Effects of high temperature plasma immersion ion implantation on wear resistance of Ti-Si-B sintered alloys

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorFernandes, Bruno Bacci
dc.creatorOliveira, Rogério Moraes
dc.creatorUeda, Mário
dc.creatorMariano, Samantha de Fátima Magalhães
dc.creatorRamos, Alfeu Saraiva
dc.creatorVieira, Maxson Souza
dc.creatorde Melo, Francisco Cristóvão Lourenço
dc.creatorde Oliveira, Guilherme
dc.date2014-05-27T11:30:09Z
dc.date2016-10-25T18:52:37Z
dc.date2014-05-27T11:30:09Z
dc.date2016-10-25T18:52:37Z
dc.date2013-08-15
dc.date.accessioned2017-04-06T02:34:32Z
dc.date.available2017-04-06T02:34:32Z
dc.identifierSurface and Coatings Technology, v. 228, p. 195-200.
dc.identifier0257-8972
dc.identifierhttp://hdl.handle.net/11449/76271
dc.identifierhttp://acervodigital.unesp.br/handle/11449/76271
dc.identifier10.1016/j.surfcoat.2013.04.029
dc.identifierWOS:000321797100023
dc.identifier2-s2.0-84879458295
dc.identifierhttp://dx.doi.org/10.1016/j.surfcoat.2013.04.029
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/896972
dc.descriptionAlthough titanium and its alloys own good mechanical properties and excellent corrosion resistance, these materials present poor tribological properties for specific applications that require wear resistance. In order to produce wear-resistant surfaces, this work is aimed at achieving improvement of wear characteristics in Ti-Si-B alloys by means of high temperature nitrogen plasma immersion ion implantation (PIII). These alloys were produced by powder metallurgy using high energy ball milling and hot pressing. Scanning electron microscopy (SEM) and X-ray diffraction identified the presence of α-titanium, Ti6Si2B, Ti5Si3, TiB and Ti3Si phases. Wear tests were carried out with a ball-on-disk tribometer to evaluate the friction coefficient and wear rate in treated and untreated samples. The worn profiles were measured by visible light microscopy and examined by SEM in order to determine the wear rates and wear mechanisms. Ti-7.5Si-22.5B alloy presented the highest wear resistance amongst the untreated alloys produced in this work. High temperature PIII was effective to reduce the wear rate and friction coefficient of all the Ti-Si-B sintered alloys. © 2013 Elsevier B.V.
dc.languageeng
dc.relationSurface and Coatings Technology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectPowder metallurgy
dc.subjectTitanium alloys
dc.subjectTribological properties
dc.subjectExcellent corrosion resistances
dc.subjectFriction coefficients
dc.subjectHigh temperature plasma immersion
dc.subjectHigh-energy ball milling
dc.subjectPlasma immersion ion implantation
dc.subjectVisible light microscopy
dc.subjectWear characteristics
dc.subjectAlloys
dc.subjectBall milling
dc.subjectCerium alloys
dc.subjectCorrosion resistance
dc.subjectFriction
dc.subjectHot pressing
dc.subjectIon implantation
dc.subjectPlasma applications
dc.subjectScanning electron microscopy
dc.subjectSilicon
dc.subjectSintering
dc.subjectTitanium
dc.subjectTitanium compounds
dc.subjectTribology
dc.subjectWear of materials
dc.subjectWear resistance
dc.subjectX ray diffraction
dc.titleEffects of high temperature plasma immersion ion implantation on wear resistance of Ti-Si-B sintered alloys
dc.typeOtro


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