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AC corrosion. Part 2: Parameters influencing corrosion rate
Corrosion Science, 2010Abstract Pipelines and AC power transmission lines frequently share corridors leading to AC interference corrosion problems, as documented by pipeline failures that have occurred in the USA, Canada and Europe, even when cathodic protection is applied. In order to investigate these phenomena, weight loss tests on carbon steel samples were performed in
GOIDANICH, SARA +2 more
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Comparing AC Study Techniques in Addressing AC Corrosion Risk
CONFERENCE 2022, 2022Abstract An AC study and mitigation design was performed and installed to address corrosion risks. After a few years of operation, the site was revisited due to changing conditions and increasing AC current densities. For the second evaluation, new modeling software was used to evaluate the risk.
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The AC corrosion and SCC mechanism of X80 pipeline steel in near-neutral pH solution
, 2020This paper studied the mechanism of alternating current (AC) promoting corrosion and improving SCC susceptibility in near-neutral pH solution. It was found that AC can result in local corrosion.
H. Wan, D. Song, Yong Cai, C. Du
semanticscholar +1 more source
AC Corrosion: Corrosion Rate and Mitigation Requirements
CORROSION 2004, 2004Abstract Despite the existing body of research data and some empirical evidence apparently implicating AC currents as deleterious to the buried pipelines, there remained a need to further investigate the issue, especially the conditions at which AC currents may pose a threat to underground structures and cathodic protection requirements ...
Mark Yunovich, Neil G. Thompson
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AC-Induced Corrosion on Passive Metals
CORROSION 2010, 2010Abstract The effect of AC-induced interference on the localised corrosion resistance of passive metals is analysed and discussed on the basis of laboratory test results. Two conditions were considered: 1. AC interference on stainless steel specimens in neutral solution varying chlorides concentration; 2.
ORMELLESE, MARCO +2 more
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AC Interference Corrosion, Corrosive Soil, Design Issues, Zinc Ribbon and Corrosion Mitigation
CORROSION 2019, 2019Absrract A brief description of high voltage (HV) alternating current (AC) interference on buried coated pipelines is provided. Computer simulation for AC interference will be discussed. Relative ranking for: Separation distance, HVAC phase current, soil resistivity, co-location length and crossing angle will be provided and discussed ...
Mehrooz Zamanzadeh +4 more
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2003
The objectives of this project were to (1) verify the existence of AC corrosion and (2) determine under what conditions AC corrosion is a problem in typical high voltage, AC current, power corridors.
null Yunovich, null Thompson
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The objectives of this project were to (1) verify the existence of AC corrosion and (2) determine under what conditions AC corrosion is a problem in typical high voltage, AC current, power corridors.
null Yunovich, null Thompson
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AC Corrosion: Mechanism and Proposed Model
2004 International Pipeline Conference, Volumes 1, 2, and 3, 2004Corrosion caused by the discharge of 60 Hz AC current from a pipeline in a high voltage AC (HVAC) corridor has been discussed and studied over the past 20 or more years. More recent studies in Europe have specifically addressed these corrosion issues following several failures attributed to the presence of AC discharge from the pipeline.
Mark Yunovich, Neil G. Thompson
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Journal of Electroanalytical Chemistry, 2021
The corrosion behavior and mechanism of CoCrFeMnNi HEA interfered by AC current was investigated in carbonate/bicarbonate solution. AC application can destroy the structure of passive film, generate a change in the content of constitutes, and decrease ...
M. Zhu +4 more
semanticscholar +1 more source
The corrosion behavior and mechanism of CoCrFeMnNi HEA interfered by AC current was investigated in carbonate/bicarbonate solution. AC application can destroy the structure of passive film, generate a change in the content of constitutes, and decrease ...
M. Zhu +4 more
semanticscholar +1 more source
Evaluation of AC Corrosion in Pipelines Buried Using AC-Probe
CORROSION 2011, 2011Abstract Corrosion by alternating current in buried pipelines has been investigated for several years since the first AC-induced corrosion failure in the 60’s. After this occurrence, many research groups have been studied the phenomena in order to understand the mechanism and to purpose reliable criteria to access the probability of AC ...
Zehbour Panossian +8 more
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