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Materials 2015, 8(1), 205-215;

Nanoindentation and XPS Studies of Titanium TNZ Alloy after Electrochemical Polishing in a Magnetic Field

Division of Surface Electrochemistry, Koszalin University of Technology, Racławicka 15-17, Koszalin 75-620, Poland
Electrobright, 142 W. Main St., Macungie, PA 18062, USA
Institut de Recherche de Chimie Paris, CNRS–Chimie ParisTech, 11 rue Pierre et Marie Curie, Paris 75005, France
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Daolun Chen
Received: 19 September 2014 / Accepted: 25 December 2014 / Published: 8 January 2015
(This article belongs to the Section Biomaterials)
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This work presents the nanoindentation and XPS results of a newly-developed biomaterial of titanium TNZ alloy after different surface treatments. The investigations were performed on the samples AR (as received), EP (after a standard electropolishing) and MEP (after magnetoelectropolishing). The electropolishing processes, both EP and MEP, were conducted in the same proprietary electrolyte based on concentrated sulfuric acid. The mechanical properties of the titanium TNZ alloy biomaterial demonstrated an evident dependence on the surface treatment method, with MEP samples revealing extremely different behavior and mechanical properties. The reason for that different behavior appeared to be influenced by the surface film composition, as revealed by XPS study results displayed in this work. The increase of niobium and zirconium in the surface film of the same titanium TNZ alloy after magnetoelectropolishing MEP treatment is meaningful and especially advantageous considering the application of this alloy as a biomaterial. View Full-Text
Keywords: nanoindentation; XPS studies; magnetoelectropolishing (MEP); TNZ surface nanoindentation; XPS studies; magnetoelectropolishing (MEP); TNZ surface

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Hryniewicz, T.; Rokosz, K.; Rokicki, R.; Prima, F. Nanoindentation and XPS Studies of Titanium TNZ Alloy after Electrochemical Polishing in a Magnetic Field. Materials 2015, 8, 205-215.

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