Adhesion and corrosion resistance of laser-oxidized titanium in potential biomedical application

This study presents an analysis of the impact of the oxide layers, prepared by means of laser radiation in ambient air with different process parameters, on the morphology, corrosion resistance and adhesion properties of titanium grade 2. The samples were irradiated in and out of the focal plane, us...

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Bibliographic Details
Published in:Surface & coatings technology 2019-05, Vol.366, p.179-189
Main Authors: Łęcka, K.M., Gąsiorek, J., Mazur-Nowacka, A., Szczygieł, B., Antończak, A.J.
Format: Article
Language:English
Subjects:
Adhesion tests
Biocompatibility
Biomedical materials
Colorimetry
Corrosion
Corrosion resistance
Electrochemical impedance spectroscopy
Fiber laser
Fiber lasers
Focal plane
Impact analysis
Laser annealing
Laser-induced oxidation
Lasers
Microcracks
Morphology
Organic chemistry
Oxidation
Process parameters
Raman spectroscopy
Rapid prototyping
Roughness
Surface properties
Surgical implants
Titanium
Wettability
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Summary:This study presents an analysis of the impact of the oxide layers, prepared by means of laser radiation in ambient air with different process parameters, on the morphology, corrosion resistance and adhesion properties of titanium grade 2. The samples were irradiated in and out of the focal plane, using a commonly-available fiber laser (Yb:glass) system. The microscopic examination, colorimetry, roughness, chemical Raman analysis, electrochemical tests (electrochemical impedance spectroscopy) as well as adhesion, wettability and scratch-tests were conducted. The study has shown that laser oxidation, depending on the choice of process parameters, can contribute to both the improvement and deterioration of the surface quality, including the size and amount of microcracks, other defects or heterogeneities, roughness, and adhesion. The samples manufactured in the focal plane exert a higher corrosion resistance, higher adhesion and lower roughness, compared to those irradiated out of the focal plane. The aim of this study was to broaden the knowledge about the nature and influence of laser-induced oxidation in and out of the focal plane on selected properties of oxide layers. •Samples treated in the focal plane exert increase of the corrosion resistance.•Laser-induced coatings exert a hydrophilic character (water contact angle
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2019.03.032