AMPP Store - Products tagged with 'galvanic corrosion'

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51316-7058-Galvanic Series in Seawater as a Function of Temperature Oxygen Content and Chlorination

Product Number: 51316-7058-SG

ISBN: 7058 2016 CP

Author: Dominique Thierry

Publication Date: 2016

$20.00

In this work, the open circuit potential of different stainless steel grades as well as nickel based and copper based alloys has been systematically measured in seawater under different experimental conditions. In particular the effect of temperature, oxygen content and chlorination level have been studied.

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51317--9638-Marine Corrosion Performance of Copper Alloy UNS C69100

Product Number: 51317--9638-SG

ISBN: 9638 2017 CP

Author: Julian Wharton

Publication Date: 2017

$20.00

Electrochemical test methods including open-circuit potential, electrochemical impedance spectroscopy, potentiodynamic polarization, and zero-resistance ammetry were used for corrosion investigation of UNS C69100 in a 3.5 wt.% sodium chloride aqueous solution, with optical and scanning electron microscopy.

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51318-10968-Atmospheric Corrosion Measurements to Improve Understanding of Galvanic Corrosion of Aircraft

Product Number: 51318-10968-SG

Author: Shiladitya Paul

Publication Date: 2018

$20.00

An atmospheric cell measures corrosion kinetics. The limiting oxygen reduction current density is increased over immersion results. A segmented, galvanic sensor that enables quantification of spatial distributions of galvanic current is presented.

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51318-11612-Electrochemical behavior of titanium and titanium nitride monolithic and layered thin films

Product Number: 51318-11612-SG

Author: Golnaz Najaf Tomaraei / Amir Poursaee / Marian S. Kennedy

Publication Date: 2018

$20.00

The 100 nm Monolithic Ti and TiN_xthin films were deposited onto (100) Si wafers using PVD processes. The electrochemical and semi-conductive behavior of these films was studied at room temperature in one of three electrolytes.

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Aluminum Floating Roof Damage from Hydrotesting

Product Number: 51324-20804-SG

Author: Sudhakar Mahajanam; Jane Brown; Krista Heidersbach; Lokesh Choudhary

Publication Date: 2024

$40.00

During construction or refurbishment of crude oil tanks, hydrotesting is routinely performed, sometimes with an aluminum floating roof or pontoons in place. Upon occasion, damage has been sustained to the aluminum floating roofs in a relatively short period of time. Damage is commonly believed to be a result of poor water quality with bacteria or chlorides being suspected of causing the corrosion. Galvanic coupling between the roof and the carbon steel tank has also been cited as a potential contributing factor. Experiments were set up using three types of aluminum alloys: AA 3003, AA 5052-H32 and AA 6061. The objective of the study was to replicate some common field conditions and to determine which mechanism could be the primary cause of damage; chlorides, bacteria or galvanic coupling. It is possible that the damage mechanisms act in concert, creating early life damage / failures. This paper shares some details from case studies on existing tanks and the results of the lab work to help pinpoint and identify the primary cause of such failures. The goal of this project was to approach this problem holistically.

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AMPP TM21449-2021, Continuous Measurements for Determination of Aerospace Coating Protective Properties

Product Number: AMPP TM21449-2021

Publication Date: 2021

$109.00

The purpose of this standard Test Method is to provide guidance on the testing and evaluation of coatings for aerospace applications. This Test Method has been developed for use by researchers, manufacturers, and organizations responsible for the manufacture, specification, and use of corrosion protective coatings for aerospace structures. The Test Method details measurement techniques to continuously monitor the combined environmental and mechanical effects that drive coating degradation in laboratory tests. While for many industries, judgements of coating performance may be primarily aesthetic, this Test Method describes direct, continuous measurements of coating degradation processes that are important to aircraft structural integrity.

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Atmospheric Environment Severity Monitoring for Corrosion Management

Product Number: 51323-19464-SG

Author: Liam Agnew, Brandi Clark, Victoria Avance, Fritz Friedersdorf

Publication Date: 2023

$20.00

Corrosion costs the US Department of Defense billions of dollars annually, with the impact of corrosion estimated at $20.6B in fiscal year 2016. It continues to be one of the leading causes of aircraft unavailability and accounts for a significant portion of maintenance labor and costs. Corrosion management practices are chosen to minimize maintenance costs while maximizing the availability of an asset.

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Cold-Spray Application For In-Field Corrosion And Damage Repair

Product Number: 51323-19086-SG

Author: Joshua P. James

Publication Date: 2023

$20.00

The need for corrosion mitigation and repair is a perennial concern for a wide array of industries. An attractive evolution in coatings application for mitigating the effects of environmental/operational degradation is cold spray of metallic replacement layers. As cold spray technologies continue to become more commonplace, portable, low-pressure cold spray systems presents an opportunity to bring metallic repair to the field for heavily damaged or corroded assets.

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Combatting Localized Galvanic Corrosion at Bolted Connections in Gravity Sludge Thickeners and Clarifiers in Wastewater Treatment Plants

Product Number: 51220-269-SG

Author: R. A. Nixon

Publication Date: 2020

$20.00

This paper will describe this commonplace corrosion problem associated with protective coating damage at dissimilar metal bolted connections and present a typical case history. The paper will go on to explain why slotted bolt holes are more susceptible to more aggressive corrosion damage than round bolt holes. In addition, the paper will present successful measures that can be taken to prevent this prevalent problem.

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Combatting Localized Galvanic Corrosion at Bolted Connections in Gravity Sludge Thickeners and Clarifiers in Wastewater Treatment Plants

Product Number: 51220-275-SG

Author: R. A. Nixon

Publication Date: 2020

$20.00

This paper will describe this commonplace corrosion problem associated with protective coating damage at dissimilar metal bolted connections and present a typical case history. The paper will go on to explain why slotted bolt holes are more susceptible to more aggressive corrosion damage than round bolt holes. In addition, the paper will present successful measures that can be taken to prevent this prevalent problem.

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Corrosion Protection Of API 5L Steel By Cold Spray Zinc Alloy Coatings In Simulated Natural Gas Pipeline Environments

Product Number: 51321-16977-SG

Author: Lucas Teeter; Margaret Ziomek-Moroz; Joseph Tylczak; Grant Crawford

Publication Date: 2021

$20.00

Available for download

Effect Of Relative Humidity And Galvanic Couples On Stress Corrosion Cracking Of High-Strength Aluminum Alloys

Product Number: 51322-18015-SG

Author: L. Agnew, B. Clark, V. Avance, F. Friedersdorf

Publication Date: 2022

$20.00

High-strength aerospace aluminum alloys, such as AA7075-T651, are susceptible to environmental assisted cracking (EAC) under the right combinations of stress, environment, and microstructure. EAC presents a serious risk to structures and equipment operated in corrosive conditions. Studies of EAC in aluminum alloys have highlighted the importance of both anodic dissolution and hydrogen embrittlement to EAC initiation and propagation.^1–4 The EAC response of alloys under variable atmospheric conditions is of particular importance for assessing material performance for aerospace applications.

Products tagged with 'galvanic corrosion'

Association for Materials Protection and Performance