Effect of heat treatment and hot isostatic pressing on the structure and mechanical properties of Inconel 939 manufactured via casting and LPBF

dc.contributor.authorSedlák, Josefcs
dc.contributor.authorZouhar, Jancs
dc.contributor.authorPokorný, Zdeněkcs
dc.contributor.authorRobl, Jancs
dc.contributor.authorKolomý, Štěpáncs
dc.contributor.authorPagáč, Marekcs
dc.contributor.authorKouřil, Karelcs
dc.coverage.issue1cs
dc.coverage.volume145cs
dc.date.accessioned2025-05-26T08:56:05Z
dc.date.available2025-05-26T08:56:05Z
dc.date.issued2025-04-30cs
dc.description.abstractThe powder bed fusion method is one of the metal additive technologies, which can be used for the fabrication of difficult-to-process materials, such as cobalt and nickel superalloys. Inconel 939 is an example of a nickel superalloy widely used in constructions subjected to high temperatures such as industrial gas turbines. The current paper studies the effect of heat treatment and Hot Isostatic Pressing (HIP) on the structure and mechanical properties of additively manufactured (AM) Inconel 939. Mechanical properties i.e., tensile yield strength, ultimate tensile strength, and creep resistance were observed after the heat treatment (comprised of annealing and subsequent aging), HIP, and compared to the conventionally casted material. HIP post-process caused an increase of 5.73 % and 3.81 % in ultimate tensile strength at the room temperature as well as at the elevated temperature. A detailed analysis of the microstructure of AM and casting samples via light and electron microscopy was performed. The maximum grain sizes in AM samples were similar (122.9 m and 127.2 m in the axis and periphery, respectively), while the grain size in casting samples exhibited a mean equivalent circle diameter of 440 m in the axial region and 398 m in the vicinity of the peripheral region.en
dc.formattextcs
dc.format.extent556-570cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Manufacturing Processes. 2025, vol. 145, issue 1, p. 556-570.en
dc.identifier.doi10.1016/j.jmapro.2025.04.082cs
dc.identifier.issn1526-6125cs
dc.identifier.orcid0000-0002-9819-8259cs
dc.identifier.orcid0000-0001-8031-8366cs
dc.identifier.orcid0000-0003-3781-692Xcs
dc.identifier.orcid0000-0003-0603-8053cs
dc.identifier.other197922cs
dc.identifier.researcheridE-3732-2018cs
dc.identifier.researcheridC-4924-2015cs
dc.identifier.scopus37041666300cs
dc.identifier.scopus36939223500cs
dc.identifier.urihttps://hdl.handle.net/11012/251015
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofJournal of Manufacturing Processescs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S152661252500502Xcs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1526-6125/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectInconel 939en
dc.subjectPowder bed fusionen
dc.subjectHot isostatic pressingen
dc.subjectCreep resistanceen
dc.subjectMicrostructureen
dc.subjectMechanical propertiesen
dc.titleEffect of heat treatment and hot isostatic pressing on the structure and mechanical properties of Inconel 939 manufactured via casting and LPBFen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-197922en
sync.item.dbtypeVAVen
sync.item.insts2025.05.26 10:56:05en
sync.item.modts2025.05.26 10:32:58en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav strojírenské technologiecs
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