%0 Journal Article %T Behavior of anodic layer in Ringer¡¯s solution on Ti6Al4V ELI alloy after bending %A E. Krasicka-Cydzik %A A. Kierzkowska %A I. Glazowska %J Archives of Materials Science and Engineering %D 2007 %I International OCSCO World Press %X Purpose: Characterization of the electrochemical behavior of anodized implant rods made of the titanium alloy Ti6Al4V ELI after immersion in air-saturated Ringer¡¯s solution was presented in the paper.Design/methodology/approach: The anodized and deformed by bending at angle 20o specimens (dia 6 mm) were characterized electrochemically in two zones: the max tensile (I) and the max. compressive stress (II). Impedance spectra (EIS) and corrosion potential measurements were performed on 1, 6, 10 and 16th day after immersion in Ringer`s solution.Findings: Bending caused an apparent decrease of the protective properties of the anodic layer, but the characteristic two-layer anodic film and the values of corrosion potentials were restored due to immersion in Ringer¡¯s solution. The regions of the compressive stresses show much stronger tendency to regenerate surface properties.Research limitations/implications: The electrochemical tests in Ringer¡¯s solution performed only in static conditions will be followed by fatigue tests in SBF.Practical implications: Results of the work are of great importance for surgical practice in the pre-operative stage of spinal surgery procedures. The explanation of the observed phenomena is proposed.Originality/value: Different stress zones formed on implant alloy during bending were described electrochemically. Results of studies evidenced that changes in the electrochemical behaviour in vitro in Ringer¡¯s solution are advantageous with regard to the protective properties of the investigated alloy. %K Biomaterials %K Bending %K Titanium alloy %K Behavior in vitro %U http://www.archivesmse.org/vol28_4/2846.pdf