Comparative study of the oxide scale thermally grown on titanium alloys by ion beam analysis techniques and scanning electron microscopy

A. Gutiérrez, F. Pászti, A. Climent-Font, J. A. Jiménez, M. F. López

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In the present work, the oxide layers developed at elevated temperature on three vanadium-free titanium alloys, of interest as implant biomaterials, were studied by Rutherford backscattering spectroscopy, elastic recoil detection analysis, and scanning electron microscopy. Tho chemical composition of the alloys investigated, in wt%, was Ti-7Nb-6Al, Ti-13Nb-13Zr, and Ti-15Zr-4Nb. Upon oxidation in air at 750 °C, an oxide scale forms, with a chemical composition, morphology, and thickness that depend on the alloy composition and the oxidation time. After equal exposure time, the Ti-7Nb-6Al alloy exhibited the thinnest oxide layer due to the formation of an Al2O3-rich layer. The oxide scale of the two TiNbZr alloys is mainly composed of Ti oxides, with small amounts of Nb and Zr dissolved. For both TiNbZr alloys, the role of the Nb-content on the mechanism of the oxide formation is discussed.

Original languageEnglish
Pages (from-to)2245-2253
Number of pages9
JournalJournal of Materials Research
Volume23
Issue number8
DOIs
Publication statusPublished - Aug 2008

Fingerprint

titanium alloys
Titanium alloys
Oxides
Ion beams
ion beams
Scanning electron microscopy
scanning electron microscopy
oxides
chemical composition
Chemical analysis
Oxidation
Vanadium
oxidation
Rutherford backscattering spectroscopy
Biocompatible Materials
Biomaterials
vanadium
backscattering
air
Air

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Comparative study of the oxide scale thermally grown on titanium alloys by ion beam analysis techniques and scanning electron microscopy. / Gutiérrez, A.; Pászti, F.; Climent-Font, A.; Jiménez, J. A.; López, M. F.

In: Journal of Materials Research, Vol. 23, No. 8, 08.2008, p. 2245-2253.

Research output: Contribution to journalArticle

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AB - In the present work, the oxide layers developed at elevated temperature on three vanadium-free titanium alloys, of interest as implant biomaterials, were studied by Rutherford backscattering spectroscopy, elastic recoil detection analysis, and scanning electron microscopy. Tho chemical composition of the alloys investigated, in wt%, was Ti-7Nb-6Al, Ti-13Nb-13Zr, and Ti-15Zr-4Nb. Upon oxidation in air at 750 °C, an oxide scale forms, with a chemical composition, morphology, and thickness that depend on the alloy composition and the oxidation time. After equal exposure time, the Ti-7Nb-6Al alloy exhibited the thinnest oxide layer due to the formation of an Al2O3-rich layer. The oxide scale of the two TiNbZr alloys is mainly composed of Ti oxides, with small amounts of Nb and Zr dissolved. For both TiNbZr alloys, the role of the Nb-content on the mechanism of the oxide formation is discussed.

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