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 Top of the Line Corrosion Mechanism for Multiphase Sour Gas Subsea Pipeline
Available for download

Top of the Line Corrosion Mechanism for Multiphase Sour Gas Subsea Pipeline

Product Number: 51323-18782-SG
Author: Faisal M. Al-Abbas, Marwan S Alsulami, Hadi F Al-Mansour Ayman A. Alabdullatif, Fadhel H. Asfoor, Mohammed M. Al Zamanan
Publication Date: 2023
$20.00

The hydrocarbon exploration in the ocean and deep sea was started as early as early as the 1850s, when the first drilling was carried out in California, USA. Other early oil explorations activities were later recorded in Pakistan (1886), Peru (1869), India (1890) and Dutch East Indies (1893). The development of an offshore industry is directly related to the development of subsea pipelines as well. As the industry expands towards deeper waters, the pipelines are required to have better materials, designs, operation practices and maintenance strategies to withstand the challenging environments. These pipelines are exposed to elevated temperatures, high pressures, and corrosive fluids.
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 Preventing Corrosion under Insulation in Piping - Trends after Evaluating Digital Data from Thousands of Piping Circuits
Available for download

Preventing Corrosion under Insulation in Piping - Trends after Evaluating Digital Data from Thousands of Piping Circuits

Product Number: 51323-18871-SG
Author: Eddie Sanchez, Michael Townsend, Michael Nichols, Katherine Jonsson, Eric Sjerve, Ana Benz
Publication Date: 2023
$20.00

Extensive guidelines have been published for selecting where to search for corrosion under insulation (CUI). The guidelines are based on CUI failures and near misses. Piping CUI inspection programs collect the data outlined as relevant in specific company practices.
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