Surface characterisation of Ti-15Mo alloy modified by a PEO process in various suspensions

Alicja Kazek-Kęsik; Grzegorz Dercz; Izabela Kalemba; Katarzyna Suchanek; Andrey I Kukharenko; Danila M Korotin; Joanna Michalska; Agnieszka Krząkała; Jerzy Piotrowski; Ernst Z Kurmaev; Seif O Cholakh; Wojciech Simka

doi:10.1016/j.msec.2014.03.008

Surface characterisation of Ti-15Mo alloy modified by a PEO process in various suspensions

Mater Sci Eng C Mater Biol Appl. 2014 Jun 1:39:259-72. doi: 10.1016/j.msec.2014.03.008. Epub 2014 Mar 12.

Affiliations

¹ Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego Street 6, 44-100 Gliwice, Poland.
² Institute of Materials Science, University of Silesia, 75 Pułku Piechoty Street 1 A, 41-500 Chorzow, Poland.
³ Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Mickiewicza Street 30, 30-059 Krakow, Poland.
⁴ The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego Street 152, 31-342 Krakow, Poland.
⁵ Institute of Metal Physics, Russian Academy of Sciences-Ural Division, S. Kovalevskoi Street 18, 620990 Yekaterinburg, Russia; Ural Federal University, Mira Street 19, 620002 Yekaterinburg, Russia.
⁶ Faculty of Materials Science and Metallurgy, Silesian University of Technology, Krasińskiego Street 8, 40-019 Katowice, Poland.
⁷ Institute of Metal Physics, Russian Academy of Sciences-Ural Division, S. Kovalevskoi Street 18, 620990 Yekaterinburg, Russia.
⁸ Ural Federal University, Mira Street 19, 620002 Yekaterinburg, Russia.
⁹ Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego Street 6, 44-100 Gliwice, Poland. Electronic address: wojciech.simka@polsl.pl.

PMID: 24863224
DOI: 10.1016/j.msec.2014.03.008

Abstract

This paper reports on the surface modification of a Ti-15Mo alloy by plasma electrolytic oxidation (PEO). This process was carried out in solutions of 0.1M Ca(H2PO2)2 with various concentrations of tricalcium phosphate (Ca3(PO4)2), wollastonite (CaSiO3), or silica (SiO2) using voltages of up to 350V. The surface microstructure (SEM, cross-section of coating), roughness and chemical composition (energy-dispersive X-ray spectroscopy, thin layer X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy) of the porous oxide layers were investigated. The concentration of powder added to the solution changed the chemical composition and morphology of PEO coatings on the Ti-15Mo alloy surface. Calcium and phosphorous compounds were detected in the coatings formed on the substrate by the PEO process at 300V.

Keywords: Plasma electrolytic oxidation; Silica; Surface modification; TCP; Vanadium-free titanium alloy; Wollastonite.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Alloys / chemistry*
Calcium Phosphates / chemistry
Coated Materials, Biocompatible / chemistry
Electrolysis / methods*
Materials Testing / methods
Oxidation-Reduction*
Photoelectron Spectroscopy
Porosity
Silicon Dioxide / chemistry
Spectrometry, X-Ray Emission
Surface Properties
Suspensions
X-Ray Diffraction

Substances

Alloys
Calcium Phosphates
Coated Materials, Biocompatible
Suspensions
titanium molybdenum alloy
Silicon Dioxide
tricalcium phosphate