Cipriano Farias, Francisco WerleyRebelo Duarte, Valdemarda Cruz Payão Filho, JoãoSchell, NorbertMaawad, EmadBordas-Czaplicki, MélanieFonseca , Fábio Machado Alves daCormier, JonathanGomes dos Santos, Telmo JorgeOliveira, João Pedro2024-04-262024-04-262024PURE: 81424836PURE UUID: 0bedbf70-7a8d-4f6f-87c2-e2de673da9b1Scopus: 85181212284WOS: 001134036000001ORCID: /0000-0001-6906-1870/work/158541982http://hdl.handle.net/10362/166667Authors acknowledge the Portuguese Fundação para a Ciência e a Tecnologia (FCT—MCTES) for its financial support via the project UID/EMS/00667/2019 (UNIDEMI). JPO acknowledges funding by national funds from FCT—Fundação para a Ciência e a Tecnologia, I.P., in the scope of the projects LA/P/0037/2020, Funding of CENIMAT/i3N by national funds through the FCT-Fundação para a Ciência e a Tecnologia, I.P., within the scope of Multiannual Financing of R&D Units, reference UIDB/50025/2020-2023 is also acknowledged. FWCF acknowledges Fundação para a Ciência e a Tecnologia (FCT-MCTES) for funding the Ph.D. Grant 2022.13870.BD. The authors acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Beamtime was allocated for proposal I-20210986 EC. The research leading to this result has been supported by the project CALIPSOplus under Grant Agreement 730872 from the EU Framework Programme for Research and Innovation HORIZON 2020. This activity has received funding from the European Institute of Innovation and Technology (EIT) Raw Materials through the project Smart WAAM: Microstructural Engineering and Integrated Non-Destructive Testing. Institut Pprime gratefully acknowledges ‘Contrat de Plan Etat—Région Nouvelle-Aquitaine (CPER)’ as well as the ‘Fonds Européen de Développement Régional (FEDER)’ for their financial support to part of the reported work. CRediT authorship contribution statement : Francisco Werley Cipriano Farias—Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Writing—original draft. Valdemar R. Duarte—Conceptualization, Formal analysis, Investigation, Methodology, Supervision, Writing—review and editing. João da Cruz Payão Filho—Software, Validation. Norbert Schell—Investigation, Resources. Emad Maawad—Investigation. M. Bordas-Czaplicki—Investigation, Methodology, Data Curation. F. Machado Alves da Fonseca—Investigation, Methodology, Data Curation. J. Cormier—Investigation, Methodology, Resources, Funding Acquisition, review and editing. T.G. Santos—Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Visualization, Writing—review and editing. J. P. Oliveira—Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Visualization, Writing—review and editing. Publisher Copyright: © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.This study evaluated the effect of dedicated heat treatments (1050°C, 1100°C, 1142°C, and 1185°C/2 h + double-aging) on the uniaxial tensile properties at elevated temperature (650°C) of Inconel® 718 fabricated via arc plasma directed energy deposition. They enabled to meet, for the first time, the AMS 5662 requirements at elevated temperature. Tensile tests exhibited ductile strain–stress curves. The 1100°C/2 h + double-aging showed the best performance (YS0.2%, UTS, and elongation of 967 MPa, 1126 MPa, and 18.7%, respectively). Additionally, vertical specimens evidenced dynamic strain aging, although no brittle-like features were observed.114249621engarc plasma directed energy depositioncrystallographic textureheat treatmentInconel 718tensile behavior at elevated temperatureGeneral Materials Sciencejournal article10.1080/21663831.2023.2297734https://www.scopus.com/pages/publications/85181212284