Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1051/matecconf/201816521002 http://hdl.handle.net/11449/171087 |
Resumo: | In this work 300M steel samples is used. This high-strength steel is used in aeronautic and aerospace industry and other structural applications. Initially the 300 M steel sample was submitted to a heat treatment to obtain a bainític structure. It was heated at 850 °C for 30 minutes and after that, cooled at 300 °C for 60 minutes. Afterwards two types of surface treatments have been employed: (a) using low-power laser CO2 (125 W) for introducing carbon into the surface and (b) plasma nitriding at a temperature of 500° C for 3 hours. After surface treatment, the metallographic preparation was carried out and the observations with optical and electronic microscopy have been made. The analysis of the coating showed an increase in the hardness of layer formed on the surface, mainly, among the nitriding layers. The mechanical properties were analyzed using tensile and fatigue tests. The results showed that the mechanical properties in tensile tests were strongly affected by the bainitic microstructure. The steel that received the nitriding surface by plasma treatment showed better fatigue behavior. The results are very promising because the layer formed on steel surface, in addition to improving the fatigue life, still improves protection against corrosion and wear. |
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Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma NitridingIn this work 300M steel samples is used. This high-strength steel is used in aeronautic and aerospace industry and other structural applications. Initially the 300 M steel sample was submitted to a heat treatment to obtain a bainític structure. It was heated at 850 °C for 30 minutes and after that, cooled at 300 °C for 60 minutes. Afterwards two types of surface treatments have been employed: (a) using low-power laser CO2 (125 W) for introducing carbon into the surface and (b) plasma nitriding at a temperature of 500° C for 3 hours. After surface treatment, the metallographic preparation was carried out and the observations with optical and electronic microscopy have been made. The analysis of the coating showed an increase in the hardness of layer formed on the surface, mainly, among the nitriding layers. The mechanical properties were analyzed using tensile and fatigue tests. The results showed that the mechanical properties in tensile tests were strongly affected by the bainitic microstructure. The steel that received the nitriding surface by plasma treatment showed better fatigue behavior. The results are very promising because the layer formed on steel surface, in addition to improving the fatigue life, still improves protection against corrosion and wear.Faculdade de Engenharia de Guaratinguetá - FEG UNESPInstituto de Estudos Avançados - IEAv Div. FotônicaFaculdade de Engenharia de Guaratinguetá - FEG UNESPUniversidade Estadual Paulista (Unesp)Div. FotônicaAbdalla, Antonio J. [UNESP]Santos, Douglas [UNESP]Vasconcelos, GetúlioBaggio-Scheid, Vladimir H.Silva, Deivid F. [UNESP]2018-12-11T16:53:51Z2018-12-11T16:53:51Z2018-05-25info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectapplication/pdfhttp://dx.doi.org/10.1051/matecconf/201816521002MATEC Web of Conferences, v. 165.2261-236Xhttp://hdl.handle.net/11449/17108710.1051/matecconf/2018165210022-s2.0-850481408532-s2.0-85048140853.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMATEC Web of Conferencesinfo:eu-repo/semantics/openAccess2023-10-12T06:07:34Zoai:repositorio.unesp.br:11449/171087Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:41:29.960973Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding |
title |
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding |
spellingShingle |
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding Abdalla, Antonio J. [UNESP] |
title_short |
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding |
title_full |
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding |
title_fullStr |
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding |
title_full_unstemmed |
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding |
title_sort |
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding |
author |
Abdalla, Antonio J. [UNESP] |
author_facet |
Abdalla, Antonio J. [UNESP] Santos, Douglas [UNESP] Vasconcelos, Getúlio Baggio-Scheid, Vladimir H. Silva, Deivid F. [UNESP] |
author_role |
author |
author2 |
Santos, Douglas [UNESP] Vasconcelos, Getúlio Baggio-Scheid, Vladimir H. Silva, Deivid F. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Div. Fotônica |
dc.contributor.author.fl_str_mv |
Abdalla, Antonio J. [UNESP] Santos, Douglas [UNESP] Vasconcelos, Getúlio Baggio-Scheid, Vladimir H. Silva, Deivid F. [UNESP] |
description |
In this work 300M steel samples is used. This high-strength steel is used in aeronautic and aerospace industry and other structural applications. Initially the 300 M steel sample was submitted to a heat treatment to obtain a bainític structure. It was heated at 850 °C for 30 minutes and after that, cooled at 300 °C for 60 minutes. Afterwards two types of surface treatments have been employed: (a) using low-power laser CO2 (125 W) for introducing carbon into the surface and (b) plasma nitriding at a temperature of 500° C for 3 hours. After surface treatment, the metallographic preparation was carried out and the observations with optical and electronic microscopy have been made. The analysis of the coating showed an increase in the hardness of layer formed on the surface, mainly, among the nitriding layers. The mechanical properties were analyzed using tensile and fatigue tests. The results showed that the mechanical properties in tensile tests were strongly affected by the bainitic microstructure. The steel that received the nitriding surface by plasma treatment showed better fatigue behavior. The results are very promising because the layer formed on steel surface, in addition to improving the fatigue life, still improves protection against corrosion and wear. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T16:53:51Z 2018-12-11T16:53:51Z 2018-05-25 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1051/matecconf/201816521002 MATEC Web of Conferences, v. 165. 2261-236X http://hdl.handle.net/11449/171087 10.1051/matecconf/201816521002 2-s2.0-85048140853 2-s2.0-85048140853.pdf |
url |
http://dx.doi.org/10.1051/matecconf/201816521002 http://hdl.handle.net/11449/171087 |
identifier_str_mv |
MATEC Web of Conferences, v. 165. 2261-236X 10.1051/matecconf/201816521002 2-s2.0-85048140853 2-s2.0-85048140853.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
MATEC Web of Conferences |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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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1808128403098828800 |