Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5350372 | Applied Surface Science | 2015 | 8 Pages |
Abstract
In this paper, the microstructure, topography and morphology of TiN surface layer on NiTi alloy, and corrosion resistance, both before and after nitriding in low-temperature plasma at 290 °C, are presented. Examinations with the use of the potentiodynamic and electrochemical impedance spectroscopy methods were carried out and show an increase of corrosion resistance in Ringer's solution after glow-discharge nitriding. This surface titanium nitride layer also improved the adhesion of platelets and the proliferation of osteoblasts, which was investigated in in vitro experiments with human cells. Experimental data revealed that nitriding NiTi shape memory alloy under low-temperature plasma improves its properties for bone implant applications.
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Authors
Elżbieta Czarnowska, Tomasz Borowski, Agnieszka SowiÅska, Józef LelÄ
tko, Justyna Oleksiak, Janusz KamiÅski, MichaÅ Tarnowski, Tadeusz WierzchoÅ,