Revealing the dynamic transformation of austenite to bainite during uniaxial warm compression through in-situ synchrotron X-ray diffraction

Detalhes bibliográficos
Autor(a) principal: Bevilaqua, William Lemos
Data de Publicação: 2021
Outros Autores: Epp, Jérémy, Meyer, Heiner, Dong, Juan, Roelofs, Hans, Rocha, Alexandre da Silva, Reguly, Afonso
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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spelling 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
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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
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url http://hdl.handle.net/10183/219660
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Metals. Basel, Suíça. Vol. 11, n. 3 (Mar. 2021), Art. 467, 14 p.
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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