THE STUDY OF THE ELECTROCHEMICAL BEHAVIOR OF SUPERLASTIC Ti-Nb ALLOYS IN A MODEL PHYSIOLOGICAL SOLUTION UNDER THE CYCLIC LOADING


Cite item

Full Text

Abstract

The replacement of bone tissue is one of the most important issues of medicine, as evidenced by the ever-increasing volumes of relevant markets. The more and more advanced requirements are imposed on the materials for  the intrabone implants. For many years, the titanium-based alloys are widely used as a material for biomedical implants due to their unique combination of properties: high strength, low hardness and density, high corrosion resistance, and bio-compatibility. One of the most common reasons for the implant’s breakage is the corrosion-fatigue failure. Thus, the corrosion and electrochemical studies in the conditions simulating the finished product mode are of great practical importance.

The aim of this paper is the comparison of the electrochemical and corrosion behavior of Ti-22Nb-6Zr superelastic alloy and the commercially used pure titanium under the simulated conditions of service of loadbearing bone implants in the solution simulating the bone tissue environment. Free corrosion potential was measured on wire samples in the 0.9 % NaCl physiological solution (B. Braun, Germany) when applying bending load (maximum induced strain is 1.5 % with  the cyclic frequency of 0.9 Hz) until the sample failure. The study shows that the Ti-22Nb-6Zr alloy is better in terms of corrosion-fatigue behavior compared to pure Ti. In particular, it possesses the higher free corrosion potential values and its passive oxide film is more resistant to the impact of cyclic loading; consequently, the alloy possesses the longer fatigue life and the number of cycles until the implant’s failure is much greater.

About the authors

A. A. Korobkova

National University of Science and Technology MISiS

Author for correspondence.
Email: nastyakorobkova@gmail.com

postgraduate student

Россия

A. M. Kazakbiev

National University of Science and Technology MISiS

Email: kazakbiev@yandex.ru

postgraduate student

Россия

Yu. S. Zhukova

National University of Science and Technology MISiS

Email: sdubinskiy@gmail.com

PhD (Engineering), senior researcher

Россия

S. D. Prokoshkin

National University of Science and Technology MISiS

Email: prokoshkin@tmo.misis.ru

Doctor of Sciences (Physics and Mathematics), Professor, chief researcher

Россия

M. R. Filonov

National University of Science and Technology MISiS

Email: filonov@misis.ru

Doctor of Sciences (Engineering), Professor, vice-rector for science and innovation

Россия

References

  1. Hanawa T. Recent development of new alloys for bio-medical use. Materials science forum. – Trans Tech Publications, 2006, vol. 512, pp. 243–248.
  2. Miyazaki S., Kim H.Y., Hosoda H. Development and characterization of Ni-free Ti-base shape memory and superelastic alloys. Materials Science and Engineering: A, 2006, vol. 438-440, pp. 18–24.
  3. Long M., Rack H.J. Titanium alloys in total joint replacement – a materials science perspective. Biomaterials, 1998, vol. 19, no. 18, pp. 1621–1639.
  4. Brailovski V., Prokoshkin S., Gauthier M., Inaekyan K., Dubinskiy S., Petrzhik M., Filonov M. Bulk and porous metastable beta Ti-Nb-Zr(Ta) alloys for biomedical applications. Materials Science and Engineering: C, 2011, vol. 31, pp. 643–657.
  5. Okazaki Y. Effect of friction on anodic polarization properties of metallic biomaterials. Biomaterials, 2002, vol. 23, no. 9, pp. 2071–2077.
  6. Brunette D.M., Tengvall P., Textor M., Thomsen P. Titanium in medicine: material science, surface science, engineering, biological responses and medical applications. Berlin, Springer Publ., 2001. 1019 p.
  7. Ryhänen J. Biocompatibility of nickel‐ titanium shape memory metal and its corrosion behavior in human cell cultures. Journal of Biomedical Materials Research Part A, 1997, vol. 35, no. 4, pp. 451–457.
  8. Stern M., Wissenberg H. The influence of noble metal alloy additions on the electrochemical and corrosion behavior of titanium. Journal of the Electrochemical Society, 1959, vol. 106, no. 9, pp. 759–764.
  9. Fleck C., Eifler D. Corrosion, fatigue and corrosion fatigue behaviour of metal implant materials, especially titanium alloys. International Journal of Fatigue, 2010, vol. 32, pp. 929–935.
  10. Dubinskiy S.M., Prokoshkin S.D., Brailovski V., Inaekyan K.E., Korotitskiy A.V., Filonov M.R., Petrzhik M.I. Structure formation during thermomechanical processing of Ti-Nb-(Zr, Ta) alloys and the manifesta-tion of the shapememory effect. The physics of metals and metallograph, 2011, vol. 112, no. 5, pp. 503–516.
  11. Brailovski V., Prokoshkin S., Inaekyan K., Dubinskiy S., Gauthier M. Mechanical properties of thermomecha-nically processed metastable beta Ti-Nb-Zr alloys for biomedical applications. Materials science forum, 2012, vol. 455, pp. 706–709.
  12. Pustov Y.A., Zhukova Y.S., Filonov M.R. Kinetic regularities and mechanism of formation of nanosize passive films on titanium alloys for medical application and their electrochemical behavior in simulated physiological media. Protection of metals and Physical Chemistry Surfaces, 2014, vol. 50, pp. 315–321.
  13. Qiang L., Junjie L., Guanghao M., Xuyan L., Deng P. Influence of ω phase precipitation on mechanical performance and corrosion resistance of Ti–Nb–Zr alloy. Materials & Design, 2016, vol. 111, pp. 421–428.
  14. Bai Y., Li S.J., Prima F., Hao Y.L., Yang R. Electro-chemical corrosion behavior of Ti–24Nb–4Zr–8Sn alloy in a simulated physiological environment. Applied Sur-face Science, 2012, vol. 258, no. 8, pp. 4035–4040.
  15. Campanelli L.C., Bortlan C.C., Carvalho da Silva P.S., Bolfarini C., Oliveira N.T.C. Effect of an amorphous titania nanotubes coating on the fatigue and corrosion behaviors of the biomedical Ti-6Al-4V and Ti-6Al-7Nb alloys. Journal of the Mechanical Behavior of Biomedical materials, 2017, vol. 65, pp. 542–551.
  16. Chelariu R., Bolat G., Izquierdo J., Mareci D., Gordin D.M., Gloriant T., Souto R.M. Metastable beta Ti-Nb-Mo alloys with improved corrosion resistance in saline solution. Electrochimica Acta, 2014, vol. 137, pp. 280–289.
  17. Zhukova Y.S., Pustov Y.A., Konopatsky A.S., Filonov M.R. Characterization of Electrochemical Behavior and Surface Oxide Films on Superelastic Bimedical Ti-Nb-Ta Alloy in Simulated Physiological Solutions. Journal of Alloy Compounds, 2014, vol. 586, pp. S535–S538.
  18. Zhukova Y.S., Pustov Y.A., Konopatsky A.S., Dubinskiy S.M., Filonov M.R., Brailovski V. Corrosion fatigue and electrochemical behavior of superelastic Ti-Nb-Ta alloy for medical implants under cyclic load conditions. Materials Today Proceedings, 2015, vol. 2, pp. S991–S994.
  19. Bai Y. Electrochemical corrosion behavior of Ti–24Nb– 4Zr–8Sn alloy in a simulated physiological environment. Applied Surface Science, 2012, vol. 258, no. 8, pp. 4035–4040.
  20. Racek J. Monitoring tensile fatigue of superelastic NiTi wire in liquids by electrochemical potential. Shape Memory and Superelasticity, 2015, vol. 1, no. 2, pp. 204–230.

Supplementary files

Supplementary Files
Action
1. JATS XML
Download

Copyright (c)



This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies