A facile electrodeposition of hydroxyapatite onto borate passivated surgical grade stainless steel

► Successful deposition of hydroxyapatite on 316L SS by a facile electrolytic Method. ► Improvement of bio-resistivity of the alloy by increasing the time of borate Passivation. ► Evolution of stable, bio-resistive hydroxyapatite coatings on borate passivated 316L SS. This paper reports a successful...

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Bibliographic Details
Published in:Corrosion science 2011-06, Vol.53 (6), p.2328-2334
Main Authors: Gopi, D., Collins Arun Prakash, V., Kavitha, L., Kannan, S., Bhalaji, P.R., Shinyjoy, E., Ferreira, J.M.F.
Format: Article
Language:English
Subjects:
A. Ceramic
A. Stainless steel
Alloy steels
Applied sciences
Austenitic stainless steels
B. AFM
B. EIS
B. Polarization
Borates
C. Passive films
Coatings
Corrosion
Corrosion environments
Deposition
Electrical resistivity
Electrodeposition
Exact sciences and technology
Heat resistant steels
Hydroxyapatite
Metallic coatings
Metals. Metallurgy
Nonmetallic coatings
Passivation
Production techniques
Stainless steels
Surface treatment
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Summary:► Successful deposition of hydroxyapatite on 316L SS by a facile electrolytic Method. ► Improvement of bio-resistivity of the alloy by increasing the time of borate Passivation. ► Evolution of stable, bio-resistive hydroxyapatite coatings on borate passivated 316L SS. This paper reports a successful electrodeposition method for coating hydroxyapatite (HAP) onto surgical grade stainless steel (SS). Pure HAP coatings could be achieved at −1400 mV vs SCE and the coating resistivity was assessed by potentiodynamic polarization and impedance techniques which showed that HAP coatings deposited onto the borate passivated-SS specimens possess maximum bioresistivity in Ringer’s solution. The coatings were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Atomic force microscopy (AFM). The results have showed that the borate passivation followed by HAP coating performed on 316L SS could enhance the longevity of the alloy in Ringer’s solution.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2011.03.018