Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/106816 https://doi.org/10.3390/app9204412 |
Resumo: | Selective Laser Melting (SLM) is an additive manufacturing technology, ideal for the production of complex-shaped components. Design against fatigue is fundamental in the presence of cyclic loads, particularly for these materials which typically have significant porosity, high surface roughness and residual stresses. The main objective here is to study fatigue crack growth (FCG) in the 18Ni300 steel obtained by SLM. Typical da/dN-DK curves were obtained in C(T) specimens, indicating that cyclic plastic deformation may be the controlling mechanism. A complementary analysis, based on plastic CTOD range, showed a relatively low level of crack tip plastic deformation, and consequently a reduced level of plasticity induced crack closure. The curve da/dN versus plastic CTOD range is clearly above the curves for other materials. |
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Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Meltingfatigue crack growthSelective Laser Melting (SLM)Crack tip Opening Displacement (CTOD)crack tip plastic deformationDKSelective Laser Melting (SLM) is an additive manufacturing technology, ideal for the production of complex-shaped components. Design against fatigue is fundamental in the presence of cyclic loads, particularly for these materials which typically have significant porosity, high surface roughness and residual stresses. The main objective here is to study fatigue crack growth (FCG) in the 18Ni300 steel obtained by SLM. Typical da/dN-DK curves were obtained in C(T) specimens, indicating that cyclic plastic deformation may be the controlling mechanism. A complementary analysis, based on plastic CTOD range, showed a relatively low level of crack tip plastic deformation, and consequently a reduced level of plasticity induced crack closure. The curve da/dN versus plastic CTOD range is clearly above the curves for other materials.MDPI2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/106816http://hdl.handle.net/10316/106816https://doi.org/10.3390/app9204412eng2076-3417Antunes, FernandoSantos, LuísCapela, CarlosFerreira, José A. M.Costa, JoséJesus, Joel dePrates, Pedroinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-04-24T11:05:48Zoai:estudogeral.uc.pt:10316/106816Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:23:12.914480Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting |
title |
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting |
spellingShingle |
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting Antunes, Fernando fatigue crack growth Selective Laser Melting (SLM) Crack tip Opening Displacement (CTOD) crack tip plastic deformation DK |
title_short |
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting |
title_full |
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting |
title_fullStr |
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting |
title_full_unstemmed |
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting |
title_sort |
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting |
author |
Antunes, Fernando |
author_facet |
Antunes, Fernando Santos, Luís Capela, Carlos Ferreira, José A. M. Costa, José Jesus, Joel de Prates, Pedro |
author_role |
author |
author2 |
Santos, Luís Capela, Carlos Ferreira, José A. M. Costa, José Jesus, Joel de Prates, Pedro |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Antunes, Fernando Santos, Luís Capela, Carlos Ferreira, José A. M. Costa, José Jesus, Joel de Prates, Pedro |
dc.subject.por.fl_str_mv |
fatigue crack growth Selective Laser Melting (SLM) Crack tip Opening Displacement (CTOD) crack tip plastic deformation DK |
topic |
fatigue crack growth Selective Laser Melting (SLM) Crack tip Opening Displacement (CTOD) crack tip plastic deformation DK |
description |
Selective Laser Melting (SLM) is an additive manufacturing technology, ideal for the production of complex-shaped components. Design against fatigue is fundamental in the presence of cyclic loads, particularly for these materials which typically have significant porosity, high surface roughness and residual stresses. The main objective here is to study fatigue crack growth (FCG) in the 18Ni300 steel obtained by SLM. Typical da/dN-DK curves were obtained in C(T) specimens, indicating that cyclic plastic deformation may be the controlling mechanism. A complementary analysis, based on plastic CTOD range, showed a relatively low level of crack tip plastic deformation, and consequently a reduced level of plasticity induced crack closure. The curve da/dN versus plastic CTOD range is clearly above the curves for other materials. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
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://hdl.handle.net/10316/106816 http://hdl.handle.net/10316/106816 https://doi.org/10.3390/app9204412 |
url |
http://hdl.handle.net/10316/106816 https://doi.org/10.3390/app9204412 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2076-3417 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799134119570964480 |