Next Article in Journal
Fabrication Technology and Material Characterization of Hot Rolled Cylindrical Fe-6.5 wt. % Si Bars
Next Article in Special Issue
Combined Galvanostatic and Potentiostatic Plasma Electrolytic Oxidation of Titanium in Different Concentrations of H2SO4
Previous Article in Journal
Transformation Induced Plasticity Effects of a Non-Equal Molar Co-Cr-Fe-Ni High Entropy Alloy System
Previous Article in Special Issue
Plasma Electrolytic Oxidation of High-Strength Aluminium Alloys—Substrate Effect on Wear and Corrosion Performance
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessFeature PaperArticle

The Influence of the Electrolyte Nature and PEO Process Parameters on Properties of Anodized Ti-15Mo Alloy Intended for Biomedical Applications

1
Haute Ecole Arc Ingénierie (HES-SO), Eplatures-Grise 17, CH-2300 La Chaux-de-Fonds, Switzerland
2
Ukrainian State University of Chemical Technology (USUCT), Gagarin Av. 8, UA-49005 Dnepropetrovsk, Ukraine
3
Laboratory of Biomaterials, University of Geneva, rue Michel-Servet 1, CH-1204 Geneva, Switzerland
*
Author to whom correspondence should be addressed.
Metals 2018, 8(5), 370; https://doi.org/10.3390/met8050370
Received: 26 April 2018 / Revised: 15 May 2018 / Accepted: 18 May 2018 / Published: 21 May 2018
(This article belongs to the Special Issue Plasma Electrolytic Oxidation)
  |  
PDF [4027 KB, uploaded 21 May 2018]
  |  

Abstract

Plasma electrolytic oxidation (PEO) of Ti-15Mo alloys conducted in electrolytes containing Ca and P compounds can be an efficient process with which to obtain bioactive coatings. This paper reports on the influence of the nature of the electrolyte, its concentration, and PEO process parameters on the properties of anodized layers on Ti-15Mo. A wide range of Ca- and P-containing alkaline and acidic solutions was employed to incorporate Ca and P ions into the anodized layer. The efficiency of the incorporation was evaluated by the Ca/P ratio in the coating as compared to that in the electrolyte. It was found that alkaline solutions are not suitable electrolytes for the formation of good quality, uniform PEO coatings. Only acidic electrolytes are appropriate for obtaining well-adherent homogeneous layers on Ti-15Mo. However, the maximum Ca/P ratios reached in the coatings were rather low (close to 1). The variation of electrical signal (negative-to-positive current ratio, frequency) and time of electrolysis do not result in a substantial change of this value. The processing time, however, did influence the coating thickness. Despite their low Ca/P ratio, the anodized layers demonstrate good biological activity, comparable to pure microrough titanium. View Full-Text
Keywords: beta-titanium alloys; Ti-15Mo; biocompatible coatings; plasma electrolytic oxidation beta-titanium alloys; Ti-15Mo; biocompatible coatings; plasma electrolytic oxidation
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Banakh, O.; Snizhko, L.; Journot, T.; Gay, P.-A.; Csefalvay, C.; Kalinichenko, O.; Girin, O.; Marger, L.; Durual, S. The Influence of the Electrolyte Nature and PEO Process Parameters on Properties of Anodized Ti-15Mo Alloy Intended for Biomedical Applications. Metals 2018, 8, 370.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top