Microstructural characterization of Ni-Cr-Mo-Ti and Ti-6AI-4V alloys used in prosthetic abutments.
Purpose: Titanium alloys are commonly used for prosthetic abutments fabrication, but these alloys present high cost and difficult handling. Alternative Ni-Cr alloys with Mo and Ti combination have been proposed. This study compared the alloys Ti-6Al-4V and Ni-Cr-Ti-Mo by analyzing their surface prop...
| Publicado en: | Revista Odonto Ciencia Vol. 24; no. 4; pp. 401 - 406 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
EDIPUCRS - Editora Universitaria da PUCRS
2009
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105038617&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105038617 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01029460 78EH jtl: Revista Odonto Ciencia issn: 01029460 maglogo: N pubinfo: dt: 2009 vid: 24 iid: 4 pid: 34317 pub: EDIPUCRS - Editora Universitaria da PUCRS place: , <Blank> artinfo: ui: 105038617 105038617 2010696598 105038617 ppf: 401 ppct: 5 formats: tig: atl: Microstructural characterization of Ni-Cr-Mo-Ti and Ti-6AI-4V alloys used in prosthetic abutments. aug: au: Faot F da Siva WJ Garcia RCM Del Bel Cury AA affil: Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil sug: subj: Dental Materials Prosthodontics Equipment and Supplies Surface Properties Titanium Analytic Research Coefficient alpha Materials Testing Metallurgy Microscopy, Electron One-Way Analysis of Variance Sample Size ab: Purpose: Titanium alloys are commonly used for prosthetic abutments fabrication, but these alloys present high cost and difficult handling. Alternative Ni-Cr alloys with Mo and Ti combination have been proposed. This study compared the alloys Ti-6Al-4V and Ni-Cr-Ti-Mo by analyzing their surface properties such as hardness, morphology and microstructural characterization. Methods: Five discs (5 x 2 mm) of commercially Ti-6Al-4V and Ni-Cr-Ti-Mo alloys were used to evaluate Vickers hardness by hardness micro indentation test. The same specimens were analyzed by scanning electron microscopy (SEM) regarding surface morphology and subjected to a metallographic analysis of the microstructure by optical microscopy. Data on surface hardness were analyzed using one-way ANOVA followed by Tukey test ([alpha] = 0.05). Results: The Ni-Cr-Mo-Ti alloy showed significantly higher Vickers hardness (kg/mm2) values (452.2 ± 3.9) than the Ti-6Al-4V alloy (375.7 ± 15.2). The surface morphology evaluated by SEM revealed differences between the alloys. Metallographic analyses, for both alloys, showed a two-phase equilibrium microstructure, with the presence of e [alpha] + [beta] phase for Ti-6Al-4V; and gamma ([gamma]) primary phase and gamma-prime ([gamma]') as a second phase for Ni-Cr-Mo-Ti. Conclusion: It can be concluded that both alloys present the requirements to be used in prosthetic abutments. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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