As-built microstructure and mechanical behavior of Inconel 718 processed via directed energy deposition with laser beam

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorFederal University of Ceará (UFC)-
Autor(es): dc.contributorHelmholtz-Zentrum Hereon-
Autor(es): dc.contributorUniversidad Politécnica de Catalunya-
Autor(es): dc.contributorFundació Centre CIM-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCavalcante, Thiago Roberto Felisardo-
Autor(es): dc.creatorBon, Douglas Giovanni-
Autor(es): dc.creatorPascoal, Caio Victor Pereira-
Autor(es): dc.creatorMariani, Fábio Edson-
Autor(es): dc.creatorFaria, Guilherme-
Autor(es): dc.creatorCoelho, Reginaldo Teixeira-
Autor(es): dc.creatorMuñoz, Jairo Alberto-
Autor(es): dc.creatorMuñoz, Jessica Calvo-
Autor(es): dc.creatorCabrera, José Maria-
Autor(es): dc.creatorAvila, Julian Arnaldo-
Data de aceite: dc.date.accessioned2025-08-21T20:29:14Z-
Data de disponibilização: dc.date.available2025-08-21T20:29:14Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s40964-025-01054-z-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/305644-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/305644-
Descrição: dc.descriptionInconel 718 (IN718) is a Ni–Cr–Mo-based superalloy widely used in aerospace applications due to its excellent mechanical properties and corrosion resistance at high temperatures. Its high strength, however, presents challenges for conventional manufacturing of complex geometries due to its poor machinability. Additive manufacturing (AM), mainly directed energy deposition with laser beam (DED-LB), has emerged as a promising solution, offering precision, reduced material waste, and design flexibility. The microstructural evolution of IN718, primarily influenced by the precipitation of secondary phases such as γʹ, γʺ, Laves phases, and carbides, is critical for its performance. This study successfully developed a process window for DED-LB, producing high-density samples with minimal defects. Microstructural analysis revealed the role of grain size, second phases and Laves phases. At the same time, mechanical testing demonstrated a balance between strength and ductility, attributed to precipitation hardening and the predominance of screw-type dislocations. This work investigates the as-built condition of IN718 to evaluate the direct impact of process parameters on microstructure and mechanical properties without the influence of post-processing treatments. Key findings include the correlation of grain morphology and defects to the mechanical behavior of as-built samples. The results provide insights into the microstructural evolution and mechanical performance of DED-LB IN718 in the as-built condition.-
Descrição: dc.descriptionDepartment of Materials Engineering São Carlos School of Engineering (EESC) University of São Paulo (USP)-
Descrição: dc.descriptionDepartment of Metallurgical and Materials Engineering Federal University of Ceará (UFC), CE-
Descrição: dc.descriptionDepartment of Production Engineering São Carlos School of Engineering (EESC) University of São Paulo (USP)-
Descrição: dc.descriptionInstitute of Materials Physics Helmholtz-Zentrum Hereon-
Descrição: dc.descriptionDepartment of Materials Science and Engineering EEBE Universidad Politécnica de Catalunya, c/Eduard Maristany 10-14-
Descrição: dc.descriptionFundació Centre CIM, Llorens I Artigas 12-
Descrição: dc.descriptionDepartment of Aeronautic Engineering São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Aeronautic Engineering São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationProgress in Additive Manufacturing-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAdditive manufacturing-
Palavras-chave: dc.subjectAs-built-
Palavras-chave: dc.subjectDED-
Palavras-chave: dc.subjectIN718-
Palavras-chave: dc.subjectMechanical-
Palavras-chave: dc.subjectMicrostructure-
Palavras-chave: dc.subjectParameters-
Título: dc.titleAs-built microstructure and mechanical behavior of Inconel 718 processed via directed energy deposition with laser beam-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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