CorroZone: Fundamentals of Cathodic Protection

Full courses here Traces what happens when external current is applied to a corroding surface — how the anodic and cathodic rates rebalance, how cathodic polarisation shifts the potential negative, and how this yields three practical states: underprotection, adequate protection, and overprotection. What you'll learn Explain how applying external current raises the cathodic rate and shifts the pote...

Full courses here Examines free corrosion — the natural, unprotected state of a metal in an electrolyte — covering the simultaneous anodic and cathodic reactions, the corrosion potential and current density they settle at, and the environmental and material factors that govern the rate of attack. What you'll learn Describe the simultaneous anodic (metal dissolution) and cathodic (oxygen reduction...

Full courses here Explains what cathodic protection is at the electrode level — shifting a metal's potential negative to suppress dissolution — and contrasts the two ways of doing it: self-powered sacrificial anodes and externally powered impressed current systems. What you'll learn Explain how a metal corrodes via a corrosion cell and settles at its mixed potential, E-corr Describe cathodic polar...

Full courses here Introduces Section 1 by placing cathodic protection among corrosion-control strategies, explaining why corrosion matters, contrasting the sacrificial anode and impressed current approaches, and mapping the four sections ahead. What you'll learn Explain what cathodic protection is and why it's effective at the electrochemical level Place cathodic protection among the broad corrosi...

Full courses here A big-picture tour of the whole cathodic protection course — how its four sections build from the fundamentals, through core CP assessment concepts and current distribution, to design principles. What this course covers A comprehensive, end-to-end course on cathodic protection (CP), organised into four sections that build on each other. Section One, Fundamental Concepts, lays the...