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dc.contributor.author
Skilbred, Ellen S.
dc.contributor.author
Kappes, Mariano Alberto
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Iannuzzi, Mariano
dc.contributor.author
Johnsen, Roy
dc.date.available
2022-08-25T13:54:56Z
dc.date.issued
2022-03
dc.identifier.citation
Skilbred, Ellen S.; Kappes, Mariano Alberto; Iannuzzi, Mariano; Johnsen, Roy; Hydrogen uptake and diffusivity in steel armor wires with different chemical composition, carbide distribution, grain size, and degree of deformation; Wiley VCH Verlag; Materials And Corrosion-Werkstoffe und Korrosion; 73; 3; 3-2022; 326-345
dc.identifier.issn
0947-5117
dc.identifier.uri
http://hdl.handle.net/11336/166566
dc.description.abstract
In this study, six flexible pipe steel armor wires used in oil and gas transportation are characterized, and their hydrogen diffusion coefficients and hydrogen uptakes are measured using an electrochemical hydrogen permeation technique. The wires have ferritic–pearlitic microstructures with round, lamellar, or partially lamellar carbides and the shape and orientation of the grains indicate that the microstructures were plastically deformed to different degrees. It was assumed that hydrogen was transported through the ferrite, so the presence of cementite in the steel armor wires leads to longer hydrogen diffusion paths through the ferrite, which was quantified with a tortuosity factor. After compensating for tortuosity, the normalized steady-state flux shows a tendency to increase as the grain size decreases. The effective diffusion coefficients increase with a decrease of the ferrite–cementite interface area, suggesting trapping on the ferrite–cementite interfaces. The uptake of diffusible hydrogen was lowest for the least plastically deformed materials and about twice as high for the more plastically deformed materials.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley VCH Verlag
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
CARBIDE DISTRIBUTION
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DEFORMATION
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DIFFUSIVITY
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HYDROGEN
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STEEL ARMOR WIRES
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Ingeniería de los Materiales
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Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Hydrogen uptake and diffusivity in steel armor wires with different chemical composition, carbide distribution, grain size, and degree of deformation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-08-23T11:29:53Z
dc.journal.volume
73
dc.journal.number
3
dc.journal.pagination
326-345
dc.journal.pais
Alemania
dc.journal.ciudad
Weinheim
dc.description.fil
Fil: Skilbred, Ellen S.. Norwegian University of Science and Technology; Noruega
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Fil: Kappes, Mariano Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
dc.description.fil
Fil: Iannuzzi, Mariano. Norwegian University of Science and Technology; Noruega. Curtin University; Australia
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Fil: Johnsen, Roy. Norwegian University of Science and Technology; Noruega
dc.journal.title
Materials And Corrosion-Werkstoffe und Korrosion
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/maco.202112615
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/maco.202112615
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