Comparing spherical and irregularly shaped powders in laser powder bed fusion of Nb47Ti alloy

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dc.contributor.authorGUZMAN, JHOANpt_BR
dc.contributor.authorNOBRE, RAFAEL de M.pt_BR
dc.contributor.authorJUNIOR, RODRIGUES D.L.pt_BR
dc.contributor.authorMORAIS, WILLY A. dept_BR
dc.contributor.authorNUNUES, ENZO R.pt_BR
dc.contributor.authorBAYERLEIN, D.L.pt_BR
dc.contributor.authorFALCAO, R.B.pt_BR
dc.contributor.authorSALLICA-LEVA, EDWINpt_BR
dc.contributor.authorOLIVEIRA, HENRIQUE R.pt_BR
dc.contributor.authorCHASTINET, VICTOR L.pt_BR
dc.contributor.authorLANDGRAF, FERNANDO J.G.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2022-01-06T14:31:16Z
dc.date.available2022-01-06T14:31:16Z
dc.date.issued2021pt_BR
dc.description.abstractLiterature reports that irregularly shaped powder has lower flowability and apparent density than spherical shaped powder, factors that hinder its use in additive manufacturing, although its cost is potentially lower. In this study, four samples of Nb47Ti alloy manufactured by laser powder bed fusion from plasma atomized (PA) and hydride–dehydride (HDH) powders with different scanning strategies and interstitial element content were compared. Laser power levels of 200 W and 300 W were investigated. To keep a constant powder mass under the laser beam, the processing table displacement for samples from the HDH powder was twice larger than the 30 µm used for samples from the PA powder procedure, due to the lower apparent density of the HDH powder. It was possible to achieve porosity levels below 1% with both powders. However, the power of 200 W generated 13% of porosity in the HDH samples. A similar microstructure formed by melt pools and cellular dendritic structure in a β phase matrix of body-centered cubic (BCC) structure was obtained in all samples. Furthermore, the low interstitial element content of samples from PA powder resulted in lower microhardness when compared to the higher interstitial element content of samples from HDH powder.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDFAPESP: 16/50199-6pt_BR
dc.description.sponsorshipIDFAPESP: 17/20926-6; 17/20877-5pt_BR
dc.description.sponsorshipIDCNPq: 307631/2018-4pt_BR
dc.format.extent6557–6567pt_BR
dc.identifier.citationGUZMAN, JHOAN; NOBRE, RAFAEL de M.; JUNIOR, RODRIGUES D.L.; MORAIS, WILLY A. de; NUNUES, ENZO R.; BAYERLEIN, D.L.; FALCAO, R.B.; SALLICA-LEVA, EDWIN; OLIVEIRA, HENRIQUE R.; CHASTINET, VICTOR L.; LANDGRAF, FERNANDO J.G. Comparing spherical and irregularly shaped powders in laser powder bed fusion of Nb47Ti alloy. <b>Journal of Materials Engineering and Performance</b>, v. 30, n. 9, p. 6557–6567, 2021. SI. DOI: <a href="https://dx.doi.org/10.1007/s11665-021-05916-9">10.1007/s11665-021-05916-9</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32634.
dc.identifier.doi10.1007/s11665-021-05916-9pt_BR
dc.identifier.fasciculo9pt_BR
dc.identifier.issn1059-9495pt_BR
dc.identifier.percentilfi24.78pt_BR
dc.identifier.percentilfiCiteScore51.67pt_BR
dc.identifier.suplementoSIpt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32634
dc.identifier.vol30pt_BR
dc.relation.ispartofJournal of Materials Engineering and Performancept_BR
dc.rightsclosedAccesspt_BR
dc.subjectmicrostructure
dc.subjecthydrides
dc.subjectporosity
dc.subjectpowders
dc.subjectadditives
dc.subjectmanufacturing
dc.titleComparing spherical and irregularly shaped powders in laser powder bed fusion of Nb47Ti alloypt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorDANIEL LEAL BAYERLEIN
ipen.codigoautor14777
ipen.contributor.ipenauthorDANIEL LEAL BAYERLEIN
ipen.date.recebimento22-01
ipen.identifier.fi2.036pt_BR
ipen.identifier.fiCiteScore3.1pt_BR
ipen.identifier.ipendoc28402pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods9
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi0.00 - 24.99
ipen.type.genreArtigo
relation.isAuthorOfPublicationad0cdcf4-d93f-4964-a9b9-f7679ab72a3d
relation.isAuthorOfPublication.latestForDiscoveryad0cdcf4-d93f-4964-a9b9-f7679ab72a3d
sigepi.autor.atividadeBAYERLEIN, D.L.:14777:-1:Npt_BR
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