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    Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Materials Science & Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Materials Science & Technology, 33, 12, 2017 DOI: 10.1016/j.jmst.2017.09.011

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Hydrogen transport in metals: Integration of permeation, thermal desorption and degassing

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Hydrogen transport in metals : Integration of permeation, thermal desorption and degassing. / Galindo-Nava, E.I.; Basha, B.I.Y.; Rivera-Díaz-del-Castillo, P.E.J.

In: Journal of Materials Science and Technology, Vol. 33, No. 12, 12.2017, p. 1433-1447.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Galindo-Nava, EI, Basha, BIY & Rivera-Díaz-del-Castillo, PEJ 2017, 'Hydrogen transport in metals: Integration of permeation, thermal desorption and degassing', Journal of Materials Science and Technology, vol. 33, no. 12, pp. 1433-1447. https://doi.org/10.1016/j.jmst.2017.09.011

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Author

Galindo-Nava, E.I. ; Basha, B.I.Y. ; Rivera-Díaz-del-Castillo, P.E.J. / Hydrogen transport in metals : Integration of permeation, thermal desorption and degassing. In: Journal of Materials Science and Technology. 2017 ; Vol. 33, No. 12. pp. 1433-1447.

Bibtex

@article{e05efd8d0b694917b4822f8ee50f975d,
title = "Hydrogen transport in metals: Integration of permeation, thermal desorption and degassing",
abstract = "A modelling suite for hydrogen transport during electrochemical permeation, degassing and thermal desorption spectroscopy is presented. The approach is based on Fick's diffusion laws, where the initial concentration and diffusion coefficients depend on microstructure and charging conditions. The evolution equations are shown to reduce to classical models for hydrogen diffusion and thermal desorption spectroscopy. The number density of trapping sites is found to be proportional to the mean spacing of each microstructural feature, including dislocations, grain boundaries and various precipitates. The model is validated with several steel grades and polycrystalline nickel for a wide range of processing conditions and microstructures. A systematic study of the factors affecting hydrogen mobility in martensitic steels showed that dislocations control the effective diffusion coefficient of hydrogen. However, they also release hydrogen into the lattice more rapidly than other kind of traps. It is suggested that these effects contribute to the increased susceptibility to hydrogen embrittlement in martensitic and other high–strength steels. These results show that the methodology can be employed as a tool for alloy and process design, and that dislocation kinematics play a crucial role in such design.",
keywords = "Hydrogen, Diffusion, Modelling, Trapping, Permeation, Desorption",
author = "E.I. Galindo-Nava and B.I.Y. Basha and P.E.J. Rivera-D{\'i}az-del-Castillo",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Journal of Materials Science & Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Materials Science & Technology, 33, 12, 2017 DOI: 10.1016/j.jmst.2017.09.011",
year = "2017",
month = dec,
doi = "10.1016/j.jmst.2017.09.011",
language = "English",
volume = "33",
pages = "1433--1447",
journal = "Journal of Materials Science and Technology",
issn = "1005-0302",
publisher = "Elsevier",
number = "12",

}

RIS

TY - JOUR

T1 - Hydrogen transport in metals

T2 - Integration of permeation, thermal desorption and degassing

AU - Galindo-Nava, E.I.

AU - Basha, B.I.Y.

AU - Rivera-Díaz-del-Castillo, P.E.J.

N1 - This is the author’s version of a work that was accepted for publication in Journal of Materials Science & Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Materials Science & Technology, 33, 12, 2017 DOI: 10.1016/j.jmst.2017.09.011

PY - 2017/12

Y1 - 2017/12

N2 - A modelling suite for hydrogen transport during electrochemical permeation, degassing and thermal desorption spectroscopy is presented. The approach is based on Fick's diffusion laws, where the initial concentration and diffusion coefficients depend on microstructure and charging conditions. The evolution equations are shown to reduce to classical models for hydrogen diffusion and thermal desorption spectroscopy. The number density of trapping sites is found to be proportional to the mean spacing of each microstructural feature, including dislocations, grain boundaries and various precipitates. The model is validated with several steel grades and polycrystalline nickel for a wide range of processing conditions and microstructures. A systematic study of the factors affecting hydrogen mobility in martensitic steels showed that dislocations control the effective diffusion coefficient of hydrogen. However, they also release hydrogen into the lattice more rapidly than other kind of traps. It is suggested that these effects contribute to the increased susceptibility to hydrogen embrittlement in martensitic and other high–strength steels. These results show that the methodology can be employed as a tool for alloy and process design, and that dislocation kinematics play a crucial role in such design.

AB - A modelling suite for hydrogen transport during electrochemical permeation, degassing and thermal desorption spectroscopy is presented. The approach is based on Fick's diffusion laws, where the initial concentration and diffusion coefficients depend on microstructure and charging conditions. The evolution equations are shown to reduce to classical models for hydrogen diffusion and thermal desorption spectroscopy. The number density of trapping sites is found to be proportional to the mean spacing of each microstructural feature, including dislocations, grain boundaries and various precipitates. The model is validated with several steel grades and polycrystalline nickel for a wide range of processing conditions and microstructures. A systematic study of the factors affecting hydrogen mobility in martensitic steels showed that dislocations control the effective diffusion coefficient of hydrogen. However, they also release hydrogen into the lattice more rapidly than other kind of traps. It is suggested that these effects contribute to the increased susceptibility to hydrogen embrittlement in martensitic and other high–strength steels. These results show that the methodology can be employed as a tool for alloy and process design, and that dislocation kinematics play a crucial role in such design.

KW - Hydrogen

KW - Diffusion

KW - Modelling

KW - Trapping

KW - Permeation

KW - Desorption

U2 - 10.1016/j.jmst.2017.09.011

DO - 10.1016/j.jmst.2017.09.011

M3 - Journal article

VL - 33

SP - 1433

EP - 1447

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

SN - 1005-0302

IS - 12

ER -