Effect of TiC content on the carbide particle growth of NbC-Ni cemented carbide

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dc.contributor.authorDA COSTA MORAIS L.
dc.contributor.authorBENEDUCE, F.
dc.contributor.authorRodrigo Magnabosco
dc.contributor.authorDA SILVA, A. L. N.
dc.contributor.authorOrcidhttps://orcid.org/0000-0003-0559-7224
dc.date.accessioned2022-05-01T06:02:43Z
dc.date.available2022-05-01T06:02:43Z
dc.date.issued2022-06-05
dc.description.abstract© 2022 Elsevier LtdThe current study reports the influence of TiC addition on carbide particle growth of NbC-Ni cemented carbides. Microstructural analysis after liquid phase sintering in vacuum at 1420 °C for 40 min showed a decrease in NbC grain size as TiC content increased, associate to a change in NbC carbide morphology from rounded to equiaxed. Chemical composition from EDS analysis revealed a mixed carbide (Nb,Ti)C formation, with a gradient of Ti in carbide region for samples with TiC above 15%. Dictra® simulations of spherical particles immersed in Ni matrix evidenced a retardation in carbide dissolution and a decrease in the volume dissolved as TiC is added. It was also noted that liquid phase composition for 140 min showed less Nb in liquid phase available for reprecipitation during cooling process, promoting carbide particle growth inhibition. Ti profiles from Dictra® and carbide composition from EDS suggest a thin Ti rich layer formation in carbide/binder interface, which can be related to the carbide particle growth inhibition mechanism. TiC addition promote an increase in hardness and toughness values, and the highest values for both properties was found for 7%TiC-NbC-12%Ni composition (mass percent).
dc.description.volume105
dc.identifier.citationDA COSTA, M. L.; BENEDUCE, F.; MAGNABOSCO, R.; DA SILVA, A. L. N. Effect of TiC content on the carbide particle growth of NbC-Ni cemented carbide. International Journal of Refractory Metals and Hard Materials, v. 105, June, 2022.
dc.identifier.doi10.1016/j.ijrmhm.2022.105826
dc.identifier.issn2213-3917
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4472
dc.relation.ispartofInternational Journal of Refractory Metals and Hard Materials
dc.rightsAcesso Restrito
dc.subject.otherlanguageCemented carbide
dc.subject.otherlanguageDICTRA® simulation
dc.subject.otherlanguageLiquid-phase sintering
dc.subject.otherlanguageNiobium carbide
dc.titleEffect of TiC content on the carbide particle growth of NbC-Ni cemented carbide
dc.typeArtigo
fei.scopus.citations2
fei.scopus.eid2-s2.0-85126831791
fei.scopus.subject'current
fei.scopus.subjectCarbide particles
fei.scopus.subjectCemented carbides
fei.scopus.subjectDICTRA simulation
fei.scopus.subjectGrainsize
fei.scopus.subjectGrowth inhibition
fei.scopus.subjectLiquid- phase sintering
fei.scopus.subjectMicrostructural analysis
fei.scopus.subjectParticle growth
fei.scopus.subjectSintering in vacuum
fei.scopus.updated2024-07-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85126831791&origin=inward
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