AMPP Store - Products tagged with 'electrochemical impedance spectroscopy'

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Cathodic protection shielding and prevention of the corrosion under disbonded coating in soils

Product Number: 51323-19248-SG

Author: Erwan Diler, Nicolas Larche, Jean Vittonato, François Castillon, Sylvain Fontaine, Thierry Kerzerho, Patrice Lucas, Eric Agel

Publication Date: 2023

$20.00

Organic coatings protect the underlying metallic substrate against corrosion by acting as a barrier to corrosive species such as water, ions, and oxygen. Unfortunately, coatings might contain defects and could degrade or disbond under some environmental conditions, resulting in favorable pathways for such corrosive species.

Barrier protection is one of the modes by which intact coatings provide protection to metal substrates through a reduction of the transport of materials, ions, or charge.

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Close Encounters of the Third ‘Crude-Oil’ Kind

Product Number: 41215-918-SG

Author: Brian O’Farrell

Publication Date: 2015

$20.00

This paper compares and contrasts the accelerated laboratory autoclave (NACE TM0185) performance at 300°F (149°C), and 250 psig, of eight polycyclamine cured epoxy linings. The latter were tested for tank, vessel and pipe spool applications in the oil and gas industry. Five of the linings were commercially available and three were experimental. A modified amine cured epoxy was also evaluated in the study, a lining used to transport shale oil in railcars at temperatures up to 200°F (93°C).

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Corrosion Inhibition Of Automotive Parts In Water-Ethylene Glycol Solutions

Product Number: 51322-17593-SG

Author: Behzad Bavarian, Koushik Kosanam, Lisa Reiner

Publication Date: 2022

$20.00

The efforts to lower automotive component weight to make cars more fuel efficient has increased the demand for aluminum alloys. In these applications, substantial amounts of heat are generated due to engine combustion, making it necessary to cool the engine systems. Metals in an engine application will rely on coolant to transfer heat. Corrosion behavior is another consideration for metals. Aluminum alloys, similar to the metals they are replacing, are sensitive to corrosion, especially in an aqueous alkaline environment.

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Corrosion Resistance Of FBE Internal Coating Pipe In High Temperature And High CO2-H2S-Cl- Environment

Product Number: 51322-17509-SG

Author: Xuehua Fan, Yong Yu, Kun Fang, Yunan Zhang, Jinyang Zhu, Chang Liu, Feng Gu, Lei Zhang

Publication Date: 2022

$20.00

In 1950s, as an important measure to improve the corrosion resistance of base metal, internal coating pipes was first applied to sour crude oil and natural gas pipelines [1]. Among the coating systems, FBE coating has good impact resistance, bending resistance, high bonding strength, good resistance for acid, alkali, salt, oil and water fluid. The coating can reduce the internal surface roughness friction resistance of piping & pipeline to reduce project investment.

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Developing Vapor Phase Corrosion Inhibitors for Aluminum Alloys in Ethylene Glycol Coolant Solutions

Product Number: 51324-20382-SG

Author: Behzad Bavarian; Lisa Reiner

Publication Date: 2024

$40.00

Different vapor phase corrosion inhibitors were evaluated to determine their corrosion inhibition for aluminum alloys in Ethylene glycol (C2H6O2) coolant mixture. When the temperature exceeds 80°C, ethylene glycol can decompose into organic acids. The resulting acidic environments cause severe localized corrosion of aluminum alloys. The corrosion behavior was studied at multiple temperatures in different corrosion inhibitors using different concentrations. Corrosion inhibitor VCI-A, VCI-B, VCI-C, and VCI-D at 2.5-3.0% dosage showed excellent corrosion protection. VCI-A, VCI-C and VCI-D maintained a steady, low corrosion rate during long term exposure by neutralizing pH and forming a hydrophobic film. They increase the polarization resistance by a significant factor, therefore, lowered corrosion rate. VCI-B inhibitor, also showed the ability to reduce the corrosion rate of aluminum in ethylene glycol solutions. However, due to its high pH chemistry, the effective dosage should be maintained at <2.5% to avoid any potential increase in pH that can promote localized corrosion or under-deposit corrosion attacks of aluminum alloys. The results of this investigation demonstrated that these inhibitors can lower the corrosion rate in water-ethylene glycol solutions by neutralizing pH and forming stable films.

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Drawbacks of Corrosion Creep as a Performance Indicator for Corrosion Protective Coatings

Product Number: 51323-19270-SG

Author: Andreas Løken, Anders W. B. Skilbred

Publication Date: 2023

$20.00

One of the most common ways of protecting steel assets and structures is by organic protective coating systems. The performance of such protective coating systems is assessed based on results after accelerated laboratory exposure testing, where one attempts to mimic the conditions the coatings will be exposed to under in-service conditions in a significantly shorter time frame. Such testing is also how coating systems are qualified for certain corrosivity classes and durabilities, being formalized in standards and specifications such as ISO 12944-6 and NORSOK M-501 ed. 7.

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Early Test Results of One-Coat Systems Applicable to Steel Bridge Structures

Product Number: 41208-427-SG

Author: Seung-Kyoung Lee, Shuang-Ling Chong, Yuan Yao

Publication Date: 2008

$20.00

A two-year FHWA in-house study was launched in November 2006 to evaluate various coating materials that can be applied as one-coat systems to steel bridges. A total of eight test materials plus a 3-coat system and a 2-coat control system were applied over near-white steel test panels (SSPC-SP10). Their performance is being monitored using electrochemical impedance spectroscopy, various surface failures, rust creepage at scribe, adhesion, and change of color and gloss.

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Electrochemical Corrosion Analysis Of Stainless Steels In LALM Pyrolysis Bio-Oil With Organic Corrodents

Product Number: 51322-17759-SG

Author: Jiheon Jun, Dino Sulejmanovic, James R. Keiser, Michael P. Brady, Michael D. Kass

Publication Date: 2022

$20.00

Biomass-derived pyrolysis oils (bio-oils) are recognized as a renewable energy source that could
aid in the reduction of fossil fuel use. Bio-oils exhibit higher corrosivity to common ferrous alloys because the oils contain organic acids and water. A series of corrosion studies were previously performed to determine the corrosion rates of ferrous alloys exposed in bio-oils for a quantitative evaluation of the material compatibility. The key information from these previous studies is that ferrous alloys with more Cr, Ni, and Mo are needed for compatibility with bio-oils.

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Electrochemical Corrosion Studies of Different Alloys and Cement Lining Material of Water Transmission system

Product Number: 51323-19203-SG

Author: Ali Al-Sahary, Fatma Al-Radhi, Abdulrahman Al-Enezi, Nausha Asrar

Publication Date: 2023

$20.00

Saline Water Conversion Corporation (SWCC) is the largest producer of water by its different water desalination plants distributed around the kingdom. Produced water is transmitted through underground pipelines. These pipelines are more than 8,000 KM in length and varying diameter from 8 thru 75 in.

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Electrochemical Noise Measurements for Assessing Level of Corrosion Protection Being Afforded by a Coating to External Metal Structures Using a Hand-Held Portable Device

Product Number: 51318-10860-SG

Author: Michael T. Woldemedhin / Chi Lee / Brian Skerry / Douglas J. Mills

Publication Date: 2018

$20.00

A portable electrochemical noise measuring device has recently been developed to evaluate the corrosion-protective properties of anti-corrosive coatings in-service.

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Enhanced Oil Recovery: Localization of corrosion during polymer flooding

Product Number: 51323-18888-SG

Author: Moritz Schwingenschlögl, Gunther Ball

Publication Date: 2023

$20.00

Traditionally, oil recovery operations are subdivided into primary, secondary and tertiary stages. EOR is commonly classified as tertiary recovery, where gases, liquid chemicals and thermal energy can be used to enhance the displacement of reservoir fluids. Different sources divide EOR into two to five categories, one particular method, polymer flooding, is based on increasing the fluid viscosity by adding a polymer to the injected water. Polymer EOR is a mobility-control process using a polymer-augmented waterflood, typically a solution of partially hydrolyzed polyacrylamide (HPAM) or polysaccharides, which is injected to displace oil towards production wells.

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Field and Laboratory Experience with Polyurethane Pipe Linings

Product Number: 41214-863-SG

Author: Allen Skaja, David Tordonato, Bobbi Jo Merten

Publication Date: 2014

$20.00

The Bureau of Reclamation’s Materials Engineering Research Laboratory has been evaluating polyurethane pipe linings for severe immersion exposure, specifically for outlet works and penstock linings. Polyurethanes have several advantages over other coatings, such as application temperature range, faster cure times in cold temperatures, rapid return to service, coat large surface area rapidly, low viscosity (i.e., accommodates pumping over longer distances), and greater impact resistance.

Products tagged with 'electrochemical impedance spectroscopy'

Association for Materials Protection and Performance