Direct comparison between Co-28Cr-6Mo alloy prepared by Selective Laser Melting and traditional investment casting

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dc.contributor.authorRoudnická, Michaelacs
dc.contributor.authorBigas, Jiřícs
dc.contributor.authorŠreibr, Vítcs
dc.contributor.authorPaloušek, Davidcs
dc.contributor.authorDalibor, Vojtěchcs
dc.coverage.issue1cs
dc.coverage.volume1178cs
dc.date.issued2021-09-22cs
dc.description.abstractThanks to high mechanical properties stable at elevated temperatures, high abrasion resistance, suitable corrosion resistance and biocompatibility, ternary cobalt alloy Co-28Cr-6Mo is a widely used material in the field of aviation industry and medical implants production. Due to the difficult formability and machinability of this alloy in combination with complex shapes of produced parts, investment casting is the mostly employed production process. However, additive manufacturing provides new processing opportunities. E.g. Selective Laser Melting (SLM) technology fusing metallic powders by precisely focused and controlled laser beam enables the production of highly complex parts with high precision. In this contribution, we bring a direct comparison between the microstructures and mechanical properties of Co-28Cr-6Mo alloy prepared by SLM and investment casting. Due to significant differences in microstructure fineness and phase composition, SLM is revealed to increase not only material strength and hardness but concurrently plasticity. As a result of rapid solidification during SLM, very fine cellular microstructure with Mo microsegregation at cell walls is formed without the occurrence of any secondary phases. The distinctive microstructure of the additively manufactured alloy can be expected to be the cause of many other variances in the material behaviour.en
dc.formattextcs
dc.format.extent1-6cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationIOP Conference Series: Materials Science and Engineering. 2021, vol. 1178, issue 1, p. 1-6.en
dc.identifier.doi10.1088/1757-899X/1178/1/012046cs
dc.identifier.issn1757-8981cs
dc.identifier.orcid0000-0001-5161-0480cs
dc.identifier.orcid0000-0003-4668-8763cs
dc.identifier.other175127cs
dc.identifier.researcheridU-4637-2019cs
dc.identifier.researcheridE-9044-2012cs
dc.identifier.scopus37089205700cs
dc.identifier.urihttp://hdl.handle.net/11012/203346
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofIOP Conference Series: Materials Science and Engineeringcs
dc.relation.urihttps://iopscience.iop.org/article/10.1088/1757-899X/1178/1/012046cs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1757-8981/cs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectCo-28Cr-6Moen
dc.subjectAdditive manufacturingen
dc.subjectLaser powder bed fusionen
dc.subjectElevated temperature operationen
dc.titleDirect comparison between Co-28Cr-6Mo alloy prepared by Selective Laser Melting and traditional investment castingen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-175127en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:48:40en
sync.item.modts2025.01.17 19:36:41en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav konstruovánícs
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