Effect of Surface Pretreatment on Corrosion Resistance of Anodically Oxidized Ti6Al7Nb Alloy

Szewczenko, Janusz; Marciniak, J.; Tyrlik-Held, J.; Nowińska, Katarzyna

doi:10.1007/978-3-642-31196-3_40

Cited by 11 publications

(6 citation statements)

References 12 publications

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“…The most commonly used method is anodic oxidation, which results in a homogeneous continuous passive layer. It provides high corrosion resistance in the environment of tissues and body fluids, however, it does not eliminate the degra-dation process, which, in the case of Ti6Al4V and Ti6Al7Nb alloys, results in the presence of vanadium and aluminium ions [2], [12], [13], [21], [22].…”

Section: Introductionmentioning

confidence: 99%

Biodegradable polymer coatings on Ti6Al7Nb alloy

Szewczenko¹,

Kajzer²,

Kajzer³

et al. 2019

Acta Bioeng Biomech

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The aim of the study was to determine the influence of long term exposure to Ringer's solution of biodegradable polymer coatings containing an active substance on the Ti6Al7Nb alloy substrate on the physical and chemical properties of the coatings and the degradation process of the metal substrate. The studies used poly(L-lactide-co-trimethylene carbonate) P(L/TMC), poly(L-lactide-co-trimethylene carbonate-glycolide) P(L/TMC/G) and poly(D,L-lactide-glycolide) (PLGA) coatings applied to the anodically oxidized Ti6Al7Nb alloy by means of dipping method (1, 2 and 3 dips). The polymer coatings contained ciprofloxacin. Roughness and wettability tests were carried out on the substrate and polymer coatings, the pitting corrosion resistance of the substrate and samples with polymer coating was determined, the number of metallic ions released to the solution from the coated and uncoated samples was determined as well as the adhesion of polymer coatings. The research was supplemented by microscopic observations. The results of the research indicate different influence of exposure to Ringer's solution on the physical and chemical properties of biodegradable polymer coatings containing ciprofloxacin and the course of the degradation process of the metal substrate.

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Section: Introductionmentioning

confidence: 99%

Biodegradable polymer coatings on Ti6Al7Nb alloy

Szewczenko¹,

Kajzer²,

Kajzer³

et al. 2019

Acta Bioeng Biomech

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“…Polymer layers maintain the topography of metal. The reason that contributed to the satisfactory polymer layer adhesion was the developed process of surface modification of the Ti6Al7Nb (Figure ), which was presented in detail in the previous works (Marciniak, Szewczenko, & Kajzer, ; Szewczenko, Marciniak, Tyrlik‐Held, & Nowinska, ; Szewczenko, Nowinska, & Marciniak, ). Our parallel study (Szewczenko et al, ) used acoustic microscopy and scratch test analysis to characterize the influence of the surface topography of the Ti6Al7Nb alloy on the adhesion of the PLGA coating.…”

Section: Discussionmentioning

confidence: 82%

Development of antibacterial, ciprofloxacin‐eluting biodegradable coatings on Ti6Al7Nb implants to prevent peri‐implant infections

Jaworska

Jelonek

Jaworska-Kik

et al. 2020

J Biomedical Materials Res

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Various types of biodegradable polymers containing lactide, glycolide, caprolactone, and trimethylene carbonate units have been used to obtain ciprofloxacin (CFX)enriched coatings developed on the Ti6Al7Nb alloy, intended for short-term therapy.In the first step, the surface of the Ti6Al7Nb alloy was modified, mostly according to sandblasting and anodic oxidation to obtain the TiO 2 layer. Anodizing can be an effective method for preparing TiO 2 coatings with osteoconductive properties. The polymer containing CFX molecules was deposited on the modified alloy, and Polymer + CFX/TiO 2 /Ti6Al7Nb systems were developed. CFX-enriched coatings adhered well to the surface of the previously modified alloy. Polymer layers maintain the topography of the alloy due to the development of the surface during the sandblasting method. As polymers intended for the study possess degradation ability, they are capable of releasing the incorporated drug. Antibacterial activity of CFX-enriched coatings was examined to verify the functionality of designed Polymer + CFX/TiO 2 / Ti6Al7Nb systems, and the bactericidal effect was confirmed for all cases. The presented study is an extension of previous, initial research and creates an overview of polyester or polyestercarbonate CFX-eluting coatings. K E Y W O R D Sciprofloxacin, drug delivery, implants, polyester, Ti6Al7Nb

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“…In order to increase the corrosion resistance it is possible to use alternative biomaterials e.g. titanium and its modified alloys [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Kajzer

Antonowicz

Ziębowicz

2018

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STUDIES OF THE CORROSION RESISTANCE PROPERTIES OF BONE SCREWS MADE FROM 316L STAINLESS STEEL IN RINGER'S SOLUTIONStainless steel 316L is one of the most common metallic biomaterials used for implants. Its passive surface provides a good corrosion resistance in the body environment, which can be reduced by surface mechanical damages. This is the reason why the bone screws made of stainless steel 316L were subjected to laboratory analysis in the initial state, after diversified implantation period and after mechanical damage of the surface. The mechanical damages were estimated on the basis of stereoscopic and scanning electron microscope (SEM). In order to estimate the pitting and crevice corrosion resistance, potentiodynamic and potentiostatic examinations were performed. On the basis of obtained results it can be stated that despite the visible damages on the surface, the investigated screws present a good pitting corrosion resistance. However, the way the screws were fastened caused frictional corrosion and existing cavities led to crevice corrosion. Moreover, clear correlation between magnitude of mechanical damages of the surface, implantation time and screws corrosion resistance was observed.

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Effect of Surface Pretreatment on Corrosion Resistance of Anodically Oxidized Ti6Al7Nb Alloy

Cited by 11 publications

References 12 publications

Biodegradable polymer coatings on Ti6Al7Nb alloy

Biodegradable polymer coatings on Ti6Al7Nb alloy

Development of antibacterial, ciprofloxacin‐eluting biodegradable coatings on Ti6Al7Nb implants to prevent peri‐implant infections

Archives of Metallurgy and Materials

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