Effects of milling time on microstructure and mechanical properties of composite WC-(Fe3Al-B) consolidated by spark plasma sintering

Página do item simplificado
dc.contributor.authorYBARRA, L. A. C.
dc.contributor.authorCHIMANSKI, A.
dc.contributor.authorPEREIRA, G. J.
dc.contributor.authorMACHADO I. F.
dc.contributor.authorYOSHIMURA, H. N.
dc.date.accessioned2022-01-12T21:58:24Z
dc.date.available2022-01-12T21:58:24Z
dc.date.issued2017-11-08
dc.description.abstract© 2017 Trans Tech Publications, Switzerland.Cobalt is widely used to produce WC-Co hard metals, but this binder has problems of shortage and unstable price. In this work, cobalt was replaced by an iron aluminide intermetallic binder. WC-10%(Fe3Al-3%B) composite was prepared by vibration milling of WC, Fe, Fe-B, and Al powders and sintered by spark plasma sintering (SPS) at 1150 °C for 8 min under 30 MPa. The milling time was 0.17, 12, 25 and 50 h. The SPS was efficient to consolidate the composite resulting in relative density of ~98% or higher. With increasing milling time, Vickers hardness (HV30) of composite increased from 12 to 14 GPa due to the enhanced homogeneity of microstructure, while the fracture toughness, KIc, determined by an indention fracture method using Shetty equation, remained constant at around 9.1 MPa.m1/2.
dc.description.firstpage487
dc.description.lastpage492
dc.description.volume899 MSF
dc.identifier.citationYBARRA, L. A. C.; CHIMANSKI, A.; PEREIRA, G. J.; MACHADO I. F.; YOSHIMURA, H. N. Effects of milling time on microstructure and mechanical properties of composite WC-(Fe3Al-B) consolidated by spark plasma sintering. Materials Science Forum, v. 899 MSF, p. 487-492, 2017.
dc.identifier.doi10.4028/www.scientific.net/MSF.899.487
dc.identifier.issn1662-9752
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/3859
dc.relation.ispartofMaterials Science Forum
dc.rightsAcesso Restrito
dc.subject.otherlanguageComposite
dc.subject.otherlanguageFe3Al
dc.subject.otherlanguageIntermetallic
dc.subject.otherlanguagePowder technology
dc.subject.otherlanguageSpark plasma sintering
dc.subject.otherlanguageWC
dc.titleEffects of milling time on microstructure and mechanical properties of composite WC-(Fe3Al-B) consolidated by spark plasma sintering
dc.typeArtigo de evento
fei.scopus.citations0
fei.scopus.eid2-s2.0-85027348651
fei.scopus.subjectAl powder
fei.scopus.subjectFe3Al
fei.scopus.subjectIron aluminides
fei.scopus.subjectMicrostructure and mechanical properties
fei.scopus.subjectMilling time
fei.scopus.subjectRelative density
fei.scopus.subjectVibration millings
fei.scopus.subjectWC-Co hardmetals
fei.scopus.updated2023-02-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85027348651&origin=inward
Arquivos
Coleções
Artigos