New Titanium Alloys Potentially Used for Metal-Ceramic Applications in Medicine

Abstract:

Titanium alloys corresponding to Ti-Nb-Zr-Ta system represent a new generation of biomaterials, which were developed for medical applications like metal-ceramic. They are composed of non-toxic and non-allergenic elements and have lower values of modulus of elasticity compared to that of the current biomaterials used in dentistry or orthopedics. In this paper are presented two new titanium alloys (Ti-21Nb-6Zr-15Ta and Ti-25Nb-10Zr-8Ta), which were characterized from structural aspect, mechanical and surface properties point of view using scanning electron microscopy, X-ray diffraction, wear properties, Vickers microhardness measurement. Also, was tested the cytotoxicity of these alloys using direct contact method. The results showed that the investigated alloys have a biphasic structure composed of β-solid solution with intragranular lamellar structures specific to α^”. The experimental results shown that new titanium alloys from the system Ti-Nb-Zr-Ta present much better properties compared to that of the metallic biomaterials used currently.

• Periodical: Key Engineering Materials (Volume 587)
• Pages: 287-292
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.587.287
• Online since: November 2013
• Authors: Andreea Carmen Bărbînţă, Dorin Luca, Sorin Iacob Strugaru, Carmen Biniuc, Alexandru Barca, Eduard Bârcă, Iulian Antoniac, Corneliu Munteanu
• Keywords: Cytotoxicity, SEM, Surface, Titanium Alloy, Wear

References

[1] M. Niinomi, Mechanical biocompatibilities of titanium alloys for biomedical applications, J Mech Behav Biom Mat. I (2008) 30-42.

[2] A.C. Bărbînţă, R. Chelariu, C.I. Crimu, B. Istrate, S. Nazarie, K. Earar, C. Munteanu, Investigation of a new Ti-Nb-Zr-Ta alloy by electron microscopy, X-ray diffraction and nanoindentation, Bulletin of the Transilvania University of Braşov, Series I. 6 (55) (2013).

DOI: 10.4028/www.scientific.net/amr.837.259

[3] A.C. Bărbînţă, R. Chelariu, C.I. Crimu, B. Istrate, S. Nazarie, K. Earar, C. Munteanu, Metallographic characterization of a new biomedical titanium-based alloy for orthopedic applications. Bulletin of the Transilvania University of Braşov, Series I. 6 (55) (2013).

[4] I. Cvijović-Alagić, Z. Cvijović, S. Mitrović, M. Rakin, D. Veljović, M. Babić, Tribological Behaviour of Orthopaedic Ti-13Nb-13Zr and Ti-6Al-4V Alloys, Tribol Lett. 40 (2010) 59-70.

DOI: 10.1007/s11249-010-9639-8

[5] M. Geetha, A.K. Singh, R. Asokamani, A.K. Gogia, Titanium Based Biomaterials, the Ultimate Choice for Orthopaedic Implants. A Review, Progress in Materials Science. 54 (2009) 397-425.

DOI: 10.1016/j.pmatsci.2008.06.004

[6] S.J. Li, R. Yang, S. Li, Y.L. Hao, Y.Y. Cui, M. Niinomi, Z.X. Guo, Wear characteristics of Ti-Nb-Ta-Zr and Ti-6Al-4V alloys for biomedical applications, Wear. 257 (2004) 869-867.

DOI: 10.1016/j.wear.2004.04.001

[7] T. Akahori, M. Niinomi, M. Nakai, H. Nishimura, Y. Takei, H. Fukui, M. Ogawa, Wear and mechanical properties, and cell viability of gas-nitrided beta-type Ti-Nb-Ta-Zr system alloy for biomedical applications, Materials Transactions. 49 (2008).

DOI: 10.2320/matertrans.mra2007210

[8] F.E.F. Almeida, R.A.C. Santana, S.J.G. Lima, S. Prasad, R.M. Gomes, Microstructure and electrochemical behavior of in vitro Ti-26Nb, Ti-26Zr and Ti-26Ta alloys processed by levitation melting technique, American Journal of Materials Science. 2 (2012).

DOI: 10.5923/j.materials.20120203.08

[9] M. Niinomi, T. Hattori, T. Kasuga, H. Fukui, Titanium and Its Alloys. Encyclopedia of Biomaterials and Biomedical Engineering, Marcel Dekker (2006).

DOI: 10.1201/b18990-279

[10] C.M. Cotrut, M. Balaceanu, I. Titorencu, V. Braic, M. Braic, ZrNbCN thin films as protective layers in biomedical applications, Surface and Coatings Technology 211 (2012) 57-61.

DOI: 10.1016/j.surfcoat.2011.08.016

[11] N. Sumitomo, K. Noritake, T. Hattori, K. Morikawa, S. Niwa, K. Sato, M. Niinomi, Experiment study on fracture fixation with low rigidity titanium alloy - plate fixation of tibia fracture model in rabbit, J. Mater. Sci.: Mater. in Medicine. 19 (2008).

DOI: 10.1007/s10856-008-3372-y