Influence of the anodic oxidation on the physicochemical properties of the Ti6Al4V ELI alloy

Chrzanowski, Wojciech; Szewczenko, Janusz; Tyrlik-Held, J.; Marciniak, J.; Żak, Jerzy

doi:10.1016/j.jmatprotec.2005.02.203

Cited by 31 publications

(15 citation statements)

References 9 publications

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“…Here in this study, the authors made an attempt to investigate from a wear and mechanical point of view the suitability of two types of surface treatments for nickel-titanium alloy. These treatments were previously used for titanium and its alloys to improve corrosion, wear and also biological properties of the alloys for biomedical applications ( Wen et al 1998;Wang et al 2000;Hassel 2004;Rocher et al 2004;Chrzanowski et al 2005;Kokubo 2005;Mändl et al 2006;Shukla & Balasubramaniam 2006). In this study, nitinol samples were prepared in two different ways: alkali followed by thermal treatment and spark oxidation; the samples treated in both ways were compared with a ground sample that was used as a reference.…”

Section: Discussionmentioning

confidence: 99%

“…Despite the fact that oxidation parameters play an important role in the properties of the oxide layer, variances in this process were not considered in this study and the conditions of oxidation were chosen according to previous authors' experience using highvoltage oxidation with direct current (Chrzanowski et al 2005). This was also presented to have a positive influence on corrosion resistance of titanium alloys (Ti6Al4V, Ti6Al7Nb).…”

Section: Discussionmentioning

confidence: 99%

“…Among the methods that were previously used to improve mainly biological properties of titanium and its alloys (Ti6Al4V, Ti6Al7Nb), thermal, alkali and electrochemical treatments are of interest to the authors (Kokubo 1998;Firstov et al 2002;Chen et al 2003Chen et al , 2004Shevchenko et al 2004;Chrzanowski et al 2005;Gu et al 2005;Cheng & Zheng 2006b;Chrzanowski 2006;Shukla & Balasubramaniam 2006;Armitage & Chrzanowski 2007;Kawakita et al 2007;Wen et al 2007). Electrochemical and chemical treatment in conjunction with heat treatment improved the bioactivity through the alteration to the topography, structure and chemical composition of the surface.…”

Section: Introductionmentioning

confidence: 99%

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Nanomechanical evaluation of nickel–titanium surface properties after alkali and electrochemical treatments

Chrzanowski

Neel

Armitage

et al. 2008

J. R. Soc. Interface.

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In this paper, the suitability of alkali treatment followed by heat treatment at 6008C, and spark oxidation for nickel-titanium, intended for medical applications such as pins, wires and clamps, was evaluated on the basis of nanomechanical and wear testing. In addition, the chemical composition and topography of the surface layer, wetting ability, corrosion resistance and influence of the heat treatment on structure of the alloy were also investigated. The results showed that the highest hardness was observed for alkali-treated samples, and this could be correlated with the structure of the sample that contained martensite and a higher phase transformation temperature. This treatment caused a very large increase of nickel in the top layer and decreased resistance in pitting corrosion. These results disqualified the treatment to be considered as useful for medical applications. On the other hand, the hardness of the oxidized samples was at the same level as that obtained for ground reference samples. Moreover, the oxide layer was enriched with phosphorus, and it was predominantly composed of TiO 2 and phosphorus oxides. This 3.1 mm thick layer had good adhesion to the substrate as indicated by scratch testing and wear resistant in nanowear testing. However, the oxidation did not significantly increase the corrosion resistance of the alloy compared with reference samples.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nanomechanical evaluation of nickel–titanium surface properties after alkali and electrochemical treatments

Chrzanowski

Neel

Armitage

et al. 2008

J. R. Soc. Interface.

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“…Anodic layers on pure Ti and its alloys Ti6Al4V ELI and Ti6Al7Nb (ASTM F136-84), alloys in the annealed condition) can be formed by anodizing carried out at ambient pressure and room temperature in non-deaerated electrolyte solutions of 0.5 M H 3 PO 4 . Both techniques, the galvanostatic at anodizing current density values varied in the range of 0.1-0.5 Am-2 and the potentiostatic at up to 60V [22] are used.…”

Section: Thin Porous Anodic Layersmentioning

confidence: 99%

Anodic Layer Formation on Titanium and Its Alloys for Biomedical Applications

Krasicka-Cydzik¹

2012

Titanium Alloys - Towards Achieving Enhanced Properties for Diversified Applications

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“…Por tal razón se han desarrollado investigaciones en las principales propiedades responsables de la biocompatibilidad, como: bajo nivel de conductividad electrónica, alta resistencia a la corrosión, estado termodinámico a condiciones de pH en medio fisiológico, entre otras [1][2].…”

Section: Introductionunclassified

Análisis de la biocompatibilidad de Ti6Al4V y acero inoxidable 316 LVM basado en efectos de pH, aplicando criterios de la norma ASTM F2129

Sarmiento

Correa²,

Durán

2017

Ingeniare. Rev. chil. ing.

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RESUMENSe estudió el efecto del pH en el comportamiento de la corrosión del acero inoxidable 316 LVM y la aleación de Ti6Al4V ELI mediante técnicas electroquímicas, como Polarización Potenciodinámica Cíclica y Espectroscopia de Impedancia Electroquímica. La velocidad de corrosión se calculó por extrapolación de las pendientes Tafel y se analizó la susceptibilidad a las picaduras de cada uno de los materiales sometidos a condiciones de concentración de 3% de NaCl y un amplio rango de pH (4,5-6-7,5-10-12). Los resultados obtenidos indicaron que las condiciones de pH 4,5 tienen un efecto negativo en la velocidad de corrosión de ambos materiales comparado con los otros pH.Palabras clave: Velocidad de corrosión, susceptibilidad a la picadura, impedancia electroquímica, polarización potenciodinámica cíclica, biomateriales. . The results exhibited that the conditions of pH 4,5 has negative effect in the corrosion rate for both materials compared with other pH. ABSTRACT The effect of pH on corrosion behaviour in stainless steel 316 LVM and alloy Ti6Al4V was studied by various electrochemical techniques such as cyclic potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The corrosion rate was calculated with Tafel extrapolations and the pitting corrosion was also analysed for each material in different conditions of concentration 3% of

show abstract

Influence of the anodic oxidation on the physicochemical properties of the Ti6Al4V ELI alloy

Cited by 31 publications

References 9 publications

Nanomechanical evaluation of nickel–titanium surface properties after alkali and electrochemical treatments

Nanomechanical evaluation of nickel–titanium surface properties after alkali and electrochemical treatments

Anodic Layer Formation on Titanium and Its Alloys for Biomedical Applications

Análisis de la biocompatibilidad de Ti6Al4V y acero inoxidable 316 LVM basado en efectos de pH, aplicando criterios de la norma ASTM F2129

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