Corrosion wear fracture of new β type biomedical titanium alloys

Niinomi, Mitsuo; Kuroda, Daisuke; Fukunaga, Kei Ichi; Morinaga, Masahiko; Kato, Yukitaka; Yashiro, Toshiaki; Suzuki, Akihiro

doi:10.1016/s0921-5093(98)01167-8

Cited by 171 publications

(89 citation statements)

References 3 publications

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“…According to the concentration of the alloying elements and the phases present at room temperature, titanium alloys are classified as α, α + β and β alloys. Commercially pure titanium (α alloy) and the Ti6Al4V alloy (α + β alloy) were found to be the most employed alloys for dental implants during years, although they exhibit prolonged use limitations: high elastic modulus compared to the bone, and low wear resistance [4],6]. Ti6Al4V was also found to be toxic due to the release of aluminium and vanadium ions [6].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Dalmau

Pina

Devesa

et al. 2015

Materials Science and Engineering: C

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The electrochemical behaviour of three different near-β titanium alloys (composed by Ti, Nb and Sn) obtained by powder metallurgy for biomedical applications has been investigated. Different electrochemical and microscopy techniques were used to study the influence of the chemical composition (Sn content) and the applied potential on the microstructure and the corrosion mechanisms of those titanium alloys. Addition of Sn below 4% wt. to the titanium powder improves the microstructural homogeneity and generates an alloy with high corrosion resistance with low elastic modulus, being more suitable as a biomaterial. When the Sn content is above 4%, the corrosion resistance considerably decreases by increasing the passive dissolution rate; this effect is enhanced with the applied potential.

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Section: Introductionmentioning

confidence: 99%

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Dalmau

Pina

Devesa

et al. 2015

Materials Science and Engineering: C

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“…The research to date on titanium-based alloys used as biomaterial concentrated on those of the β-type because the processing variables can be controlled to produce alloys with better properties such as smaller elasticity modulus and high corrosion resistance. In addition, osseo tissue responds better to β-type alloys than to (α + β)−type alloys 5,6 . Alloys of the binary Ti-Mo system were studied by several researchers.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of Ti-15Mo alloy used as biomaterial

et al. 2011

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With the increase in life expectancy, biomaterials have become an increasingly important focus of research because they are used to replace parts and functions of the human body, thus contributing to improved quality of life. In the development of new biomaterials, the Ti-15Mo alloy is particularly significant. In this study, the Ti-15Mo alloy was produced using an arc-melting furnace and then characterized by density, X-ray diffraction, optical microscopy, hardness and dynamic elasticity modulus measurements, and cytotoxicity tests. The microstructure was obtained with β predominance. Microhardness, elasticity modulus, and cytotoxicity testing results showed that this material has great potential for use as biomaterial, mainly in orthopedic applications.

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“…[1][2][3][4][5] As-solutionized TNTZ has a low Young's modulus of around 60 GPa, very low cytotoxicity similar to that of CP titanium, and good biocompatibility with living tissues. 6) However, its biocompatibility is inadequate and it lacks bioactivity-the ability to form a chemical bonding directly with bones.…”

Section: Introductionmentioning

confidence: 99%

Bioactive Ceramic Surface Modification of β-Type Ti-Nb-Ta-Zr System Alloy by Alkali Solution Treatment

et al. 2007

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Biomedical -type titanium alloys have been developed or are under development all over the world. In particular, researchers in Japan have been developed Ti-29Nb-13Ta-4.6Zr alloy (TNTZ)--type titanium alloy-for biomedical applications. Bioactive ceramic surface modification is effective for further improvement in the biocompatibility of TNTZ. Calcium phosphate ceramics such as hydroxyapatite (Ca 10 (PO 4 ) 6 OH 2 ; HAP), -calcium pyrophosphate (-Ca 2 P 2 O 7 ; CPP), and -tricalcium phosphate (-Ca 3 (PO 4 ) 2 ; -TCP) exhibit bioactivity. In this study, the formability and morphology of HAP on the surface of TNTZ, covered with sodium titanate film by alkali solution treatment were investigated before and after immersion in a simulated body fluid (SBF).A reticulate structure with a considerable number of large cracks and mainly composed of sodium titanate and niobate films having a thickness of 400 nm to 800 nm is formed on the specimen surface of TNTZ after immersing in 3, 5, and 10 kmolÁm À3 NaOH solutions for 86.4 and 172.8 ks. As the concentration of the alkali solution and the immersion time are increased, the formability of HAP improves because of the presence of a large amount of oxygen and the sodium in sodium titanate and niobate film. HAP is completely formed on the entire specimen surface of TNTZ immersed in the SBF for 1209.6 ks after immersing in 5 and 10 kmolÁm À3 NaOH solutions for 172.8 ks. Alkali treatment at 333 K in 5 kmolÁm À3 NaOH solutions for 172.8 ks is proposed to be an excellent condition to rapidly form HAP and fully cover the specimen surface of TNTZ with it. The bonding strength between TNTZ (alkali treatment at 333 K in 5 kmolÁm À3 NaOH solutions for 172.8 ks) and HAP is around 2 MPa, which was half or less than half the value required for biomedical applications. The inclusion of a baking treatment after the alkali treatment in order to improve the bonding strength degraded the HAP formability. Furthermore, the formability decreases with an increase in the baking temperature.

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Corrosion wear fracture of new β type biomedical titanium alloys

Cited by 171 publications

References 3 publications

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Preparation and characterization of Ti-15Mo alloy used as biomaterial

Bioactive Ceramic Surface Modification of β-Type Ti-Nb-Ta-Zr System Alloy by Alkali Solution Treatment

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Corrosion wear fracture of new β type biomedical titanium alloys

Cited by 171 publications

References 3 publications

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Preparation and characterization of Ti-15Mo alloy used as biomaterial

Bioactive Ceramic Surface Modification of &beta;-Type Ti-Nb-Ta-Zr System Alloy by Alkali Solution Treatment

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Bioactive Ceramic Surface Modification of β-Type Ti-Nb-Ta-Zr System Alloy by Alkali Solution Treatment