Ordering kinetics evaluation of FeAl powders

In this study, time resolved X-ray diffraction experiments using synchrotron X-ray radiation have been performed to get insight on the time and temperature dependent atomic ordering of an intermetallic Fe-40A1 (at.%) ball-milled powder. The target of the present study is to gain knowledge on the rap...

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Autores: Cinca i Luis, Núria, Isalgué Buxeda, Antoni, Auguet Sangrá, Carlota E., Concustell i Fargas, Amadeu, García Cano, Irene, Guilemany, J. M. (José María), Fauth, F.
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/125376
Acesso em linha:https://hdl.handle.net/2445/125376
Access Level:acceso abierto
Palavra-chave:Sincrotrons
Raigs X
Revestiment metàl·lic
Compostos intermetàl·lics
Synchrotrons
X-rays
Metal coating
Intermetallic compounds
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repository_id_str
spelling Ordering kinetics evaluation of FeAl powdersCinca i Luis, NúriaIsalgué Buxeda, AntoniAuguet Sangrá, Carlota E.Concustell i Fargas, AmadeuGarcía Cano, IreneGuilemany, J. M. (José María)Fauth, F.SincrotronsRaigs XRevestiment metàl·licCompostos intermetàl·licsSynchrotronsX-raysMetal coatingIntermetallic compoundsIn this study, time resolved X-ray diffraction experiments using synchrotron X-ray radiation have been performed to get insight on the time and temperature dependent atomic ordering of an intermetallic Fe-40A1 (at.%) ball-milled powder. The target of the present study is to gain knowledge on the rapid heating processes occurring during Thermal Spray coating processes. Present results show that in the temperature range 400 degrees C - 550 degrees C, the evolution of the order can be followed and modelled by fitting the powder diffraction patterns collected within the first minutes after fast heating. Reasonable refinements have been obtained by assuming the presence of two domains corresponding to the ordered and disordered lattices. The lattice constant changes from 0.29165 nm in the ball-milled powder at room temperature to 0.29281 nm in the ordered phase after 3000 s at 550 degrees C. The growth of the ordered phase is proposed to be a vacancy-related process with an activation energy of 1.04 eV. Above 550 degrees C, the ordering kinetics appears too fast to be resolved using the few seconds time scale of the present experiments which is in agreement to thermal spray results conditions.Elsevier B.V.2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/125376Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1016/j.intermet.2017.08.011Intermetallics, 2017, vol. 91, p. 78-85https://doi.org/10.1016/j.intermet.2017.08.011cc-by-nc-nd (c) Elsevier B.V., 2017http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1253762026-05-27T06:46:51Z
dc.title.none.fl_str_mv Ordering kinetics evaluation of FeAl powders
title Ordering kinetics evaluation of FeAl powders
spellingShingle Ordering kinetics evaluation of FeAl powders
Cinca i Luis, Núria
Sincrotrons
Raigs X
Revestiment metàl·lic
Compostos intermetàl·lics
Synchrotrons
X-rays
Metal coating
Intermetallic compounds
title_short Ordering kinetics evaluation of FeAl powders
title_full Ordering kinetics evaluation of FeAl powders
title_fullStr Ordering kinetics evaluation of FeAl powders
title_full_unstemmed Ordering kinetics evaluation of FeAl powders
title_sort Ordering kinetics evaluation of FeAl powders
dc.creator.none.fl_str_mv Cinca i Luis, Núria
Isalgué Buxeda, Antoni
Auguet Sangrá, Carlota E.
Concustell i Fargas, Amadeu
García Cano, Irene
Guilemany, J. M. (José María)
Fauth, F.
author Cinca i Luis, Núria
author_facet Cinca i Luis, Núria
Isalgué Buxeda, Antoni
Auguet Sangrá, Carlota E.
Concustell i Fargas, Amadeu
García Cano, Irene
Guilemany, J. M. (José María)
Fauth, F.
author_role author
author2 Isalgué Buxeda, Antoni
Auguet Sangrá, Carlota E.
Concustell i Fargas, Amadeu
García Cano, Irene
Guilemany, J. M. (José María)
Fauth, F.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Sincrotrons
Raigs X
Revestiment metàl·lic
Compostos intermetàl·lics
Synchrotrons
X-rays
Metal coating
Intermetallic compounds
topic Sincrotrons
Raigs X
Revestiment metàl·lic
Compostos intermetàl·lics
Synchrotrons
X-rays
Metal coating
Intermetallic compounds
description In this study, time resolved X-ray diffraction experiments using synchrotron X-ray radiation have been performed to get insight on the time and temperature dependent atomic ordering of an intermetallic Fe-40A1 (at.%) ball-milled powder. The target of the present study is to gain knowledge on the rapid heating processes occurring during Thermal Spray coating processes. Present results show that in the temperature range 400 degrees C - 550 degrees C, the evolution of the order can be followed and modelled by fitting the powder diffraction patterns collected within the first minutes after fast heating. Reasonable refinements have been obtained by assuming the presence of two domains corresponding to the ordered and disordered lattices. The lattice constant changes from 0.29165 nm in the ball-milled powder at room temperature to 0.29281 nm in the ordered phase after 3000 s at 550 degrees C. The growth of the ordered phase is proposed to be a vacancy-related process with an activation energy of 1.04 eV. Above 550 degrees C, the ordering kinetics appears too fast to be resolved using the few seconds time scale of the present experiments which is in agreement to thermal spray results conditions.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/125376
url https://hdl.handle.net/2445/125376
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.intermet.2017.08.011
Intermetallics, 2017, vol. 91, p. 78-85
https://doi.org/10.1016/j.intermet.2017.08.011
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier B.V., 2017
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier B.V., 2017
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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