrochemical Reactions in Corrosion  - First Assessment

Numerical Problems and Passivation

Theory of Passivation

Features and Elements of Passivation

Interaction between Passivation and Pourbaix Diagram

Changes in Current Density

In this module, you will be introduced to the features, elements and types of passivation, as well as the interaction between polarization and the Pourbaix diagram. You will also be introduced to Faraday's two-staged experiment on converting iron with HNO3 solution from the passive to the active stage, as well as the ennoblement of metal in relation to passivity.

Passivity in Mixed Potential Theory

Interaction of Cathodic Polarization with an Active-Passive Metal

Interaction of Anodic Polarization with an Active-Passive Metal

Passivation and Mixed Potential Theory - Case Study

The Effect of Concentration Polarization of Cathodic Reaction

In this module, you will be introduced to the interaction of cathodic and anodic polarization plots for a system in passivation mode, as well as the effect of the interaction of cathodic polarization at different plots. You will also be introduced to the different criteria for stable passivity, complete passivity and primary passivity in relation to the anodic and cathodic polarization line.

Effect of Galvanic Coupling

Anodic Protection of an Active-Passive Metal

Linear Polarization and Relative Corrosion Resistance

Oxidation of Metals and Alloys

Different Stages of Oxidation and Pilling-Bedworth Ratio

In this module, you will be introduced to the anodic protection of active-passive metal due to the lesser current flow in the circuit for the same degree of protection, as well as the relative corrosion response of a metal in an electrolyte. You will also be introduced to the different stages of oxidation, as well as how metals react with gaseous oxygen to form metal oxides.

Pilling Bedworth Ratio of different Metal Oxides

Thermodynamics of Oxidation

Construction of Ellingham Diagram

Ellingham Diagram - Plotting Without Detailed Calculation

Kinetics of Oxidation

Oxide Structure and Oxidation Mechanism

In this module, you will be introduced to the calculation of the Pilling-Bedworth Ratio in different metals, as well as the fundamental aspects of oxidation which are thermodynamics of oxide formation and kinetic analysis of oxide growth. You will also be introduced to the plotting of the Ellingham diagram, as well as how the oxidation process occurs in metal deficient diffusion of the interstitial cation.

Diploma in Electrochemical Reactions in Corrosion  - Second Assessment

Diploma in Electrochemical Reactions of Corrosion  -- Course Assessment

Study electrochemical reactions in corrosion, as well as the oxidation mechanisms of corrosion, in this free course.

Diploma in Electrochemical Reactions in Corrosion

Two important aspects of electrochemical reactions are covered in this free online course. You will learn about the features and elements of passivation, as well as the interaction between polarization and the Pourbaix diagram. You will also be able to explain the calculation of Pilling-Bedworth ratio in different metals, as well as plot the Ellingham diagram. Start this course today to improve your understanding of electrochemical reactions.

Introduction to Batteries

Parts of a Battery

Operating Principles of Battery

Types of Batteries

Other Types of Batteries

Introduction to Batteries - Learning Summary

In this module, you will learn about the various parts that make up a functional battery. This module will also introduce the most common types of batteries in use today and their applications.

Factors Affecting Battery Performance

Battery Life Extension Techniques

Batteries Connection - Part 1

Batteries Connection - Part 2

In this module, we will discuss the performance of batteries, their life extension techniques, factors affecting battery life, and methods of battery life extension. We will also explore the methods of battery connection, their advantages and disadvantages, and finally, the various applications of battery.

Uses of Batteries in the Renewable Energy Industry

Uses of Battery in the Aviation Industry

Uses of Battery in the Telecommunication Industry

Uses of Batteries in the Automotive Industry

Uses of Battery in the Marine Industry

In this module on the uses of batteries - part 1, you will learn how batteries are being used in different industries and their individual applications. This module will cover the various uses of batteries in renewable energy, aviation industry, telecommunications, automobile and marine industries.

Uses of Batteries in the Defense Industry

Uses of Batteries in the Medical Industry

Uses of Batteries in the Consumer Electronics Industry

Uses of Batteries in the Railway Industries

Uses of Batteries in the Oil and Gas Industry

In this module on the uses of batteries part 2, you will learn how batteries are being used in different industries and their individual applications. This module will cover the various uses of batteries in defense, medical, consumer electronics, railway, and finally oil & gas industries.

Battery Inspection

Batteries Testing

Common Faults of a Battery

Battery Safety

Battery Maintenance Tips

In this module, you will learn about the importance of battery maintenance, the methods to follow to maintain batteries, and the benefits of maintaining our batteries. It will also cover the testing, identifying common faults, safety aspects, and workable maintenance tips of different types of batteries despite the industries it is used.

Battery Maintenance - Course Assessment

Learn about the different types of batteries and how to carry out maintenance in this free online course

Battery Maintenance

In this course, you will learn to select the correct battery for use in any backup system you need to install and its connection. You will understand how to make basic calculations to choose the right number of batteries to give the expected duration of backup power and will learn how to set up a backup system. At the end of the course, you will be able to inspect and maintain individual batteries and those connected to a battery bank.

Battery Technologies

Electrochemical cells

Salt  Bridge

Electrochemical series

This module explains what batteries and electrochemical are, their constructions and their workings. In this module, you will see the different types of batteries, their compositions, and the various ways in which these batteries work.

Single Electrode Potential (SEP) - Learning objectives

Emf of a Cell

Half-Cell Potential

Basics of Batteries

Battery Efficiencies

Electromotive Force

This module explains what single electrode potential is all about, its constructions and workings. In this module, you will learn about terms such as Half-cell potential, thermodynamics of a reversible cell.

Primary and Secondary cells

Ni-CD Batteries and Lithium Batteries

Batteries Performance and Maintenance

Solar Battery

Fuel Cells and Humidifiers

Safety Precautions

In this module: Battery Performance and Maintenance, you will be introduced to topics such as primary and secondary cells. You will learn about Ni-CD batteries, solar batteries and how they work. The module will also discuss fuel cells in batteries and safety percautions

Battery Technologies - End of Course Assessment

Learn about battery technologies, maintenance, performance & safety precautions in this free online course

This free online course will teach you about the science behind batteries and their function. We will take you through the different battery types and how they work. Learn about safety equipment and the safety precautions of battery technologies you need to know to guard against battery failure. You'll also learn about solar batteries, their components, and their benefits. So why wait? Power up your knowledge today!

Coursera Announces Layoffs, Stock Plunges Despite $100M Milestone

Coursera Q1 2022: $120.4M Revenue, $38.3M in Losses, 16K Degree Students

Coursera’s 2025 Strategy: Focusing on Campus, Scaling Back Degrees

FutureLearn’s 2021: Year in Review

6 Best Node.js Courses in 2025

7 Best Free Haskell Courses for 2025

Duolingo is Shutting Down Its Only Classroom Tool

Udemy Announces Layoffs Without Saying ‘Layoffs’

10 Best Free Rust Courses for 2025: Write Memory-Safe Code

Open edX Conference 2024: Program & Speakers

Beginning to Program: Review of CS50 Scratch Course

10 Best Programming Courses for 2025

Duolingo’s Reddit Community Revolts: ‘No Más’ to Unpaid Support

New CEO, New Structure: Greg Hart Reshapes Coursera’s Reporting

Harvard Launches Two New Free Certificate Courses

9 Best GIS Courses for 2025: Navigating Spatial Data