Modeling Coating Flaws With Non-linearPolarization Curves For Long Pipelines

@article{Riemer2005ModelingCF,
  title={Modeling Coating Flaws With Non-linearPolarization Curves For Long Pipelines},
  author={Douglas P. Riemer and Mark E. Orazem},
  journal={WIT Transactions on State-of-the-art in Science and Engineering},
  year={2005},
  volume={7}
}
  • D. RiemerM. Orazem
  • Published 4 November 2005
  • Materials Science
  • WIT Transactions on State-of-the-art in Science and Engineering
External corrosion is commonly mitigated by coating the structure with a high resistance film and by employing cathodic protection (CP) to protect regions that are inadequately coated or where the coating has degraded. Defects in the coating are termed holidays, and such holidays can expose bare steel. The objective of this paper is to explore the state-of-the-art in computer models for cathodic protection. The emphasis is placed here on mitigation of corrosion of underground pipelines, but the… 

Numerical simulations for cathodic protection of pipelines

Abstract: Mathematical models may be used for design or evaluation of cathodic protection (CP) systems. This chapter provides a historical perspective and a mathematical framework for the development

Advances In Cathodic Protection Modelling Of Deep Well Casings In Multi-Layered Media

This work is focused on the 3D simulation of cathodic protection (CP) systems for metallic deep well casings immersed in stratified soil. The soil is considered as a multi-layered electrolyte with

Numerical Modelling Of Cathodic ProtectionSystems For Deep Well Casings

This work is focused on the 3D simulation of cathodic protection (CP) systems for metallic deep well casings immersed in stratified soil. The soil is considered as a multi-layered electrolyte with

Modelling of the cathodic protection system with dynamic non-linear polarization characteristics

Cathodic protection (CP) is a technique that is used for protection of underground and underwater metallic structures from corrosion. Design of cathodic protection system requires defining of

Computational modelling of cathodic protection systems for pipelines in multi-layer soil

Computational modelling of cathodic protection (CP) systems involving thin multi-layer media represents a real challenge in terms of accuracy and efficiency required in the numerical calculation. In

Application Of Computational Modeling To Predict The Effectiveness Of Cp On A Pccp Transmission Pipeline

Prestressed Concrete Cylinder Pipe (PCCP) is a rigid pipe designed to take optimum advantage of the tensile strength of steel and of the compressive strength and corrosion inhibiting properties of

Enhancing Design And Monitoring Of Cathodic Protection Systems For Deep Well Casings With Computational Modeling

A number of applications are demonstrated in which computational modeling can benefit both the design stage and performance monitoring of CP systems for well casings, including 3D modeling with boundary elements.

References

SHOWING 1-10 OF 57 REFERENCES

Corrosion beneath disbonded pipeline coatings

The relationship between coatings, cathodic protection (CP), and external corrosion of underground pipelines is described. Historically, this problem has been addressed by focusing on the corrosion

External corrosion of line pipe -- A summary of research activities performed since 1983

External corrosion is a major threat to the integrity of gas transmission systems. This paper reviews corrosion and environmental cracking problems and their control based on more than twelve years

Cathodic protection

Cathodic protection is the electrical solution to the corrosion problem. In this article, the history of cathodic protection (CP) is traced, and the design fundamentals are developed, including the

Invited Paper Analysis Of Stray Current Corrosion Problems Using The Boundary Element Method

Today's offshore and ocean going structures and buried structures are fitted with systems which work to inhibit the rate at which the structure corrodes in the aggressive marine or soil environment.

Polarization under disbonded coatings : Conventional and pulsed cathodic protection compared

Disbonded coatings over pipeline steel can often lead to serious corrosion problems that cannot be controlled by conventional cathodic protection (CP) systems. CP effectiveness is limited by the high

Control of Pipeline Corrosion

This book presents practices, techniques, materials, and equipment used for basic corrosion and cathodic protection of pipelines. Written by an electrical engineer and a leading authority on control

A Numerical Model for Cathodic Protection of Buried Pipes

Abstract A mathematical modeling of large, cathodically protected, buried pipe networks was undertaken. The resulting model, OKAPPI, an abbreviation for the Dutch “Ondergrondse Kathodische Protectie

Mathematical Modeling of Cathodic Protection Using the Boundary Element Method with a Nonlinear Polarization Curve

ABSTRACT The distributions of potential and current density around a eathodically protected pipeline in seawater were deter- mined using the boundary element technique. A nonlinear polarization curve

About Coatings and Cathodic Protection: Possiblities of Impedance as Monitoring Technique

The possibility of existence of an indirect non-destructive method of detecting and quantifying areas of defect in organic coatings is very attractive from the economical point of view. The use of

Predicting the Time Dependence of Polarization on Cathodically Protected Steel in Seawater

Abstract A model is proposed for predicting the current-time history of cathodically protected steel in seawater by correlating galvanostatic and potentiostatic data with equations developed from the
...