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Abstracts
Magnesium and its alloys are interesting materials for biodegradable implant applications. Magnesium alloys have very good strength properties, they are lightweight, but their main disadvantage is a low corrosion resistance in the physiological environment. Various modifications of a Mg alloys surface by deposition of different coatings are used to prevent untimely dissolution. The article presents the investigation results of a thin ZnO coating deposited on a MgCa2Zn1Gd3 alloy by means of the magnetron sputtering method. The studies include: scanning electron microscope observation of the ZnO surface, X-ray phase analysis, surface roughness measurement in atomic force microscopy, the microhardness test and potentiodynamic corrosion resistance test in the Ringer solution at 37°C. It was found that the ZnO coating is compact and continuous. It increases the hardness of the MgCa2Zn1Gd3 alloy and also improves its corrosion resistance. The corrosion potential is shifted slightly towards the positive values from -1.52 V to -1.50 V for the alloy with the ZnO coating.
Discipline
- 61.05.cp: X-ray diffraction
- 68.55.-a: Thin film structure and morphology(for methods of thin film deposition, film growth and epitaxy, see 81.15.-z)
- 68.37.Ps: Atomic force microscopy (AFM)
- 82.45.Bb: Corrosion and passivation(see also 81.65.Kn Corrosion protection and 81.65.Rv Passivation in surface treatments)
Journal
Year
Volume
Issue
Pages
222-224
Physical description
Dates
published
2018-02
Contributors
author
- Institute of Engineering Materials and Biomaterials, Silesian University of Technology, S. Konarskiego 18a, 44-100 Gliwice, Poland
author
- Institute of Engineering Materials and Biomaterials, Silesian University of Technology, S. Konarskiego 18a, 44-100 Gliwice, Poland
author
- Institute of Engineering Materials and Biomaterials, Silesian University of Technology, S. Konarskiego 18a, 44-100 Gliwice, Poland
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-app133z2p02kz