Influence of plasma and cold spray deposited Ti Layers on high-cycle fatigue properties of Ti6Al4V substrates

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dc.contributor.authorČížek, Jancs
dc.contributor.authorKovářík, Ondřejcs
dc.contributor.authorSiegl, Jancs
dc.contributor.authorKhor, Khiam Aikcs
dc.contributor.authorDlouhý, Ivocs
dc.coverage.issue02cs
dc.coverage.volume217cs
dc.date.issued2013-02-25cs
dc.description.abstractThis paper presents a summary of the research on the influence of plasma and cold spray deposition of bio-grade Ti powder on the high-cycle fatigue properties of Ti6Al4V substrates. Four sets of flat specimens (as-received, grit-blasted, plasma and cold sprayed) were prepared and subjected to cantilever–beam cyclic bend loading with a constant deflection of the free end. It was found that the grit-blasting procedure significantly increased the fatigue lives of the specimens compared to the as-received set (1.81x increase). The deposition of the coatings onto grit-blasted specimens led to deterioration of fatigue properties. The average fatigue lives of the plasma sprayed and cold sprayed samples reached 1.16x and 0.91x of the as-received specimens, respectively. In order to understand the positive effect of the grit-blasting procedure and the adverse effect of the coatings deposition on fatigue lives, chemical analyses, fractographic analysis, microstructural investigations as well as layers elastic moduli estimation were carried out. It was found that the cold spray deposition retained the composition of the powder feedstock while a complete transformation of Ti into nitrides and oxides was detected in the plasma deposited layers. Owing to the different coating build-up principles and their respective different porosity levels, the moduli of the coatings were found to vary (7.2 GPa for plasma sprayed and 36.7 GPa for cold sprayed layers). The fatigue crack initiation sites and propagation directions in the plasma and cold sprayed specimens were found to differ substantially. Based on the obtained results, two explanations of the fatigue loading results are suggested in the paper.en
dc.description.abstractThis paper presents a summary of the research on the influence of plasma and cold spray deposition of bio-grade Ti powder on the high-cycle fatigue properties of Ti6Al4V substrates. Four sets of flat specimens (as-received, grit-blasted, plasma and cold sprayed) were prepared and subjected to cantilever–beam cyclic bend loading with a constant deflection of the free end. It was found that the grit-blasting procedure significantly increased the fatigue lives of the specimens compared to the as-received set (1.81x increase). The deposition of the coatings onto grit-blasted specimens led to deterioration of fatigue properties. The average fatigue lives of the plasma sprayed and cold sprayed samples reached 1.16x and 0.91x of the as-received specimens, respectively. In order to understand the positive effect of the grit-blasting procedure and the adverse effect of the coatings deposition on fatigue lives, chemical analyses, fractographic analysis, microstructural investigations as well as layers elastic moduli estimation were carried out. It was found that the cold spray deposition retained the composition of the powder feedstock while a complete transformation of Ti into nitrides and oxides was detected in the plasma deposited layers. Owing to the different coating build-up principles and their respective different porosity levels, the moduli of the coatings were found to vary (7.2 GPa for plasma sprayed and 36.7 GPa for cold sprayed layers). The fatigue crack initiation sites and propagation directions in the plasma and cold sprayed specimens were found to differ substantially. Based on the obtained results, two explanations of the fatigue loading results are suggested in the paper.en
dc.formattextcs
dc.format.extent23-33cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationSURFACE & COATINGS TECHNOLOGY. 2013, vol. 217, issue 02, p. 23-33.en
dc.identifier.doi10.1016/j.surfcoat.2012.11.067cs
dc.identifier.issn0257-8972cs
dc.identifier.orcid0000-0001-5092-5640cs
dc.identifier.orcid0000-0002-8053-8489cs
dc.identifier.other96784cs
dc.identifier.researcheridB-9391-2012cs
dc.identifier.researcheridC-3534-2013cs
dc.identifier.scopus14057630000cs
dc.identifier.scopus7003369902cs
dc.identifier.urihttp://hdl.handle.net/11012/31002
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofSURFACE & COATINGS TECHNOLOGYcs
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0257897212012200cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0257-8972/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectCold sprayen
dc.subjectplasma sprayen
dc.subjecthigh-cycle fatigueen
dc.subjectTi6Al4Ven
dc.subjecttitanium coatingen
dc.subjectelastic modulus calculationen
dc.subjectCold spray
dc.subjectplasma spray
dc.subjecthigh-cycle fatigue
dc.subjectTi6Al4V
dc.subjecttitanium coating
dc.subjectelastic modulus calculation
dc.titleInfluence of plasma and cold spray deposited Ti Layers on high-cycle fatigue properties of Ti6Al4V substratesen
dc.title.alternativeInfluence of plasma and cold spray deposited Ti Layers on high-cycle fatigue properties of Ti6Al4V substratesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-96784en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 15:07:16en
sync.item.modts2025.10.14 09:42:02en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav materiálových věd a inženýrstvícs
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