Characterisation and corrosion resistance of the electrodeposited hydroxyapatite and bovine serum albumin/hydroxyapatite films on Ti–6Al–4V–1Zr alloy surface

Vasilescu, Cora; Drob, Paula; Vasilescu, Ecaterina; Demetrescu, Ioana; Ioniță, Daniela; Prodana, Mariana; Drob, Silviu Iulian

doi:10.1016/j.corsci.2010.11.033

Cited by 97 publications

(58 citation statements)

References 50 publications

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“…R g higher values are related to less porous layers and vice versa 21 . Table 3 summarizes electrochemical impedance values found in other studies about titanium corrosion behavior 23,[30][31][32][33] . Table 3 shows that is very difficult to compare the impedance results with other authors as these results may vary in a wide range.…”

Section: Resultsmentioning

confidence: 99%

Corrosion Behavior Analysis of Plasma-assited PVD Coated Ti-6Al-4V alloy in 2 M NaOH Solution

et al. 2017

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The work aims the study of the corrosion behavior of nitride plasma-assisted PVD coated Ti-6Al-4V alloy in 2 M NaOH at 25 and 60°C, using open-circuit potential (OCP) versus time measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The uncoated Ti6Al-4V alloy showed a passive behavior. The TiN and TiAlN/TiAlCrN coated Ti-6Al-4V alloy also presented a passive behavior and the corrosion potential remained at the same range when compared with the potential of the uncoated alloy. The TiN hard coating showed a superior corrosion resistance, which was evidenced by lower corrosion current densities and higher impedance values. The increase in temperature decreased the corrosion resistance of both uncoated and coated alloy in NaOH.

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Section: Resultsmentioning

confidence: 99%

Corrosion Behavior Analysis of Plasma-assited PVD Coated Ti-6Al-4V alloy in 2 M NaOH Solution

et al. 2017

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“…However, a small number of studies used electrochemical impedance spectroscopy (EIS), and a few of them measured the impedance of the HA-Ti and its alloys system for times longer than 48 hours immersion 13,18,26 , which means that the characterization of the electrochemical behavior of many HA coatings should be investigated in more detail concerning their electrochemical. The EIS has the advantage of to be a non-destructive and transient technique, is able to separate the resistance of electrolyte from the processes occurring at the electrode/electrolyte interface, explores a great frequency range allowing to detect events occurring in a large time constants interval [27][28][29] .…”

Section: Introductionmentioning

confidence: 99%

“…Almost one hundred of works has been published dealing with the electrochemical, corrosion and/or mechanical properties of HA-based coatings applied on different substrates and produced by means of different techniques. The electrochemical characterization was largely done by open circuit potential (E OCP ) measurements and potentiodynamic polarization: lineal, Tafel and cyclic polarization 1,7,[13][14][15][16][17][18][19][20][21][22][23][24][25] . Tafel and cyclic polarization are good techniques for many studies but have the drawbacks to be destructive techniques due to the high potential polarization imposed which can damage the sample.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance Evaluation of HVOF Produced Hydroxyapatite and TiO2-hydroxyapatite Coatings in Hanks' Solution

et al. 2018

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The electrochemical behavior of HVOF produced hydroxyapatite (HA) and 80HA-20TiO 2 coatings were investigated using electrochemical techniques in natural aerated Hanks' solution in the presence and absence of bovine serum albumin (BSA) for 30 days. All samples presented open circuit potential oscillations, which were associated to the porous nature of the coating that allows the electrolyte reaches the substrate causing activation -passivation at the bottom of the pores. The polarization studies indicated that the 80HA-20TiO 2 coating was the only one that showed a narrow potential passive region from around -0.4 V to 0 V in the presence and absence of BSA, indicating the beneficial influence of the addition of TiO 2 to the HA coating stability. Our results indicated that BSA in Hanks' solution diminishes the stability of the metallic oxide layer present on the Ti-based alloy accelerating the degrading of hydroxyapatites coatings / substrate interface due to its chelating ability.

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“…The osseointegration of an implant and a bone is achieved the most often by surface deposition of hydroxyapatite (HAp) coatings [2]. The most popular deposition methods involve: plasma spraying [3], electrodeposition [4], CVD and PVD, sol-gel method and ion beam sputtering [5][6][7]. As those ceramic coatings are brittle, very thin coatings or nanocoatings are developed by the pulsed laser deposition (PLD) or electrophoretic techniques (EPD) [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Hydroxyapatite deposition on the laser modified Ti13Nb13Zr alloy

Jażdżewska

Majkowska-Marzec

2017

Advances in Materials Science

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The Ti13Nb13Zr alloy was subjected to laser modification with the Nd:YAG laser provided that such treatment would increase the surface roughness followed improved adhesion of hydroxyapatite (HAp) coatings The hydroxyapatite was deposited by electrophoretic method in suspension of 0.5 g HA powder and 100 ml ethyl alcohol. The deposition was carried out for 10 min at 10 V voltage followed by drying at room temperature for 24 h and heating at 800°C for 1 h in vacuum. The thickness of the HAp coatings was found as of about 4.06 µm to 9.05 µm. The examinations of surfaces were carried out at each stage of the experiment with the ultra-high resolution scanning electron microscope. The measurements of surface roughness after laser treatment and after HAp deposition were performed with the Hommel Etamic Waveline profilograph.

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Characterisation and corrosion resistance of the electrodeposited hydroxyapatite and bovine serum albumin/hydroxyapatite films on Ti–6Al–4V–1Zr alloy surface

Cited by 97 publications

References 50 publications

Corrosion Behavior Analysis of Plasma-assited PVD Coated Ti-6Al-4V alloy in 2 M NaOH Solution

Corrosion Behavior Analysis of Plasma-assited PVD Coated Ti-6Al-4V alloy in 2 M NaOH Solution

Corrosion Resistance Evaluation of HVOF Produced Hydroxyapatite and TiO2-hydroxyapatite Coatings in Hanks' Solution

Hydroxyapatite deposition on the laser modified Ti13Nb13Zr alloy

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