scholarly journals β-Ti Alloys for Orthopedic and Dental Applications: A Review of Progress on Improvement of Properties through Surface Modification

Coatings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1446
Author(s):  
Longfei Shao ◽  
Yiheng Du ◽  
Kun Dai ◽  
Hong Wu ◽  
Qingge Wang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Surface Modification ◽  
Elastic Modulus ◽  
Specific Strength ◽  
Comprehensive Properties ◽  
Ti Alloys ◽  
Beta Titanium ◽  
Low Elastic Modulus ◽  
Biological Performance ◽  
Dental Applications

Ti and Ti alloys have charming comprehensive properties (high specific strength, strong corrosion resistance, and excellent biocompatibility) that make them the ideal choice in orthopedic and dental applications, especially in the particular fabrication of orthopedic and dental implants. However, these alloys present some shortcomings, specifically elastic modulus, wear, corrosion, and biological performance. Beta-titanium (β-Ti) alloys have been studied as low elastic modulus and low toxic or non-toxic elements. The present work summarizes the improvements of the properties systematically (elastic modulus, hardness, wear resistance, corrosion resistance, antibacterial property, and bone regeneration) for β-Ti alloys via surface modification to address these shortcomings. Additionally, the shortcomings and prospects of the present research are put forward. β-Ti alloys have potential regarding implants in biomedical fields.

First-principles calculations for development of low elastic modulus Ti alloys

2004 ◽  
Vol 70 (17) ◽  
Author(s):  
Hideaki Ikehata ◽  
Naoyuki Nagasako ◽  
Tadahiko Furuta ◽  
Atsuo Fukumoto ◽  
Kazutoshi Miwa ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
First Principles ◽  
First Principles Calculations ◽  
Ti Alloys ◽  
Low Elastic Modulus

scholarly journals Microstructure and Mechanical Properties of Rapidly Solidified β-Type Ti–Fe–Sn–Mo Alloys with High Specific Strength and Low Elastic Modulus

Metals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1135 ◽  
Author(s):  
Li ◽  
Ma ◽  
Jia ◽  
Meng ◽  
Tang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Volume Fraction ◽  
High Yield ◽  
Specific Strength ◽  
High Specific Strength ◽  
Microstructure And Mechanical Properties ◽  
Low Elastic Modulus ◽  
Mo Content ◽  
Rapidly Solidified

The microstructure and mechanical properties of rapidly solidified β-type Ti–Fe–Sn–Mo alloys with high specific strength and low elastic modulus were investigated. The results show that the phases of Ti–Fe–Sn–Mo alloys are composed of the β-Ti, α-Ti, and TiFe phases; the volume fraction of TiFe phase decreases with the increase of Mo content. The high Fe content results in the deposition of TiFe phase along the grain boundary of the Ti phase. The Ti75Fe19Sn5Mo1 alloy exhibits the high yield strength, maximum compressive strength, large plastic deformation, high specific strength, high Vickers hardness, and large toughness value, which is a superior new engineering material. The elastic modulus (42.1 GPa) of Ti75Fe15Sn5Mo5 alloy is very close to the elastic modulus of human bone (10–30 GPa), which indicating that the alloy can be used as a good biomedical alloy. In addition, the large H/Er and H3/Er2 values of Ti75Fe19Sn5Mo1 alloy indicate the good wear resistance and long service life as biomedical materials.

Evaluation of Developed Texture during Cold-Rolling Deformation of Ti-Nb-Ta-Zr Biocompatible Alloy

2013 ◽  
Vol 592-593 ◽  
pp. 366-369
Author(s):  
Vasile Danut Cojocaru ◽  
Isabelle Thibon ◽  
Doina Raducanu ◽  
Ion Cinca ◽  
Thierry Gloriant ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Orientation Distribution ◽  
Distribution Functions ◽  
Mechanical Processing ◽  
Specific Strength ◽  
High Specific Strength ◽  
Ti Alloys ◽  
Pole Figures ◽  
Cold Rolled ◽  
Rolling Deformation

During the last decade the titanium alloys were extensively used in a variety of applications due to their good mechanical properties, high biocompatibility and corrosion resistance. β-type Ti alloys composed of Nb, Ta and Zr elements have received much attention, because they feature high specific strength, bio-corrosion resistance, no allergic problems and biocompatibility. A Ti-29Nb-9Ta-10Zr (wt.%) alloy was subjected to thermo-mechanical processing and testing. Two states were investigated: recrystallized and 80% cold-rolled. Data concerning phase structure and developed texture, expressed by Inverse Pole Figures (IPFs) and Orientation Distribution Functions (ODFs), was obtained and analyzed.

Osteoblast Behaviour on Nanostructured Ti-Bioceramic Composites

2011 ◽  
Vol 674 ◽  
pp. 153-158 ◽  
Author(s):  
Karolina Jurczyk ◽  
Katarzyna Niespodziana ◽  
M.U. Jurczyk ◽  
Mieczyslaw Jurczyk
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Biological Properties ◽  
Grain Structure ◽  
Good Adhesion ◽  
Ti Alloys ◽  
Mechanical Properties And Corrosion ◽  
45S5 Bioglass ◽  
Dental Applications

Ti and Ti-based alloys are preferred materials in the production of implants in both medical and dental applications. One of the methods that allow the change of biological properties of Ti alloys is the modification of their chemical composition and microstructure. In this study, new biocompatible, nanostructured Ti-x vol% SiO2, Ti-x vol% 45S5 Bioglass, and Ti-x vol% HAp (x=0, 3, 10) materials have been developed, manufactured and studied in terms of their biocompatibility. These materials give the possibility of controlling in detail the grain structure and the composition of the alloy and, consequently, the mechanical and biocompatibility performances. Our results of in vitro studies show that these bionanocomposites have excellent biocompatibility and could integrate with bone. After 1st day of incubation cells show good adhesion to the surface of studied samples in the form of filopodia. After 5 days of incubation, the typical monolayer was observed. With regard to microcrystalline Ti it could help to obtain better dental implants with better mechanical properties and corrosion resistance.

Diffusion of Oxygen in some Binary Ti-Based Alloys Used as Biomaterials

2015 ◽  
Vol 364 ◽  
pp. 165-173
Author(s):  
Carlos Roberto Grandini
Keyword(s):  
Crystalline Lattice ◽  
Specific Strength ◽  
High Specific Strength ◽  
Ti Alloys ◽  
Excellent Corrosion Resistance ◽  
Low Elastic Modulus ◽  
Exponential Factors ◽  
Good Biocompatibility ◽  
Effect Of Oxygen ◽  
Interstitial Elements

Ti and its alloys are widely used as biomaterials. Their main properties are excellent corrosion resistance, relatively low elastic modulus, high specific strength, and good biocompatibility. The development of new Ti alloys with properties favorable for use in the human body is desired. To this end, Ti alloys with Mo, Nb, Zr, and Ta are being developed, because these elements do not cause cytotoxicity. The presence of interstitial elements (such as oxygen and nitrogen) induces strong changes in the elastic properties of the material, which leads to hardening or softening of the alloy. By means of anelastic spectroscopy, we are able to obtain information on the diffusion of these interstitial elements present in the crystalline lattice. In this paper, the effect of oxygen on the anelastic properties of some binary Ti-based alloys was analyzed with anelastic spectroscopy. The diffusion coefficients, pre-exponential factors, and activation energies were calculated for oxygen and nitrogen in these alloys.

scholarly journals The Improved Biological Performance of a Novel Low Elastic Modulus Implant

PLoS ONE ◽  
2013 ◽  
Vol 8 (2) ◽  
pp. e55015 ◽  
Author(s):  
Lei Shi ◽  
Lei Shi ◽  
Ling Wang ◽  
Yonghong Duan ◽  
Wei Lei ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Low Elastic Modulus ◽  
Biological Performance

Preparation and Characterisation of New Titanium Based Alloys for Orthopaedic and Dental Applications

2006 ◽  
Vol 15-17 ◽  
pp. 71-76 ◽  
Author(s):  
A. Nouri ◽  
X.B. Chen ◽  
Peter D. Hodgson ◽  
Cui E Wen
Keyword(s):  
Elastic Modulus ◽  
Titanium Alloys ◽  
High Strength ◽  
Porous Titanium ◽  
Vacuum Furnace ◽  
Powder Metallurgy Method ◽  
Porous Metals ◽  
X Ray Diffraction ◽  
Low Elastic Modulus ◽  
Dental Applications

Various types of titanium alloys with high strength and low elastic modulus and, at the same time, vanadium and aluminium free have been developed as surgical biomaterials in recent years. Moreover, porous metals are promising hard tissue implants in orthopaedic and dentistry, where they mimic the porous structure and the low elastic modulus of natural bone. In the present study, new biocompatible Ti-based alloy foams with approximate relative densities of 0.4, in which Sn and Nb were added as alloying metals, were synthesised through powder metallurgy method. The new alloys were prepared by mechanical alloying and subsequently sintered at high temperature using a vacuum furnace. The characteristics and the processability of the ball milled powders and the new porous titanium-based alloys were characterised by X-ray diffraction, optical microscopy and scanning electron microscopy .The mechanical properties of the new titanium alloys were examined by Vickers microhardness measurements and compression testing.

Study of New Multifunctional Shape Memory and Low Elastic Modulus Ni-Free Ti Alloys

2008 ◽  
Vol 39 (4) ◽  
pp. 742-751 ◽  
Author(s):  
M. Arciniegas ◽  
J.M. Manero ◽  
J. Peña ◽  
F.J. Gil ◽  
J.A. Planell
Keyword(s):  
Elastic Modulus ◽  
Shape Memory ◽  
Ti Alloys ◽  
Low Elastic Modulus

Processing and Characterization of β-Ti Alloys by Means of Powder Metallurgy Processing and Blender Elemental

2012 ◽  
Vol 727-728 ◽  
pp. 61-66 ◽  
Author(s):  
F. Devesa ◽  
S. Rial ◽  
Vicente Amigó
Keyword(s):  
Corrosion Resistance ◽  
Powder Metallurgy ◽  
Mechanical Characterization ◽  
Processing Technique ◽  
High Corrosion Resistance ◽  
Β Phase ◽  
Ti Alloys ◽  
Low Elastic Modulus ◽  
Singular Characteristics

Titanium is an increasingly used material on industry. Based on Ti and titanium alloys characteristics, one of the most favorable processing methods is the powder metallurgy. Attending to microstructure, alloys showing β phase have singular characteristics of low elastic modulus, good specific properties and high corrosion resistance, which make β-Ti alloys very appropriated for specific uses covering a width list of fields including aeronautics or biomaterials. At this work, it has been obtained and characterized different β-Ti alloys. The processing technique has been optimized by means of an initial blender elemental followed by basic powder metallurgy. Microstructural and mechanical characterization of the studied alloys has been achieved. Results show that these kinds of alloys can be produced by this technique and the obtained properties are really interesting for a wide variety of applications.

scholarly journals Passive Layers and Corrosion Resistance of Biomedical Ti-6Al-4V and β-Ti Alloys

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 487
Author(s):  
Patrizia Bocchetta ◽  
Liang-Yu Chen ◽  
Juliana Dias Corpa Tardelli ◽  
Andréa Cândido dos Reis ◽  
Facundo Almeraya-Calderón ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Relevant Literature ◽  
Electrochemical Corrosion ◽  
Oxide Coating ◽  
Passive Layer ◽  
The Body ◽  
Specific Strength ◽  
Metallic Implants ◽  
Ti Alloys ◽  
The Ideal

The high specific strength, good corrosion resistance, and great biocompatibility make titanium and its alloys the ideal materials for biomedical metallic implants. Ti-6Al-4V alloy is the most employed in practical biomedical applications because of the excellent combination of strength, fracture toughness, and corrosion resistance. However, recent studies have demonstrated some limits in biocompatibility due to the presence of toxic Al and V. Consequently, scientific literature has reported novel biomedical β-Ti alloys containing biocompatible β-stabilizers (such as Mo, Ta, and Zr) studying the possibility to obtain similar performances to the Ti-6Al-4V alloys. The aim of this review is to highlight the corrosion resistance of the passive layers on biomedical Ti-6Al-4V and β-type Ti alloys in the human body environment by reviewing relevant literature research contributions. The discussion is focused on all those factors that influence the performance of the passive layer at the surface of the alloy subjected to electrochemical corrosion, among which the alloy composition, the method selected to grow the oxide coating, and the physicochemical conditions of the body fluid are the most significant.

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