Microstructure, Mechanical Properties, and Electrochemical Behavior of Ti-Nb-Fe Alloys Applied as Biomaterials

Lopes, Éder Sócrates Najar; Salvador, Camilo A.F.; Andrade, Denis Renato; Cremasco, Alessandra; Campo, Kaio Niitsu; Caram, Rubens

doi:10.1007/s11661-016-3411-0

Cited by 39 publications

(23 citation statements)

References 31 publications

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“…Based on the molybdenum equivalent, Fe presents a stronger β-Ti phase stabilization effect [10]. As these low Fe contents more strongly affect β-Ti (bcc) phase stabilization [12], the solubility of Fe in β-Ti (both bcc structures) causes simple solution strengthening, while additions above 2 wt% Fe significantly increase strength [13]. However, the significant biocompatibility of the different alloys containing Fe has been reported in numerous studies and does not sacrifice the biochemical suitability of alloys [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and the Microstructure of β Ti-35Nb-10Ta-xFe Alloys Obtained by Powder Metallurgy for Biomedical Applications

Amigó

Vicente

Afonso

et al. 2019

Metals

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Titanium alloys with high refractory metals content are required to obtain advanced biomaterials with a low elastic modulus and good mechanical properties. This work studies the influence of Fe content on the microstructure and mechanical properties of powder metallurgy Ti35Nb10Ta(Fe) alloys, with Fe content additions of 1.5, 3.0 and 4.5 wt%. Samples are obtained by uniaxial compaction and sintering at 1250 °C and 1300 °C. Microstructural characterization is performed by scanning and transmission electron microscopy and mechanical characterization by bending, compression and a hardness test. The elastic modulus is measured by the ultrasounds technique. The results show a 10% increase in the maximum bending strength with an increase in the sintering temperature. The obtained microstructure is composed of β-Ti phase (bcc) and some regions where laths of the α-Ti (hcp) phase occur along the grain boundaries. Fe addition slightly improves the stability of the β-Ti phase and conversely decreases the maximum strength and final deformability due to increased porosity. The Ti35Nb10Ta alloy composition displays better properties, with an elastic modulus of 75 GPa, a bending strength of 853 MPa and compression strength of 1000 MPa.

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Section: Introductionmentioning

confidence: 99%

Mechanical Properties and the Microstructure of β Ti-35Nb-10Ta-xFe Alloys Obtained by Powder Metallurgy for Biomedical Applications

Amigó

Vicente

Afonso

et al. 2019

Metals

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“…Nnamchi et al performed potentiodynamic polarisation tests on a Ti‐Mo‐Nb‐Zr alloy. Similarly, Lopes et al used the open circuit potential and potentiodynamic polarisation curves to evaluate the corrosion resistance of Ti‐Nb‐Fe. Fojt et al studied the electrochemical behaviour of nanostructured Ti35Nb‐2Zr.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Ti35Zr28Nb in Hanks’ solution and 3.5 wt% NaCl solution

McElligott

Shi

et al. 2017

Materials & Corrosion

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This research assessed the corrosion behaviour of Ti35Zr28Nb compared to that of commercial purity Ti (CP Ti) Grade 2 under crevice‐corrosion conditions in: (i) Hanks’ solution at 37 °C and (ii) 3.5 wt% NaCl solution at 95 °C. Both Ti35Zr28Nb and CP Ti showed low corrosion rates. There was no evidence of crevice corrosion indicating that both CP Ti and the Ti alloy were not sensitive to crevice corrosion under the conditions studied.

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“…Only a Nb content over 30 wt% can lead to an almost complete equi-axed β phase [9], but at the risk of a higher cost. The influence of Fe content, on the Ti-Nb system has been studied regarding the structure and the corrosion resistance [10][11][12].…”

mentioning

confidence: 99%

Structure and Properties of Some Metallic Biomaterials from System Ti-Nb-Fe Used in Implantology

Predescu¹,

Ciucă²,

Predescu³

et al. 2018

Rev. Chim.

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Microstructure, Mechanical Properties, and Electrochemical Behavior of Ti-Nb-Fe Alloys Applied as Biomaterials

Cited by 39 publications

References 31 publications

Mechanical Properties and the Microstructure of β Ti-35Nb-10Ta-xFe Alloys Obtained by Powder Metallurgy for Biomedical Applications

Mechanical Properties and the Microstructure of β Ti-35Nb-10Ta-xFe Alloys Obtained by Powder Metallurgy for Biomedical Applications

Corrosion of Ti35Zr28Nb in Hanks’ solution and 3.5 wt% NaCl solution

Structure and Properties of Some Metallic Biomaterials from System Ti-Nb-Fe Used in Implantology

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