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Purpose: The plastic deformation behaviour of the anodized binary titanium alloy Ti6Al4V was characterized in mechanical and electrochemical tests. Design/methodology/approach: The effect of tensile and compressive stresses on properties of different clinically relevant surfaces of the deformed by bending implant rods was investigated. The deformation behaviour was characterized by FEM analysis. Relevant surfaces in tensile and compressive zones were characteristics by microhardness and roughness measurements, and electrochemical testing (Ecor, anodic polarization, EIS) in oxygen-saturated Ringer’s solution. Findings: It was concluded that bending influenced mostly the properties of material in the tensile zone of the specimen, whereas the properties of surface layer in the compressive zone and the properties of surface layer in tensile zone after rebending are comparable and not so severe. Research limitations/implications: Studies were performed in static conditions, fatique studies are planned in the future. Practical implications: Results are of great importance in for surgical practice in the in the evaluation of the influence of shaping process applied during pre-operative procedures on the performance of spinal implant systems. Originality/value: In the paper a typical pre-operative procedure of shaping was applied to anodized titanium implants in order to evaluate its influence on the characteristics of the surface layer. Studies were focused on the safety their application in vivo.
Wydawca
Rocznik
Tom
Strony
139--142
Opis fizyczny
Bibliogr. 15 poz., rys., wykr.
Twórcy
autor
- Department of Mechanical Engineering, University of Zielona Gora, ul. Podgorna 50, 65-246 Zielona Gora, Poland
autor
- Department of Mechanical Engineering, University of Zielona Gora, ul. Podgorna 50, 65-246 Zielona Gora, Poland
autor
- Department of Mechanical Engineering, University of Zielona Gora, ul. Podgorna 50, 65-246 Zielona Gora, Poland
Bibliografia
- [1] E.Krasicka-Cydzik, A.Kierzkowska, The effect of bending on the electrochemical behaviour of Ti6Al4V alloy in vitro, Biomaterials Engineering 37 (2004), 53-56.
- [2] J.Marciniak, W.Chrzanowski, J.Zak, Surface structure modification of Ti6Al4V ELI alloy, Biomaterials Engineering 30-33 (2003), 56-58.
- [3] J.R. Goldberg, J.L. Gilbert, The electrochemical and mechanical behavior of passivated and TiN/AlN-coated CoCrMo and Ti6Al4V alloys, Biomaterials 25 (2004); 851.
- [4] Ch. Leinenbach, C. Fleck, D. Eifler, The cyclic deformation behaviour and fatigue induced damage of the implant alloy TiAl6Nb7 in simulated physiological media, Electrochimica Acta 49 (2004), 4563-4576.
- [5] Ch. Leinenbach, D. Eifler, Fatigue and cyclic deformation behaviour of surface-modified titanium alloys in simulated physiological media. Biomaterials, 2006 Mar; 27(8):1200-8.
- [6] J. Marciniak, Biomaterials, Technical University of Upper Silesia Press, 2002 (in Polish).
- [7] P. Peyre, X. Scherpereel, L. Berthe, Surface modifications induced in 316L steel by laser peening and shot-peening. Influence on pitting corrosion resistance, Matererials Science Engineering 280 (2000), 294-302.
- [8] V.Vignal, C. Valot, R. Oltra, M. Verneau, L. Coudreuse, Analogy between the effects of a mechanical and chemical perturbation on the conductivity of passive films, Corrosion Science 44 (2002), 1477-1496.
- [9] E. Krasicka-Cydzik, PL Patent No. 324134, Pol. Ziel., 2002.
- [10] E. Krasicka-Cydzik, Formation of thin anodic layers on titanium and its implant alloys in phosphoric acid solutions, Zielona Gora University Press, 2003, (in Polish).
- [11] W. Ziaja, J. Sieniawski, M. Motyka, Titanium and titanium alloys, Warsaw, 2005, 319-324.
- [12] C.H. Goh, J.M. Wallace, R.W. Neu, D.L. McDowell, Polycrystal plasticity simulations of fretting fatigue, International Journal of Fatigue 23 (2001), 423-535.
- [13] E. Krasicka-Cydzik, A. Kierzkowska, I. Glazowska, Effect of bending on anodized Ti6Al4V alloy: II. Electrochemical behavior of deformed material in vitro; this journal, submitted.
- [14] K. Yamamoto, Y. Kawaguchi, T. Yasunaga, T. Sato, Cracking behavior of AIP-coated metal nitrides under tensile stress, Surface and Coatings Technology 113 (1999), 227.
- [15] M.P. Nascimento, R.C. Souza, W.L. Pigatin, H.J.C. Voorwald, Effect of surface treatment on the fatigue strength of AISI 4340 aeronautical stell, International Journal of Fatigue 23 (2001), 607-618.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-994e0073-c071-4714-a53f-b1416f56c617