Menu
Search
Filters
Close
Menu

Integrated Corrosion Analysis Software and its Application to dc Corrosion Analysis

Picture for Integrated Corrosion Analysis Software and its Application to dc Corrosion Analysis
Available for download

When a metal or metal alloy is immersed in an electrolyte made of a conducting material of sufficient oxidizing power, such as moist soil, it will corrode according to a well-defined electrochemical mechanism. dc corrosion is a result of dissolution of material due to oxidizing reactions, liberating electrons and forming positive ions transported into the electrolyte, leading to material loss. The current-potential relationship governing this electrochemical process termed polarization, is non-linear. This relationship is often represented by a polarization curve, which is typically, an experimentally determined function. There are a number of parameters that can contribute to the final characteristics of the polarization curve within a system ranging from material parameters (e.g. material, geometry) to environmental factors (e.g. composition of the electrolyte).

Product Number: 51323-18819-SG
Author: F. P. Dawalibi, J. Cheng, Y. Jiang,
Publication Date: 2023
Industry: Coatings
$0.00
$20.00
$20.00

This paper introduces a novel approach to analyze corrosion effects and to model electrochemical problems with non-linear boundary conditions. The computation of the electrical current distribution along protected structures is based on an automated algorithm involving the polarization curves and an integrated iterative process. The method is first used to solve a well-known benchmark test problem and the results are compared to those obtained using the benchmark analytical expression. Then, an example of a realistic cathodic protection system aimed at mitigating stray currents from a HVDC electrode on a pipeline is described and discussed. It is shown that the proposed iterative approach accurately computes the electrochemical potential process. This approach constitutes the core effort in the development of an accurate non-linear polarization solver.

This paper introduces a novel approach to analyze corrosion effects and to model electrochemical problems with non-linear boundary conditions. The computation of the electrical current distribution along protected structures is based on an automated algorithm involving the polarization curves and an integrated iterative process. The method is first used to solve a well-known benchmark test problem and the results are compared to those obtained using the benchmark analytical expression. Then, an example of a realistic cathodic protection system aimed at mitigating stray currents from a HVDC electrode on a pipeline is described and discussed. It is shown that the proposed iterative approach accurately computes the electrochemical potential process. This approach constitutes the core effort in the development of an accurate non-linear polarization solver.

Product tags
Also Purchased
Picture for Considerations Associated With the Selection of Electrochemical Protection Systems for a High-Rise Building in Sydney, Australia
Available for download

Considerations Associated With the Selection of Electrochemical Protection Systems for a High-Rise Building in Sydney, Australia

Product Number: 51323-18844-SG
Author: Blane McGuiness, Atef Cheaitani
Publication Date: 2023
$20.00

The case study presented in this paper is for a 7-story apartment building situated in a beach-front location in Sydney, Australia. The building was constructed circa 1977 and over the years was affected by concrete defects related to chloride ingress from the adjacent sea front.
Picture for On the weldability and corrosion resistance of alloy UNS N08827 – a further improvement of alloy UNS N08825
Available for download

On the weldability and corrosion resistance of alloy UNS N08827 – a further improvement of alloy UNS N08825

Product Number: 51323-18847-SG
Author: Julia Botinha, Martin Wolf, Helena Alves
Publication Date: 2023
$20.00

Recently, the nickel-based alloy UNS N08827, commercially known as VDM ® Alloy 825 CTP(3), has been presented to the oil and gas industry as an alloy that has been developed to fill in the existing gap between both UNS N08825 and UNS N06625 in terms of localized corrosion resistance. It is a solid-solution nickel alloy with chemical composition similar to UNS N08825, except for its doubled molybdenum content and the no addition of titanium.
Picture for Field Testing of Self-Healing Metallic Coatings for Internal Corrosion Protection of Natural Gas Pipelines
Available for download

Field Testing of Self-Healing Metallic Coatings for Internal Corrosion Protection of Natural Gas Pipelines

Product Number: 51323-18857-SG
Author: Zineb Belarbi, Ömer N. Doğan, Patrick Carr, Richard E. Chinn, Julius Samson
Publication Date: 2023
$20.00

Natural gas pipelines are subject to internal corrosion. Internal corrosion of steel pipelines can cause natural gas leakage, leading to wasted energy, explosion hazards, and methane emissions. The U.S. Department of Transport reported numerous case histories of corrosion problems and failures in wet gas pipelines. The National Energy Technology Laboratory (NETL) performed an incident survey from 2010 through 2018 and found that 112 (12%) of these incidents in the U.S. transmission lines were caused by internal corrosion.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support