Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion

The purpose of the present study is to investigate the effect of post heat treatment as well as the manufacturing strategy on the microstructure evolution during martensite decomposition of Ti–6Al–4V manufactured by laser powder bed fusion (LPBF). The microstructural evolution was tracked using in s...

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Detalhes bibliográficos
Autores: Lakroune, Yassine, Connétable, Damien, Hugues, Jonathan, Hermantier, Paul, Barriobero Vila, Pere|||0000-0002-4412-3729, Dehmas, Moukrane
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/386504
Acesso em linha:https://hdl.handle.net/2117/386504
https://dx.doi.org/10.1016/j.jmrt.2023.01.123
Access Level:acceso abierto
Palavra-chave:Titanium alloys
Laser powder bed fusion
Ti–6Al–4V titanium Alloy
Phase transformation kinetics
Martensite decomposition
High-energy synchrotron diffraction
Titani -- Aliatges
Àrees temàtiques de la UPC::Enginyeria dels materials
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oai_identifier_str oai:upcommons.upc.edu:2117/386504
network_acronym_str ES
network_name_str España
repository_id_str
spelling Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusionLakroune, YassineConnétable, DamienHugues, JonathanHermantier, PaulBarriobero Vila, Pere|||0000-0002-4412-3729Dehmas, MoukraneTitanium alloysLaser powder bed fusionTi–6Al–4V titanium AlloyPhase transformation kineticsMartensite decompositionHigh-energy synchrotron diffractionTitani -- AliatgesÀrees temàtiques de la UPC::Enginyeria dels materialsThe purpose of the present study is to investigate the effect of post heat treatment as well as the manufacturing strategy on the microstructure evolution during martensite decomposition of Ti–6Al–4V manufactured by laser powder bed fusion (LPBF). The microstructural evolution was tracked using in situ high-energy synchrotron X-ray diffraction and differential thermal analysis. The phase fraction, the mean lattice parameters, d-spacing and the Full Width at Half Maximum (FWHM) variations were determined by Rietveld refinement from XRD patterns during continuous heating up to the single ß phase domain with different heating rates and manufacturing strategies. The complementarity of characterization tools clearly evidences a shift of the a/a’ ¿ ß transformation kinetics toward higher temperatures as the heating rate increases. The variations in transformation kinetics are discussed with regard to the predicted values at thermodynamic equilibrium. In addition, the combined analysis of d-spacing and FWHM shows the deviations from linearity at intermediate and high temperatures that are related to the heating and manufacturing strategy. These variations were analyzed in regard of internal stress relaxation or changes of chemical composition. Moreover, the anisotropic elastic distortions in martensite a’ caused by the manufacturing strategy were examined.Peer ReviewedElsevier20232023-03-0120232023-04-21journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/386504https://dx.doi.org/10.1016/j.jmrt.2023.01.123reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3865042026-05-27T15:37:01Z
dc.title.none.fl_str_mv Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion
title Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion
spellingShingle Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion
Lakroune, Yassine
Titanium alloys
Laser powder bed fusion
Ti–6Al–4V titanium Alloy
Phase transformation kinetics
Martensite decomposition
High-energy synchrotron diffraction
Titani -- Aliatges
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion
title_full Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion
title_fullStr Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion
title_full_unstemmed Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion
title_sort Microstructural evolution during post heat treatment of the Ti–6Al–4V alloy manufactured by laser powder bed fusion
dc.creator.none.fl_str_mv Lakroune, Yassine
Connétable, Damien
Hugues, Jonathan
Hermantier, Paul
Barriobero Vila, Pere|||0000-0002-4412-3729
Dehmas, Moukrane
author Lakroune, Yassine
author_facet Lakroune, Yassine
Connétable, Damien
Hugues, Jonathan
Hermantier, Paul
Barriobero Vila, Pere|||0000-0002-4412-3729
Dehmas, Moukrane
author_role author
author2 Connétable, Damien
Hugues, Jonathan
Hermantier, Paul
Barriobero Vila, Pere|||0000-0002-4412-3729
Dehmas, Moukrane
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Titanium alloys
Laser powder bed fusion
Ti–6Al–4V titanium Alloy
Phase transformation kinetics
Martensite decomposition
High-energy synchrotron diffraction
Titani -- Aliatges
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Titanium alloys
Laser powder bed fusion
Ti–6Al–4V titanium Alloy
Phase transformation kinetics
Martensite decomposition
High-energy synchrotron diffraction
Titani -- Aliatges
Àrees temàtiques de la UPC::Enginyeria dels materials
description The purpose of the present study is to investigate the effect of post heat treatment as well as the manufacturing strategy on the microstructure evolution during martensite decomposition of Ti–6Al–4V manufactured by laser powder bed fusion (LPBF). The microstructural evolution was tracked using in situ high-energy synchrotron X-ray diffraction and differential thermal analysis. The phase fraction, the mean lattice parameters, d-spacing and the Full Width at Half Maximum (FWHM) variations were determined by Rietveld refinement from XRD patterns during continuous heating up to the single ß phase domain with different heating rates and manufacturing strategies. The complementarity of characterization tools clearly evidences a shift of the a/a’ ¿ ß transformation kinetics toward higher temperatures as the heating rate increases. The variations in transformation kinetics are discussed with regard to the predicted values at thermodynamic equilibrium. In addition, the combined analysis of d-spacing and FWHM shows the deviations from linearity at intermediate and high temperatures that are related to the heating and manufacturing strategy. These variations were analyzed in regard of internal stress relaxation or changes of chemical composition. Moreover, the anisotropic elastic distortions in martensite a’ caused by the manufacturing strategy were examined.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-03-01
2023
2023-04-21
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/386504
https://dx.doi.org/10.1016/j.jmrt.2023.01.123
url https://hdl.handle.net/2117/386504
https://dx.doi.org/10.1016/j.jmrt.2023.01.123
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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