Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

2020 ◽  
Vol 22 (11) ◽  
pp. 2000555
Author(s):  
Shunxing Liang
Keyword(s):  
Elastic Modulus ◽  
Titanium Alloys ◽  
Implant Materials ◽  
Low Elastic Modulus

Analysis on the Martensitic Transformation in the Ti-xNb Alloys Using a Phenomenological Theory

2007 ◽  
Vol 124-126 ◽  
pp. 1669-1672 ◽  
Author(s):  
Hi Won Jeong ◽  
Seung Eon Kim ◽  
Chang Yong Jo ◽  
Yong Tae Lee ◽  
Joong Kuen Park
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Martensitic Transformation ◽  
Shape Memory ◽  
Titanium Alloys ◽  
Martensitic Transformations ◽  
Phenomenological Theory ◽  
Transition Elements ◽  
Low Elastic Modulus ◽  
Diffraction Peaks

The titanium alloys containing the Nb transition elements have been investigated as the Ni-free shape memory and the biomedical alloys with a low elastic modulus. The mechanical properties of the alloys depended upon the meta-stable phases like the α`, α``, ω. To study the martensitic transformations from the β to α`` or α` the Ti-xNb (x=0 to 40 wt%) alloys were melted into the button type ingots using a VAR, and followed by the water-quenching after the soaking at 1000oC for 2hrs. The crystallography of the martensitic phases in the water-quenched alloys was analyzed using a XRD. The diffraction peaks of the orthorhombic martensites were identified by the crystallographic relationship with the bcc matrix. The lattice parameters of the orthorhombic martensites were varied continuously with the contents of the Nb elements. The martensitic transformations of the alloys were studied using the phenomenological theory of Bowles and Mackenzie.

Effect of β-Stabilizing Transition Elements on Elastic Modulus of Ti-M Systems

2004 ◽  
Vol 449-452 ◽  
pp. 865-868 ◽  
Author(s):  
Hi Won Jeong ◽  
Y.S. Kim ◽  
Seung Eon Kim ◽  
Yong Taek Hyun ◽  
Yont Tai Lee ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Titanium Alloys ◽  
Stress Shielding ◽  
Shielding Effect ◽  
Transition Elements ◽  
Generalized Gradient ◽  
First Principle Calculation ◽  
Treatment Conditions ◽  
Low Elastic Modulus ◽  
Artificial Prosthesis

New titanium alloys with a low elastic modulus have been developed for biomedical applications to avoid the stress shielding effect of the artificial prosthesis. The newly developed alloys contained the transition elements like Nb, Ta, Zr which were non-cytotoxicity elements. These elements produced β, ω, and α'' phases with heat treatment conditions in titanium alloys and determined the elastic modulus of the alloys. However, the clear mechanism of the low elastic modulus alloys has not been known. In the present paper, the total energy and elastic modulus of β and α'' phases were calculated using a first principle calculation employing the generalized gradient approximation (GGA). The mechanism of the low elastic modulus was discussed with calculated values.

Design of low elastic modulus Ti–Nb–Zr alloys for implant materials

2012 ◽  
Vol 27 (1) ◽  
pp. 55-57 ◽  
Author(s):  
X P Song ◽  
L You ◽  
B Zhang ◽  
A Song
Keyword(s):  
Elastic Modulus ◽  
Implant Materials ◽  
Low Elastic Modulus ◽  
Zr Alloys

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.

{332}<113> Twinning Deformation in a Cold-Rolled Biocompatible Ti-Nb-Zr-Fe Alloy

2016 ◽  
Vol 258 ◽  
pp. 350-353
Author(s):  
Vasile Danut Cojocaru ◽  
Ion Cinca ◽  
Nicolae Serban ◽  
Doina Margareta Gordin ◽  
Mariana Lucia Angelescu ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Cold Rolling ◽  
Physical Properties ◽  
Titanium Alloys ◽  
Pole Figures ◽  
Low Elastic Modulus ◽  
Mechanical And Physical Properties ◽  
Deformation Features ◽  
Schmid Factor ◽  
Cold Rolled

In the present days titanium and titanium alloys are extensively studied and used as biomaterials due to their biological, mechanical and physical properties. During last year’s special attention was paid to β-Titanium alloys due to their low elastic modulus. The present study investigates the twinning deformation features occurred during multi-pass cold-rolling processing of a biocompatible Ti-Nb-Zr-Fe alloy. Twinning deformation features were investigated using EBDS analysis by means of Inverse Pole Figures (IPF’s), Pole Figures (IP’s) and computed Schmid factor (SF’s) for the possible {332}<113> twinning variants.

The Surface Modifications of Dental Implants that are made of a Near-β Type Titanium Alloy

2009 ◽  
Vol 618-619 ◽  
pp. 299-302 ◽  
Author(s):  
Jian Ye Han ◽  
Zhen Tao Yu ◽  
Sen Yu ◽  
Xi Qun Ma ◽  
Jin Long Niu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloys ◽  
Dental Implants ◽  
Dental Implant ◽  
Erosion Resistance ◽  
Composite Coatings ◽  
Sol Gel ◽  
Implant Materials ◽  
Low Elastic Modulus ◽  
Micro Arc Oxidation

Abstract Titanium and its alloys are widely used as dental implant materials due to their excellent biocompatibility, mechanical properties and erosion resistance. The b type titanium alloys are becoming more promising dental implant materials for their low elastic modulus and suitable mechanical properties. Because the titanium alloys are bioinert. The dental implant’s surfaces that contact with bone tissues need modification. To bioactivate the implants, hydroxyapatite/TiO2 composite material was coated onto dental implants by sol-gel and micro arc oxidation (MAO) methods. The HA (Hydroxyapatite) was employed to enhance the bioactivity of the Ti substrate. Owning to TiO2, the HA/TiO2 composite coatings adhered tightly to the dental implants and no longer existed cracks.

scholarly journals Cytocompatibility of Ti–xZr alloys as dental implant materials

2021 ◽  
Vol 32 (5) ◽  
Author(s):  
Pinghua Ou ◽  
Cong Hao ◽  
Jue Liu ◽  
Rengui He ◽  
Baoqi Wang ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Pure Titanium ◽  
Dead Cell ◽  
Commercially Pure Titanium ◽  
Modulus Ratio ◽  
High Mechanical Strength ◽  
Commercially Pure ◽  
Low Elastic Modulus ◽  
Cell Assays ◽  
Osteogenic Induction

AbstractTi–xZr (x = 5, 15, 25, 35, 45% wt%) alloys with low elastic modulus and high mechanical strength were fabricated as a novel implant material. The biocompatibility of the Ti–xZr alloys was evaluated by osteoblast-like cell line (MG63) in terms of cytotoxicity, proliferation, adhesion, and osteogenic induction using CCK-8 and live/dead cell assays, electron microscopy, and real-time PCR. The Ti–xZr alloys were non-toxic and showed superior biomechanics compared to commercially pure titanium (cpTi). Ti–45Zr had the optimum strength/elastic modulus ratio and osteogenic activity, thus is a promising to used as dental implants.

A novel biomedical titanium alloy with high antibacterial property and low elastic modulus

2021 ◽  
Vol 81 ◽  
pp. 13-25
Author(s):  
Diangeng Cai ◽  
Xiaotong Zhao ◽  
Lei Yang ◽  
Renxian Wang ◽  
Gaowu Qin ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Elastic Modulus ◽  
Antibacterial Property ◽  
Low Elastic Modulus ◽  
Biomedical Titanium Alloy
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