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Effect of heat treatment on the fatigue crack growth behaviour in additive manufactured AISI 18Ni300 steel

2019-08Artigo científico Acesso restrito
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dc.contributor.authorSantos, L.M.S.
dc.contributor.authorBorrego, L.P.
dc.contributor.authorFerreira, J.A.M.
dc.contributor.authorJesus, J. de
dc.contributor.authorCosta, J.D.
dc.contributor.authorCapela, C.
dc.date.accessioned2026-09-30T13:03:20Z
dc.date.available2026-09-30T13:03:20Z
dc.date.issued2019-08
dc.description.abstractAdditive manufacturing (AM) technologies have a strong appeal to the industry targeting low-volume production for specific applications, as they currently provide mechanical properties under static loading comparable to those of conventionally fabricated parts. The current study presents results of fatigue crack propagation obtained using standard 6 mm thick Compact Tension specimens (CT) laser sintered and tested at R = 0. The main parameter studied was the effect of post-manufacturing heat treatment on the stable crack propagation and the transient behaviour after overloads. It was found that the thermal treatment caused important changes on both microstructure and crack path and promoted the increase of the fatigue crack propagation resistance. Both material microstructures exhibit significant transient crack propagation retardation after overloads probably by crack bifurcation effect, as the crack closure phenomena was not observed.eng
dc.description.sponsorshipThe authors would like to acknowledge the sponsoring under the project number 016713 (PTDC/EMS-PRO/1356/2014) financed by Project 3599 Promover a Produção Científica e Desenvolvimento Tecnológico e a Constituição de Redes Temáticas (3599-PPCDT) and FEDER funds and also EROFIO S.A. industry for the supply of the testing samples.
dc.identifier.citationL.M.S. Santos, L.P. Borrego, J.A.M. Ferreira, J. de Jesus, J.D. Costa, C. Capela, Effect of heat treatment on the fatigue crack growth behaviour in additive manufactured AISI 18Ni300 steel, Theoretical and Applied Fracture Mechanics, Volume 102, 2019, Pages 10-15, ISSN 0167-8442, https://doi.org/10.1016/j.tafmec.2019.04.005.
dc.identifier.doi10.1016/j.tafmec.2019.04.005
dc.identifier.issn0167-8442
dc.identifier.urihttp://hdl.handle.net/10400.8/16924
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier BV
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0167844218305251
dc.relation.ispartofTheoretical and Applied Fracture Mechanics
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectFatigue crack propagation
dc.subjectAdditive manufacturing
dc.subjectOverloads
dc.subjectMaraging steels
dc.titleEffect of heat treatment on the fatigue crack growth behaviour in additive manufactured AISI 18Ni300 steeleng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage15
oaire.citation.startPage10
oaire.citation.titleTheoretical and Applied Fracture Mechanics
oaire.citation.volume102
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
relation.isAuthorOfPublication9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isAuthorOfPublication.latestForDiscovery9b079aa3-b79b-4395-b081-1f23d6a17514

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