An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel

Detalhes bibliográficos
Autor(a) principal: Reis, Adriano Goncąlves Dos [UNESP]
Data de Publicação: 2016
Outros Autores: Reis, Danieli Aparecida Pereira, Abdalla, Antônio Jorge, Couto, Antônio Augusto, Otubo, Jorge
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
DOI: 10.4028/www.scientific.net/DDF.371.73
Texto Completo: http://dx.doi.org/10.4028/www.scientific.net/DDF.371.73
http://hdl.handle.net/11449/169501
Resumo: An in situ high-temperature X-ray diffraction (HTXRD) study in maraging 300 steel was carried out to study the martensite to austenite transformation and effect of time of exposure in the austenite reversion below austenite start temperature. Solution annealed materials were subjected to controlled heating-holding cycles. The first sample was heated at a rate of 10°C/min from room temperature to 800°C, showing that the microstructure is completely martensitic (α110) until 600°C. From 650°C until 800°C, the microstructure is gradually changing from martensitic to austenitic, showed by the increasing peaks of λ111 and reducing peaks of α110. At 800°C the microstructure is completely austenitic (λ111). Another sample was heated at 10°C/min from room temperature to 600°C and held for 4 hours. At 600°C, at 0 h time of exposure, only a martensitic peak was observed. An austenite peak can be observed after some time of exposure at this temperature. The volume fraction of austenite increased with increasing time of exposure at 600°C, reaching 50/50 volume fraction after 4 hours of exposure. XRD diffraction patterns for the same sample that was held for 4 hours at 600°C and then cooled down in air to room temperature showed the same intensity of austenite and martensitic peaks found in situ at 600°C for 4 hours (retained austenite), with the volume fraction of 50/50 of austenite and martensite phases. The HTXRD technique can be used to identify and quantify martensite to austenite transformation and austenite retention.
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spelling An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steelHigh-temperature X-ray diffractionMaraging 300 steelPhase transformationReverted austeniteAn in situ high-temperature X-ray diffraction (HTXRD) study in maraging 300 steel was carried out to study the martensite to austenite transformation and effect of time of exposure in the austenite reversion below austenite start temperature. Solution annealed materials were subjected to controlled heating-holding cycles. The first sample was heated at a rate of 10°C/min from room temperature to 800°C, showing that the microstructure is completely martensitic (α110) until 600°C. From 650°C until 800°C, the microstructure is gradually changing from martensitic to austenitic, showed by the increasing peaks of λ111 and reducing peaks of α110. At 800°C the microstructure is completely austenitic (λ111). Another sample was heated at 10°C/min from room temperature to 600°C and held for 4 hours. At 600°C, at 0 h time of exposure, only a martensitic peak was observed. An austenite peak can be observed after some time of exposure at this temperature. The volume fraction of austenite increased with increasing time of exposure at 600°C, reaching 50/50 volume fraction after 4 hours of exposure. XRD diffraction patterns for the same sample that was held for 4 hours at 600°C and then cooled down in air to room temperature showed the same intensity of austenite and martensitic peaks found in situ at 600°C for 4 hours (retained austenite), with the volume fraction of 50/50 of austenite and martensite phases. The HTXRD technique can be used to identify and quantify martensite to austenite transformation and austenite retention.Instituto de Ciência e Tecnologia UNESP Univ Estadual Paulista, Rod. Presidente DutraCentro de Ciência e Tecnologia de Materiais IPEN-Instituto de Pesquisas Energéticas e Nucleares, Av. Prof. Lineu Prestes, 2242Instituto de Ciência e Tecnologia UNIFESP-Universidade Federal de Saõ Paulo, Rua Talim, 330Materiais e Processos de Fabricacąõ ITA-Instituto Tecnológico de Aeronaútica, Pr. Marechal Eduardo Gomes, 50Fotônica IEAv-Instituto de Estudos Avancądos, Trevo Coronel Aviador Jose Alberto Albano do AmaranteDepartamento de Engenharia de Materiais UPM-Universidade Presbiteriana Mackenzie, Rua da Consolacąõ, 930Instituto de Ciência e Tecnologia UNESP Univ Estadual Paulista, Rod. Presidente DutraUniversidade Estadual Paulista (Unesp)IPEN-Instituto de Pesquisas Energéticas e NuclearesUniversidade Federal de São Paulo (UNIFESP)ITA-Instituto Tecnológico de AeronaúticaIEAv-Instituto de Estudos AvancądosUPM-Universidade Presbiteriana MackenzieReis, Adriano Goncąlves Dos [UNESP]Reis, Danieli Aparecida PereiraAbdalla, Antônio JorgeCouto, Antônio AugustoOtubo, Jorge2018-12-11T16:46:10Z2018-12-11T16:46:10Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article73-77http://dx.doi.org/10.4028/www.scientific.net/DDF.371.73Defect and Diffusion Forum, v. 371, p. 73-77.1012-0386http://hdl.handle.net/11449/16950110.4028/www.scientific.net/DDF.371.732-s2.0-8501400332564073087391221490000-0001-6465-4538Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengDefect and Diffusion Forum0,129info:eu-repo/semantics/openAccess2021-10-23T16:01:01Zoai:repositorio.unesp.br:11449/169501Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:08:33.222599Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
title An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
spellingShingle An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
Reis, Adriano Goncąlves Dos [UNESP]
High-temperature X-ray diffraction
Maraging 300 steel
Phase transformation
Reverted austenite
Reis, Adriano Goncąlves Dos [UNESP]
High-temperature X-ray diffraction
Maraging 300 steel
Phase transformation
Reverted austenite
title_short An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
title_full An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
title_fullStr An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
title_full_unstemmed An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
title_sort An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
author Reis, Adriano Goncąlves Dos [UNESP]
author_facet Reis, Adriano Goncąlves Dos [UNESP]
Reis, Adriano Goncąlves Dos [UNESP]
Reis, Danieli Aparecida Pereira
Abdalla, Antônio Jorge
Couto, Antônio Augusto
Otubo, Jorge
Reis, Danieli Aparecida Pereira
Abdalla, Antônio Jorge
Couto, Antônio Augusto
Otubo, Jorge
author_role author
author2 Reis, Danieli Aparecida Pereira
Abdalla, Antônio Jorge
Couto, Antônio Augusto
Otubo, Jorge
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
IPEN-Instituto de Pesquisas Energéticas e Nucleares
Universidade Federal de São Paulo (UNIFESP)
ITA-Instituto Tecnológico de Aeronaútica
IEAv-Instituto de Estudos Avancądos
UPM-Universidade Presbiteriana Mackenzie
dc.contributor.author.fl_str_mv Reis, Adriano Goncąlves Dos [UNESP]
Reis, Danieli Aparecida Pereira
Abdalla, Antônio Jorge
Couto, Antônio Augusto
Otubo, Jorge
dc.subject.por.fl_str_mv High-temperature X-ray diffraction
Maraging 300 steel
Phase transformation
Reverted austenite
topic High-temperature X-ray diffraction
Maraging 300 steel
Phase transformation
Reverted austenite
description An in situ high-temperature X-ray diffraction (HTXRD) study in maraging 300 steel was carried out to study the martensite to austenite transformation and effect of time of exposure in the austenite reversion below austenite start temperature. Solution annealed materials were subjected to controlled heating-holding cycles. The first sample was heated at a rate of 10°C/min from room temperature to 800°C, showing that the microstructure is completely martensitic (α110) until 600°C. From 650°C until 800°C, the microstructure is gradually changing from martensitic to austenitic, showed by the increasing peaks of λ111 and reducing peaks of α110. At 800°C the microstructure is completely austenitic (λ111). Another sample was heated at 10°C/min from room temperature to 600°C and held for 4 hours. At 600°C, at 0 h time of exposure, only a martensitic peak was observed. An austenite peak can be observed after some time of exposure at this temperature. The volume fraction of austenite increased with increasing time of exposure at 600°C, reaching 50/50 volume fraction after 4 hours of exposure. XRD diffraction patterns for the same sample that was held for 4 hours at 600°C and then cooled down in air to room temperature showed the same intensity of austenite and martensitic peaks found in situ at 600°C for 4 hours (retained austenite), with the volume fraction of 50/50 of austenite and martensite phases. The HTXRD technique can be used to identify and quantify martensite to austenite transformation and austenite retention.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01
2018-12-11T16:46:10Z
2018-12-11T16:46:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.4028/www.scientific.net/DDF.371.73
Defect and Diffusion Forum, v. 371, p. 73-77.
1012-0386
http://hdl.handle.net/11449/169501
10.4028/www.scientific.net/DDF.371.73
2-s2.0-85014003325
6407308739122149
0000-0001-6465-4538
url http://dx.doi.org/10.4028/www.scientific.net/DDF.371.73
http://hdl.handle.net/11449/169501
identifier_str_mv Defect and Diffusion Forum, v. 371, p. 73-77.
1012-0386
10.4028/www.scientific.net/DDF.371.73
2-s2.0-85014003325
6407308739122149
0000-0001-6465-4538
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Defect and Diffusion Forum
0,129
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 73-77
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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dc.identifier.doi.none.fl_str_mv 10.4028/www.scientific.net/DDF.371.73