Powder bed fusion of high-Mn-N Ni-free austenitic stainless steel: achieving low porosity and high mechanical strength through process parameter selection

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Autor(es): dc.contributorUniversidade Federal do ABC (UFABC)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorInnovation Institute of Advanced Manufacturing and Microfabrication (SENAI)-
Autor(es): dc.contributorUniversitat Politècnica de Catalunya (UPC)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorTochiro, Leandro Akira-
Autor(es): dc.creatorGabriel, André Henrique Guimarães-
Autor(es): dc.creatorTerada, Maysa-
Autor(es): dc.creatorde Castro, Renato Spacini-
Autor(es): dc.creatorLopes, Éder Sócrates Najar-
Autor(es): dc.creatorAvila, Julian Arnaldo-
Autor(es): dc.creatorMasoumi, Mohammad-
Data de aceite: dc.date.accessioned2025-08-21T23:31:55Z-
Data de disponibilização: dc.date.available2025-08-21T23:31:55Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00170-024-13073-1-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300351-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300351-
Descrição: dc.descriptionThe emergence of innovative high-performance stainless steels is essential at the forefront of material science. This research highlights the meticulous development of a novel high-Mn-N Ni-free austenitic stainless steel via the powder bed fusion laser–based (PBF-LB) technique. We strategically optimized the laser parameters, achieving ultralow porosity and a refined microstructure with defects under 2%. Comprehensive analysis revealed superior dendritic cellular formations at melt pool boundaries, underlining our method’s precision. Unveiling the strength of this novel steel, sample S11 (scanning speed of 800 mm/s and laser power of 147 W) showed a remarkable tensile strength of 1190 ± 20 MPa and an impressive elongation to fracture of 35 ± 3%. Interestingly, twin formations became evident under external loads, enhancing mechanical resistance while preserving ductility. Advanced quantification methods were employed to ensure accuracy, especially for low atomic number elements, overcoming previous measurement constraints. This pioneering study introduces a game-changing austenitic Ni-free stainless steel enriched by Mn and N. It sets a new benchmark in material development and application, synergizing exceptional mechanical attributes with robust ductility.-
Descrição: dc.descriptionUniversitat Politècnica de Catalunya-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCenter of Engineering Modeling and Applied Social Sciences Federal University of ABC UFABC, Santo Andre-
Descrição: dc.descriptionSchool of Mechanical Engineering University of Campinas (UNICAMP), SP-
Descrição: dc.descriptionInnovation Institute of Advanced Manufacturing and Microfabrication (SENAI), Av. Bento Branco de Andrade Filho, 379-
Descrição: dc.descriptionResearch Group in Structures and Mechanics of Materials (REMM) Department of Strength of Materials and Structural Engineering Universitat Politècnica de Catalunya (UPC), Diagonal 647-
Descrição: dc.descriptionSchool of Engineering São Paulo State University (UNESP), Av. Profa. Isette Correa Fontão, 505, São João da Boa Vista-
Descrição: dc.descriptionSchool of Engineering São Paulo State University (UNESP), Av. Profa. Isette Correa Fontão, 505, São João da Boa Vista-
Descrição: dc.descriptionFAPESP: 2020/09079-2-
Descrição: dc.descriptionFAPESP: 2021/02926-4-
Descrição: dc.descriptionCNPq: 304157/2020-1-
Descrição: dc.descriptionCNPq: 306960/2021-4-
Formato: dc.format1377-1396-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Advanced Manufacturing Technology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAdditive manufacturing-
Palavras-chave: dc.subjectDendritic cellular structure-
Palavras-chave: dc.subjectEBSD-
Palavras-chave: dc.subjectHigh-Mn-N Ni-free austenitic stainless steel-
Palavras-chave: dc.subjectPorosity-
Palavras-chave: dc.subjectPowder bed fusion-
Palavras-chave: dc.subjectVolumetric energy density-
Título: dc.titlePowder bed fusion of high-Mn-N Ni-free austenitic stainless steel: achieving low porosity and high mechanical strength through process parameter selection-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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