Cathodic protection (CP; / k æ ˈ θ ɒ d ɪ k / ⓘ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. [1] A simple method of protection connects the metal to be protected to a more easily corroded "sacrificial metal" to act as the anode. The sacrificial metal then corrodes ...

Cathodic protection (CP) is an electro-chemical process that prevents corrosion currents by applying direct current (DC) to a metal structure. When applied properly, CP stops the corrosion reaction, ensuring the long-term integrity of steel or other metallic structures. Curious about how CP can protect your critical infrastructure?

Cathodic Protection is an industrial technique for controlling metallic corrosion. Cathodic protection is commonly used on buried and submerged metallic structures like pipelines, underground storage tanks, locks, subsea equipment, offshore floaters, harbors, and ship hulls.

2020年6月29日 · Cathodic protection is a popular protection method for preventing corrosion in pipelines, offshore oil platforms and other steel structures. However, to be implemented effectively, it is crucial to understand the basic principles of bimetallic/galvanic corrosion.

2025年1月28日 · Cathodic Protection for Underground Storage Tanks and Pipelines. Cathodic protection is crucial for underground storage tanks and pipelines. These types of structures are more difficult for people to routinely access for assessment, maintenance and repairs. You want a system that prevents underground corrosion consistently and reliably for ...

Cathodic protection methods – differences and similarities. In our last article, we examined electrochemical corrosion and introduced the major areas where cathodic protection is used to protect against corrosion in aggressive environments such as soils, waters, and chloride contaminated concrete.

Cathodic protection systems are designed to control the corrosion of a metal surface. While localized damaged surfaces can be patched, ongoing degradation may weaken the integrity of the overall infrastructure.

2024年7月19日 · Cathodic protection is a technique used to protect metal surfaces from corrosion by making the metal surface the cathode of an electrochemical cell. Cathodic protection is typically used in environments where metals are exposed to corrosive environments, such as saltwater, soils and concrete.

Cathodic protection is one of the few methods of corrosion control that can be effectively used to control corrosion of existing buried or submerged metal surfaces. Thus, if

Corrosion control systems which relocate these oxidation reactions, by making the protected structure a cathode in a larger corrosion cell, is called a “cathodic” protection system.” The cathodic protection anodes are installed to become the anode in this larger corrosion cell and provide the location for all oxidation reactions in the cell.