Effect of Combined Tempering and Aging in the Austenite Reversion, Precipitation, and Tensile Properties of an Additively Manufactured Maraging 300 Steel

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dc.contributor.authorConde, Fábio Faria
dc.contributor.authorEscobar, Julian David
dc.contributor.authorRodriguez, Johnnatan
dc.contributor.authorAfonso, Conrado Ramos Moreira
dc.contributor.authorOliveira, Marcelo Falcão
dc.contributor.authorAvila, Julian Arnaldo [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionEIA University
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCali
dc.date.accessioned2021-06-25T10:23:58Z
dc.date.available2021-06-25T10:23:58Z
dc.date.issued2021-01-01
dc.description.abstractMaraging 300 is an ultrahigh strength steel with significant alloy addition, resulting in a martensitic matrix hardened by precipitation through aging treatment. In these steels, intercritical tempering can provide reverted austenite and precipitation of intermetallic products, increasing the ductility of additively manufactured parts due to austenite presence. Studies deal with postprocessing of additive manufactured parts of maraging steel; however, few focused on phases evolution during the heat treatments and their mechanical response. In the present work, a maraging 300 steel processed by laser-based powder-bed fusion was studied with a focus on microstructural and mechanical properties after applying several postprocessing heat treatments. Tensile tests assessed the mechanical properties, and the microstructure was analyzed by scanning and transmission electron microscopy. A synchrotron beamline with x-ray diffraction was used to conduct in situ measurements of martensite and austenite evolution. The in situ phase evolution revealed that isothermal heat treatments were efficient in promoting martensite-to-austenite reversion. Likewise, the presence of austenite significantly enhanced the ductility, however, at some mechanical strength expense.en
dc.description.affiliationDepartment of Materials Engineering University of Sao Paulo (USP), Av. Joao Dagnone, 1100 Jd. Sta Angelina
dc.description.affiliationMetallurgical and Materials Engineering Department University of São Paulo, 10 Av.Prof. Mello Moraes 2463
dc.description.affiliationEIA University, Km 2 + 200 Vía al Aeropuerto José María Córdova
dc.description.affiliationFederal University of Sao Carlos (UFSCar) Graduate Program in Materials Science and Engineering (PPG-CEM)
dc.description.affiliationSão Paulo State University (UNESP), Campus of São João da Boa Vista, Av. Profª Isette Corrêa Fontão, 505, Jardim das Flores
dc.description.affiliationUniversidad Autónoma de Occidente (UAO) Cali, Calle 25, Vía Cali - Puerto Tejada #115-85 Km 2
dc.description.affiliationUnespSão Paulo State University (UNESP), Campus of São João da Boa Vista, Av. Profª Isette Corrêa Fontão, 505, Jardim das Flores
dc.identifierhttp://dx.doi.org/10.1007/s11665-021-05553-2
dc.identifier.citationJournal of Materials Engineering and Performance.
dc.identifier.doi10.1007/s11665-021-05553-2
dc.identifier.issn1544-1024
dc.identifier.issn1059-9495
dc.identifier.scopus2-s2.0-85101404255
dc.identifier.urihttp://hdl.handle.net/11449/205940
dc.language.isoeng
dc.relation.ispartofJournal of Materials Engineering and Performance
dc.sourceScopus
dc.subjectadditive manufacturing
dc.subjectaustenite reversion
dc.subjectlaser powder-bed fusion
dc.subjectmaraging 300
dc.subjectmechanical properties
dc.subjectx-ray measurements
dc.titleEffect of Combined Tempering and Aging in the Austenite Reversion, Precipitation, and Tensile Properties of an Additively Manufactured Maraging 300 Steelen
dc.typeArtigo
unesp.author.orcid0000-0002-5893-4725[6]

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