SEM and EDS analysis of nitinol surfaces treated by Plasma Electrolytic Oxidation

• Autorzy: Rokosz K. , Hryniewicz T. , Dudek Ł. , Malorny W.

Identyfikatory

DOI

10.1515/adms-2015-0014

• Języki publikacji: EN

Abstrakty

EN

In the paper, the surface layers formed on nickel-titanium alloy during Plasma Electrolytic Oxidation (PEO), known also as Micro Arc Oxidation (MAO), are described. The mixture of phosphoric acid and copper nitrate as the electrolyte for all plasma electrochemical processes was used. Nitinol biomaterial was used for the studies. All the experiments were performed under the voltage of 450 V and current density of 0.3 A/dm2. The main purpose of the studies was to achieve the highest amount of copper in the surface layer versus amount of the copper nitrate in phosphoric acid. The highest copper concentration was found in the surface layer after the PEO treatment in the electrolyte consisting of 150g Cu(NO3)2 in 0.5 dm3 H3PO4. The worst results, in case of the amount of copper in the NiTi surface layer, were recorded after oxidizing in the solution with 5 g Cu(NO3)2.

Słowa kluczowe

EN

Plasma Electrolytic Oxidation; PEO; micro arc oxidation; MAO; SEM; titanium alloy; NiTi

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2015
• Tom: Vol. 15, nr 3(45)
• Strony: 41--47
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

Twórcy

autor

Rokosz K.

• Koszalin University of Technology, Faculty of Mechanical Engineering, Racławicka 15-17 75-620 Koszalin, Poland

autor

Hryniewicz T.

• Koszalin University of Technology, Faculty of Mechanical Engineering, Racławicka 15-17 75-620 Koszalin, Poland

autor

Dudek Ł.

• Koszalin University of Technology, Faculty of Mechanical Engineering, Racławicka 15-17 75-620 Koszalin, Poland

autor

Malorny W.

• Hochschule Wismar-University of Applied Sciences Technology, Business and Design, Faculty of Engineering, DE 23966 Wismar, Germany

Bibliografia

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• 2. Hryniewicz T., Concept of microsmoothing in electropolishing process, Surface and Coatings Technology, 1994, 64(2), 75-80.
• 3. Rokosz K., Polerowanie elektrochemiczne stali w polu magnetycznym (Electrochemical polishing of steels in the magnetic field), Monograph Nr 219, Publisher: Koszalin University of Technology, Koszalin 2012, ISSN 0239-7129, (211 pages, in Polish).
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• 7. Hryniewicz T., Rokicki R., Rokosz K., Magnetoelectropolishing for metal surface modification, Transactions of the Institute of Metal Finishing, 2007, 85(6), 325-332.
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