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Overloading effect on transient fatigue crack growth of Ti-6Al-4V parts produced by Laser Powder Bed Fusion

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datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.fosEngenharia e Tecnologia::Engenharia Civil
datacite.subject.fosCiências Naturais::Outras Ciências Naturais
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorBorrego, L. P.
dc.contributor.authorJesus, J. S.
dc.contributor.authorFerreira, J. A. M.
dc.contributor.authorCosta, J. D.
dc.contributor.authorCapela, C.
dc.date.accessioned2026-04-17T14:38:38Z
dc.date.available2026-04-17T14:38:38Z
dc.date.issued2022
dc.description.abstractThe fatigue crack growth (FCGR) behavior of titanium alloy Ti-6Al-4V submitted to Hot Isostatic Pressing (HIP) through CT specimens manufactured by Laser Powder Bed Fusion (LPBF) is analyzed. Both the crack growth under constant amplitude loading and the transient crack growth behavior after the application of overloads were studied. Crack closure induced by plasticity for the stress ratio R=0 was observed at the Paris regime. The applied overloads for OLR=2 at R=0 caused a FCGR retardation due to the increase of crack closure effect induced by plasticity resulting from the overloads. Rapid transient periods were registered due to small zone affected by the overloads.eng
dc.description.sponsorshipThe authors would like to acknowledge the sponsoring under project no. 028789, financed by the European Regional Development Fund (FEDER), through the Portugal 2020 program (PT2020), under the Regional Operational Program of the Center (CENTRO-01-0145-FEDER-028789). This research is also sponsored by FEDER funds through the program COMPETE – Programa Operacional Factores de Competitividade – and by national funds through FCT – Fundação para a Ciência e a Tecnologia –, under the project UIDB/00285/2020. Finally, the authors acknowledge the project POCI-01-0247-FEDER-042536, financed by European Funds, through program COMPETE2020, under the Eureka smart label S0129-AddDies.
dc.identifier.citationL.P. Borrego, J.S. Jesus, J.A.M. Ferreira, J.D. Costa, C. Capela, Overloading effect on transient fatigue crack growth of Ti-6Al-4V parts produced by Laser Powder Bed Fusion, Procedia Structural Integrity, Volume 37, 2022, Pages 330-335, ISSN 2452-3216, https://doi.org/10.1016/j.prostr.2022.01.092.
dc.identifier.doi10.1016/j.prostr.2022.01.092
dc.identifier.eissn2452-3216
dc.identifier.urihttp://hdl.handle.net/10400.8/16142
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationCentre for Mechanical Enginnering, Materials and Processes
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S2452321622001007?via%3Dihub
dc.relation.ispartofProcedia Structural Integrity
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectType your keywords here
dc.subjectseparated by semicolons
dc.titleOverloading effect on transient fatigue crack growth of Ti-6Al-4V parts produced by Laser Powder Bed Fusioneng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/00285/2020
oaire.awardTitleCentre for Mechanical Enginnering, Materials and Processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT
oaire.citation.endPage335
oaire.citation.startPage330
oaire.citation.titleProcedia Structural Integrity
oaire.citation.volume37
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCapela
person.givenNameCarlos
person.identifier.ciencia-id9B1E-6857-3D6B
person.identifier.orcid0000-0003-3334-4945
person.identifier.ridG-6395-2016
person.identifier.scopus-author-id7801358401
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isAuthorOfPublication.latestForDiscovery9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isProjectOfPublication0a3418ca-35b9-4670-a826-154cceca5a89
relation.isProjectOfPublication.latestForDiscovery0a3418ca-35b9-4670-a826-154cceca5a89

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The fatigue crack growth (FCGR) behavior of titanium alloy Ti-6Al-4V submitted to Hot Isostatic Pressing (HIP) through CT specimens manufactured by Laser Powder Bed Fusion (LPBF) is analyzed. Both the crack growth under constant amplitude loading and the transient crack growth behavior after the application of overloads were studied. Crack closure induced by plasticity for the stress ratio R=0 was observed at the Paris regime. The applied overloads for OLR=2 at R=0 caused a FCGR retardation due to the increase of crack closure effect induced by plasticity resulting from the overloads. Rapid transient periods were registered due to small zone affected by the overloads.
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