Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy

Detalhes bibliográficos
Autor(a) principal: Santos,Alan dos
Data de Publicação: 2019
Outros Autores: Campanelli,Leonardo Contri, Silva,Paulo Sergio Carvalho Pereira da, Vilar,Rui, Almeida,Maria Amélia Martins de, Kuznetsov,Alexei, Achete,Carlos Alberto, Bolfarini,Claudemiro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000400204
Resumo: The objective of this investigation was to evaluate the influence of surface modification by femtosecond laser (with average fluence of 0.6 J/cm2 and scanning speed of 0.1 mm/s) on the fatigue resistance of Ti-6Al-4V ELI alloy. A significant reduction in the fatigue strength of the material modified by laser was observed. Residual tensile stresses generated during surface modification were negligible, presenting lower values than those found on the unmodified surface. Based on a recently developed and published prediction model, the reduction of the fatigue strength was ascribed to the surface roughness created during the laser treatment of the alloy. An evidence was that the fatigue crack nucleation occurred in the modified region, rather than at the edge of the rectangular specimens as in the untreated condition.
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spelling Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI AlloyTi-6Al-4V ELIsurface modificationlaserfemtosecondfatigueThe objective of this investigation was to evaluate the influence of surface modification by femtosecond laser (with average fluence of 0.6 J/cm2 and scanning speed of 0.1 mm/s) on the fatigue resistance of Ti-6Al-4V ELI alloy. A significant reduction in the fatigue strength of the material modified by laser was observed. Residual tensile stresses generated during surface modification were negligible, presenting lower values than those found on the unmodified surface. Based on a recently developed and published prediction model, the reduction of the fatigue strength was ascribed to the surface roughness created during the laser treatment of the alloy. An evidence was that the fatigue crack nucleation occurred in the modified region, rather than at the edge of the rectangular specimens as in the untreated condition.ABM, ABC, ABPol2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000400204Materials Research v.22 n.4 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2019-0118info:eu-repo/semantics/openAccessSantos,Alan dosCampanelli,Leonardo ContriSilva,Paulo Sergio Carvalho Pereira daVilar,RuiAlmeida,Maria Amélia Martins deKuznetsov,AlexeiAchete,Carlos AlbertoBolfarini,Claudemiroeng2019-06-28T00:00:00Zoai:scielo:S1516-14392019000400204Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2019-06-28T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy
title Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy
spellingShingle Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy
Santos,Alan dos
Ti-6Al-4V ELI
surface modification
laser
femtosecond
fatigue
title_short Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy
title_full Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy
title_fullStr Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy
title_full_unstemmed Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy
title_sort Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy
author Santos,Alan dos
author_facet Santos,Alan dos
Campanelli,Leonardo Contri
Silva,Paulo Sergio Carvalho Pereira da
Vilar,Rui
Almeida,Maria Amélia Martins de
Kuznetsov,Alexei
Achete,Carlos Alberto
Bolfarini,Claudemiro
author_role author
author2 Campanelli,Leonardo Contri
Silva,Paulo Sergio Carvalho Pereira da
Vilar,Rui
Almeida,Maria Amélia Martins de
Kuznetsov,Alexei
Achete,Carlos Alberto
Bolfarini,Claudemiro
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos,Alan dos
Campanelli,Leonardo Contri
Silva,Paulo Sergio Carvalho Pereira da
Vilar,Rui
Almeida,Maria Amélia Martins de
Kuznetsov,Alexei
Achete,Carlos Alberto
Bolfarini,Claudemiro
dc.subject.por.fl_str_mv Ti-6Al-4V ELI
surface modification
laser
femtosecond
fatigue
topic Ti-6Al-4V ELI
surface modification
laser
femtosecond
fatigue
description The objective of this investigation was to evaluate the influence of surface modification by femtosecond laser (with average fluence of 0.6 J/cm2 and scanning speed of 0.1 mm/s) on the fatigue resistance of Ti-6Al-4V ELI alloy. A significant reduction in the fatigue strength of the material modified by laser was observed. Residual tensile stresses generated during surface modification were negligible, presenting lower values than those found on the unmodified surface. Based on a recently developed and published prediction model, the reduction of the fatigue strength was ascribed to the surface roughness created during the laser treatment of the alloy. An evidence was that the fatigue crack nucleation occurred in the modified region, rather than at the edge of the rectangular specimens as in the untreated condition.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv 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://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000400204
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000400204
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2019-0118
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.22 n.4 2019
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212674834530304

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