Different Response of Cast and 3D-Printed Co-Cr-Mo Alloy to Heat Treatment: A Thorough Microstructure Characterization

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dc.contributor.authorRoudnická, Michaelacs
dc.contributor.authorBigas, Jiřícs
dc.contributor.authorMolnárová, Orsolyacs
dc.contributor.authorPaloušek, Davidcs
dc.contributor.authorVojtěch, Daliborcs
dc.coverage.issue5cs
dc.coverage.volume11cs
dc.date.accessioned2022-04-04T14:59:36Z
dc.date.available2022-04-04T14:59:36Z
dc.date.issued2021-04-22cs
dc.description.abstractThe Co-Cr-Mo alloy is a biomaterial with very good corrosion resistance and wear resistance; thus, it is widely applied for knee replacements. The wear resistance is influenced by the amount of hcp phase and morphology of carbidic precipitates, which can both be altered by heat treatment. This study compares a conventional knee replacement manufactured by investment casting with a material prepared by the progressive technology of 3D printing. The first set of results shows a different response of both materials in increasing hardness with annealing at increasing temperatures up to the transformation temperature. Based on these results, solution treatment and subsequent aging at conditions to reach the maximum hardness was applied. Microstructural changes were studied thoroughly by means of optical, scanning electron and transmission electron microscopy. While increased hardness in the conventional material is caused by the precipitation of fine hard carbides combined with an increase in the hcp phase by isothermal transformation, a massive fcc -> hcp transformation is the main cause for the hardness increase in the 3D-printed material.en
dc.formattextcs
dc.format.extent1-21cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMetals. 2021, vol. 11, issue 5, p. 1-21.en
dc.identifier.doi10.3390/met11050687cs
dc.identifier.issn2075-4701cs
dc.identifier.other177081cs
dc.identifier.urihttp://hdl.handle.net/11012/204082
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMetalscs
dc.relation.urihttps://www.mdpi.com/2075-4701/11/5/687cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2075-4701/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectCo-Cr-Mo alloyen
dc.subjectadditive manufacturingen
dc.subjectselective laser meltingen
dc.subjectheat treatmenten
dc.titleDifferent Response of Cast and 3D-Printed Co-Cr-Mo Alloy to Heat Treatment: A Thorough Microstructure Characterizationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-177081en
sync.item.dbtypeVAVen
sync.item.insts2022.04.04 16:59:36en
sync.item.modts2022.04.04 16:15:01en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. ÚK-odbor reverzního inženýrství a aditivních technologiícs
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ÚK-odbor reverzního inženýrství a aditivních technologií