AMPP Store - Products tagged with 'electrochemical corrosion'

Available for download

51317--9646-Electrochemical Study of the Influence of Acetic Acid on Carbon Steel Corrosion in Sour Environment

Product Number: 51317--9646-SG

ISBN: 9646 2017 CP

Author: Suresh Divi

Publication Date: 2017

$20.00

An investigation into the effect of ppm concentrations of acetic acid on the electrochemical corrosion behavior of API 5L X65 carbon steel in a sour environment. Electrochemical techniques, Linear Polarization Resistance (LPR), Potentiodynamic Polarization and Electrochemical Impedance Spectroscopy (EIS), were used.

Available for download

Advancement of a Comprehensive Mechanistic CO2 Corrosion Model to Incorporate Simulated Hydrodynamics via a Turbulent Flow Model

Product Number: 51324-20657-SG

Author: Michael Jones; Gregory de Boer; Richard Woollam; Joshua Owen; Richard Barker

Publication Date: 2024

$40.00

In this work, two comprehensive mechanistic models of aqueous carbon dioxide (CO2) corrosion produced by Nordsveen et al.1 and Kahyarian et al.2 17 years apart are recreated and compared to highlight the evolution in understanding. The differences between the models include the role of carbonic acid at the surface, whether it is directly reduced or acts as a buffering agent, as well as different mechanisms for the anodic response, and varying temperature responses of multiple input variables. Through recreation and validation of these models using the same software, key comparisons are made to understand the effect of these changes on predicted corrosion rate, surface pH, and speciation through the boundary layers. These values are plotted across a range of input parameters to investigate how the change in scientific understanding influences predictive response of corrosion models.

Available for download

Assessing Comprehensive Mechanistic CO2 Corrosion Modeling Methods and Their Impact on Predicted Corrosion Behavior

Product Number: 51324-20656-SG

Author: Michael Jones; Gregory de Boer; Richard Woollam; Joshua Owen; Richard Barker

Publication Date: 2024

$40.00

In this work, two comprehensive mechanistic models of aqueous carbon dioxide (CO2) corrosion produced by Nordsveen et al.1 and Kahyarian et al.2 17 years apart are recreated and compared to highlight the evolution in understanding. The differences between the models include the role of carbonic acid at the surface, whether it is directly reduced or acts as a buffering agent, as well as different mechanisms for the anodic response, and varying temperature responses of multiple input variables. Through recreation and validation of these models using the same software, key comparisons are made to understand the effect of these changes on predicted corrosion rate, surface pH, and speciation through the boundary layers. These values are plotted across a range of input parameters to investigate how the change in scientific understanding influences predictive response of corrosion models.

Available for download

Challenges Of Mitigating AC Interference Risks In A 107 Km Multi-Pipeline Corridor

Product Number: 51322-17949-SG

Author: Wolfgang Fieltsch, Paul Murray

Publication Date: 2022

$20.00

This case study involves an NPS 36, 107 km long pipeline (Pipeline A) installed in 2016. The subject pipeline is collocated with an NPS 30 pipeline constructed in 1999 (Pipeline B), for the entire route, and two additional pipelines near the start of its route (Pipelines C and D), all owned by the same operator.

Available for download

Development Of High Velocity Oxygen Fuel (HVOF) Corrosion Resistant Coatings; A Comparison Between Novel High Entropy Alloy (HEA) And Conventional Cermet Coatings For Geothermal Applications

Product Number: 51322-17675-SG

Author: Gifty Oppong Boakye, Baldur Geir Gunnarsson, Erlend Oddvin Straume, Feifei Zhang, Arna María Ormsdóttir, Sigrún Nanna Karlsdóttir

Publication Date: 2022

$20.00

Several components in geothermal power plants need to be protected from the environment due to the corrosive nature of geothermal fluids used to generate the energy. Depending on the fluid properties for any location, the type of protection varies. In geothermal power plants, wear, erosion, corrosion, and scaling are all known problems1. These issues can lead to a variety of outcomes, ranging from decreased plant efficiency to upstream component failure. Failure of a component is thus a significant challenge in the geothermal industry, where materials need to operate in high temperature and high pressure environments. A major cost factor is also linked to the drilling of geothermal wells, where cost rises due to increased depth/distance of drilling, increased trip times, higher high temperature and high-pressure conditions which can lead to increased wear and corrosion of the materials. To address the issue, coatings can be considered to be a potential solution to extend the service life of downhole equipment.

Available for download

Effect of Blocking Compound on Electrochemical Corrosion Behavior of Wire Rope at Gulf of Mexico Surface and Subsea Temperatures

Product Number: 51320-14262-SG

Author: Suresh Divi, Swight Janoff

Publication Date: 2020

$20.00

Wire ropes with a sheathed spiral strand are commonly used for mooring applications in offshore oil and gas production. Each strand comprises a bundle of galvanized steel wires with a blocking compound applied to the outer layer of the wire bundle to prevent seawater from contacting the internal strands of wire if there is a breach in the urethane cover. The blocking compound and a sacrificial zinc layer on each strand of wire are designed to protect the carbon steel.

Depending on the water depth where the wire rope is being used offshore, it can experience a wide range of temperatures—from 22°C at the surface to 4°C at the seabed. Corrosion behavior of wires at these temperatures is critical, in case of breach in the urethane cover.

Immersion and electrochemical corrosion testing was performed on subsea mooring line wire rope with and without blocking compound in synthetic seawater at 4°C, 13°C, and 22°C. Samples of galvanized wire with and without blocking compound at the lowest temperature (4°C) did not exhibit any iron corrosion products even after 160 days of exposure to synthetic seawater. The corrosion rate of galvanized steel with blocking compound remained less than 2 mpy, while that for galvanized steel without blocking compound remained less than 5 mpy.

Available for download

Numerical Exploration of a Comprehensive Mechanistic CO2 Corrosion Model Part I: Influence of Temperature, Pressure and Bulk pH

Product Number: 51323-19304-SG

Author: Michael Jones, Gregory de Boer, Richard Woollam, Joshua Owen and Richard Barker

Publication Date: 2023

$20.00

Simulation and modeling of corrosion processes is an area of research that has seen significant growth
in recent decades, with technological advancements drastically reducing the time required to solve the
equations that underpin real-world physics. Predicting the behavior of a system computationally, when
done accurately, provides great benefit complementing experimental testing to further explain what is
happening within the corrosion process. There have therefore been multiple predictive models produced
over the years to achieve this aim. Within the realm of carbon dioxide (CO2) corrosion, Kahyarian et al.

Available for download

Numerical Exploration of a Comprehensive Mechanistic CO2 Corrosion Model Part II: Influence of Hydrodynamics and Bulk pH

Product Number: 51323-19305-SG

Author: Michael Jones, Gregory de Boer, Richard Woollam, Joshua Owen and Richard Barker

Publication Date: 2023

$20.00

It is well known that the hydrodynamics of fluid flow directly influences the corrosion process, as shown
in various experiments utilizing rotating electrodes and flow loops to measure corrosion within
turbulent flow. However, when fluid is flowing through a pipe, there is a phenomenon known as the ‘noslip
condition’ which causes the velocity of the fluid to tend to zero as it reaches the wall. For straight
pipe flow, this follows the ‘universal law of the wall’ (Figure 1) which separates flow into 3 domains: fully
turbulent flow, the buffer layer, and the viscous sublayer (also known as the boundary layer) which is the
being modelled here.

Available for download

Sequential Combining of Ultraviolet Light and Salt Spray Stresses: Toward the Next Generation of Test Methods

Product Number: 51218-111-SG

Author: Sean Fowler, Andy Francis, Bill Tobin, David Duecker

Publication Date: 2018

$20.00

Protective coatings exposed to sunlight must withstand multiple environmental stresses: ultraviolet light, moisture, heat, corrosive chlorides and other salts, and atmospheric pollutants. Two decades after the publication of a sequential UV and cyclic salt spray test method in ASTM D5894, some efforts to create better and more predictive test methods have focused on delivering both UV and salt spray in a single chamber and adding additional stresses such as ozone exposure, air pressure fluctuations, atmospheric pollutants such as sulfur dioxide, and other environmental factors.

Products tagged with 'electrochemical corrosion'

Association for Materials Protection and Performance