An in situ high-temperature X-Ray diffraction study of phase transformations in maraging 300 steel
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1822182351648587776 |
dc.identifier.doi.none.fl_str_mv |
10.4028/www.scientific.net/DDF.371.73 |