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In search of the optimal conditions to process shape memory alloys (NiTi) using fused filament fabrication (FFF)

2020-10-22Journal article Open access
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dc.contributor.authorCarreira, Pedro
dc.contributor.authorCerejo, Fábio
dc.contributor.authorAlves, Nuno
dc.contributor.authorVieira, Maria Teresa
dc.date.accessioned2023-04-19T15:36:37Z
dc.date.available2023-04-19T15:36:37Z
dc.date.issued2020-10-22
dc.descriptionThis research is sponsored by FEDER funds through COMPETE, Programa Operacional Factores de Competividade, Add.Powder (39910), and by national funds provided by FCT, Fundação para a Ciência e a Tecnologia, (project references UIDB/00285/2020 and UIDB/04044/2020) and Centro2020 through PAMI ROTEIRO/0328/2013 (no. 022158).pt_PT
dc.description.abstractThis research was performed so as to investigate the additive manufacturing of NiTi shape memory alloys, which is associated with direct processes, such as selective laser melting. In addition to its expensive production costs, NiTi readily undergoes chemical and phase modifications, mainly as a result of Ni loss during processing as a result of high temperatures. This research explores the potential usefulness of NiTi as well as its limitations using indirect additive processes, such as fused filament fabrication (FFF). The first step was to evaluate the NiTi critical powder volume content (CPVC) needed to process high-quality filaments (via extrusion). A typical 3D printer can build a selected part/system/device layer-by-layer from the filaments, followed by debinding and sintering (SDS), in order to generate a near-net-shape object. The mixing, extruding (filament), printing (shaping), debinding, and sintering steps were extensively studied in order to optimize their parameters. Moreover, for the sintering step, two main targets should be met, namely: the reduction of contamination during the process in order to avoid the formation of secondary phases, and the decrease in sintering temperature, which also contributes to reducing the production costs. This study aims to demonstrate the possibility of using FFF as an additive manufacturing technology for processing NiTi.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCarreira, P., Cerejo, F., Alves, N., & Vieira, M. T. (2020). In search of the optimal conditions to process shape memory alloys (NiTi) using fused filament fabrication (FFF). Materials, 13(21). https://doi.org/10.3390/ma13214718pt_PT
dc.identifier.doi10.3390/ma13214718pt_PT
dc.identifier.issn1996-1944
dc.identifier.urihttp://hdl.handle.net/10400.8/8423
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationCentre for Mechanical Enginnering, Materials and Processes
dc.relationCentre for Rapid and Sustainable Product Development
dc.relation.publisherversionhttps://www.mdpi.com/1996-1944/13/21/4718pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectNickel–titanium (NiTi)pt_PT
dc.subjectShape memory alloys (SMA)pt_PT
dc.subjectFused filament fabrication (FFF)pt_PT
dc.subjectAdditive manufacturing (AM)pt_PT
dc.subjectPowder filamentspt_PT
dc.subjectShapingpt_PT
dc.subjectDebinding and sintering (SDS)pt_PT
dc.titleIn search of the optimal conditions to process shape memory alloys (NiTi) using fused filament fabrication (FFF)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Mechanical Enginnering, Materials and Processes
oaire.awardTitleCentre for Rapid and Sustainable Product Development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04044%2F2020/PT
oaire.citation.issue21pt_PT
oaire.citation.titleMaterialspt_PT
oaire.citation.volume13pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameCarreira
person.familyNameAlves
person.givenNamePedro
person.givenNameNuno
person.identifier452149
person.identifier.ciencia-id0912-B574-FAB4
person.identifier.ciencia-id311E-1559-8F6C
person.identifier.orcid0000-0001-9416-8733
person.identifier.orcid0000-0002-5016-0868
person.identifier.ridN-4073-2013
person.identifier.scopus-author-id56652730600
person.identifier.scopus-author-id7006403383
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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