CorroZone: Fundamentals of Cathodic Protection

About CorroZone: Fundamentals of Cathodic Protection

A plain-language audio walk through the fundamentals and design of cathodic protection — section by section, from CorroZone's Cathodic Protection course. From the core electrochemistry and CP concepts to current distribution, potential gradients and CP design principles. Free, no login. From CorroZone. Full courses here: https://corrozone.com/courses#udemy

Publisher

CorroZone

Category

education

Language

en

Explicit

No

First episode

23 May 2026

Latest episode

21 Jun 2026

Latest episodes

30 episodes in the feed.

1. 

   21 Jun 2026

   Master the Fundamentals of Cathodic Protection — Course Wrap-Up

   Full courses here: https://corrozone.com/courses#udemy A whole-course recap of how the four sections fit together — from the electrochemistry of corrosion and cathodic protection, through measuring and judging whether protection is working, to how protection spreads across a real structure, and finally to designing a system that delivers it. Course wrap-up A whole-course recap of the four sections that build on each other: Section 1 — Fundamental concepts: the basics of corrosion and cathodic protection, free corrosion and applying current, how charge moves through the electrolyte, the two families of CP systems, and measuring potentials. Section 2 — Core CP concepts: ohmic effects and IR drop, the electrochemical reactions, a thermodynamic view, the protection criteria, overprotection, potential transients and OFF potential measurement. Section 3 — Current distribution and potential gradients: how potential varies through the environment, remote anode placement, stray current corrosion and potential decay — from one measurement to the whole structure. Section 4 — Design principles: anode materials, anode mass, anode resistance and the groundbed, how organic coatings change current demand, the current drain test, and the overall design concepts. The through-line: from understanding the electrochemistry, to measuring and judging it, to seeing how it behaves across a real structure, to designing a system that delivers it. Who this is for Engineers, technicians, students and professionals who finish the course able to reason about a cathodic protection system rather than memorise rules — judging what a potential measurement really tells them, picturing how protection distributes, and walking through the core design calculations.

2. 

   20 Jun 2026

   28 · Course Summary and Next Steps

   Full courses here: https://corrozone.com/courses#udemy A consolidating final lecture that pulls the twenty-seven preceding lectures into one framework — recapping the four sections, drawing out five cross-cutting principles, offering a six-step way to approach a real CP problem, and signposting the advanced topics and standards that come next. What you'll learn How the four course sections fit together — fundamental concepts, core CP concepts and assessment, current distribution and potential gradients, and CP design principles — each section building on the one before The five cross-cutting principles: polarisation is the mechanism but potential is the measure; IR drop is always present and must be accounted for; coatings and CP are complementary not interchangeable; current distribution determines uniformity of protection; and design life drives mass and capacity A structured six-step way to attack a real CP problem — characterise the environment, assess the structure, estimate the current requirement, select the system type, size the system, then commission and monitor The advanced topics signposted for further study — AC interference, CIPS and DCVG surveys, permanent CP monitoring systems, and the key standards ISO 15589, NACE SP0169 and BS EN 12954 Why engineering judgement on the inputs matters as much as the formulae, and what a finishing learner can now do — reason about a CP system and engage with reports, specifications, field measurements and the literature Who this is for Engineers, technicians and students finishing the fundamentals who want to consolidate the framework before advanced study or real cathodic protection practice.

3. 

   19 Jun 2026

   27 · CP Design Concepts

   Full courses here: https://corrozone.com/courses#udemy How to design a cathodic protection system as the inverse of assessment: a seven-step workflow that turns a protection requirement into a verified specification — current demand from the breakdown factor, choosing sacrificial versus ICCP, sizing anodes by Faraday's law, the Dwight-formula groundbed resistance and rectifier voltage budget, current distribution, and commissioning with deliberate iteration. What you'll learn The seven-step CP design workflow — define inputs, determine current demand, select system type, size anodes, calculate resistance and voltage, assess current distribution, then commission and verify — applied to both sacrificial and ICCP systems How to determine current demand from the protection current density, the total area and the coating breakdown factor (I-d = i-bare times A-total times f-c), designing sacrificial mass against mean demand and ICCP rectifiers against end-of-life demand How to choose sacrificial versus ICCP based on resistivity, current demand magnitude, power availability, maintenance access and explosive atmospheres How to size sacrificial anodes by Faraday's law (mass = mean current times life times 8,760 over capacity times utilisation factor) and to size ICCP using groundbed resistance via the Dwight formula and the rectifier voltage budget Why current distribution and placement matter — distributed anodes, spacing limits, the vulnerable far end and isolated sections — and why design iterates and is verified at commissioning, changing one variable at a time Who this is for Engineers, technicians and students who specify or size cathodic protection systems for pipelines, offshore structures, tanks, ship hulls or reinforced concrete.

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