Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/219660 |
Resumo: | In this work, the microstructural evolution during the dynamic transformation of austenite to bainite was directly observed by in-situ high energy synchrotron X-ray diffraction measurements during warm uniaxial compression performed at the P07 beamline of PETRA III, DESY (Deutsches Elektronen-Synchrotron). Plastic deformation triggers the phase transformation, which is continuously stimulated by the introduction of dynamic dislocations into the austenite. This scenario accelerates the kinetics of bainite formation in comparison with conventional isothermal treatment. No mechanical stabilization of austenite was observed during dynamic transformation. Evidence of carbon partitioning between phases during plastic deformation was obtained. Further post-process investigations suggest that the bainitic microstructure developed during compression is oriented perpendicular to the loading direction. The findings open up new possibilities to design carbide-free bainitic microstructures directly via thermomechanical processing. |
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Bevilaqua, William LemosEpp, JérémyMeyer, HeinerDong, JuanRoelofs, HansRocha, Alexandre da SilvaReguly, Afonso2021-04-09T04:24:10Z20212075-4701http://hdl.handle.net/10183/219660001123954In this work, the microstructural evolution during the dynamic transformation of austenite to bainite was directly observed by in-situ high energy synchrotron X-ray diffraction measurements during warm uniaxial compression performed at the P07 beamline of PETRA III, DESY (Deutsches Elektronen-Synchrotron). Plastic deformation triggers the phase transformation, which is continuously stimulated by the introduction of dynamic dislocations into the austenite. This scenario accelerates the kinetics of bainite formation in comparison with conventional isothermal treatment. No mechanical stabilization of austenite was observed during dynamic transformation. Evidence of carbon partitioning between phases during plastic deformation was obtained. Further post-process investigations suggest that the bainitic microstructure developed during compression is oriented perpendicular to the loading direction. The findings open up new possibilities to design carbide-free bainitic microstructures directly via thermomechanical processing.application/pdfengMetals. Basel, Suíça. Vol. 11, n. 3 (Mar. 2021), Art. 467, 14 p.AçoTransformação mecânicaDifração de raios XDynamic transformationThermomechanical processingBainiteIn-situ X-ray diffractionRevealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffractionEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001123954.pdf.txt001123954.pdf.txtExtracted Texttext/plain48073http://www.lume.ufrgs.br/bitstream/10183/219660/2/001123954.pdf.txt07f55cdfc8c6b37607d592962c40dfbdMD52ORIGINAL001123954.pdfTexto completoapplication/pdf21466680http://www.lume.ufrgs.br/bitstream/10183/219660/1/001123954.pdf488daf9586cf778542fd26a96cec6ed3MD5110183/2196602021-05-07 04:37:08.586391oai:www.lume.ufrgs.br:10183/219660Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-07T07:37:08Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction |
title |
Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction |
spellingShingle |
Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction Bevilaqua, William Lemos Aço Transformação mecânica Difração de raios X Dynamic transformation Thermomechanical processing Bainite In-situ X-ray diffraction |
title_short |
Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction |
title_full |
Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction |
title_fullStr |
Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction |
title_full_unstemmed |
Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction |
title_sort |
Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction |
author |
Bevilaqua, William Lemos |
author_facet |
Bevilaqua, William Lemos Epp, Jérémy Meyer, Heiner Dong, Juan Roelofs, Hans Rocha, Alexandre da Silva Reguly, Afonso |
author_role |
author |
author2 |
Epp, Jérémy Meyer, Heiner Dong, Juan Roelofs, Hans Rocha, Alexandre da Silva Reguly, Afonso |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Bevilaqua, William Lemos Epp, Jérémy Meyer, Heiner Dong, Juan Roelofs, Hans Rocha, Alexandre da Silva Reguly, Afonso |
dc.subject.por.fl_str_mv |
Aço Transformação mecânica Difração de raios X |
topic |
Aço Transformação mecânica Difração de raios X Dynamic transformation Thermomechanical processing Bainite In-situ X-ray diffraction |
dc.subject.eng.fl_str_mv |
Dynamic transformation Thermomechanical processing Bainite In-situ X-ray diffraction |
description |
In this work, the microstructural evolution during the dynamic transformation of austenite to bainite was directly observed by in-situ high energy synchrotron X-ray diffraction measurements during warm uniaxial compression performed at the P07 beamline of PETRA III, DESY (Deutsches Elektronen-Synchrotron). Plastic deformation triggers the phase transformation, which is continuously stimulated by the introduction of dynamic dislocations into the austenite. This scenario accelerates the kinetics of bainite formation in comparison with conventional isothermal treatment. No mechanical stabilization of austenite was observed during dynamic transformation. Evidence of carbon partitioning between phases during plastic deformation was obtained. Further post-process investigations suggest that the bainitic microstructure developed during compression is oriented perpendicular to the loading direction. The findings open up new possibilities to design carbide-free bainitic microstructures directly via thermomechanical processing. |
publishDate |
2021 |
dc.date.accessioned.fl_str_mv |
2021-04-09T04:24:10Z |
dc.date.issued.fl_str_mv |
2021 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/219660 |
dc.identifier.issn.pt_BR.fl_str_mv |
2075-4701 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001123954 |
identifier_str_mv |
2075-4701 001123954 |
url |
http://hdl.handle.net/10183/219660 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Metals. Basel, Suíça. Vol. 11, n. 3 (Mar. 2021), Art. 467, 14 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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