Preparation of biomedical Ag incorporated hydroxyapatite/titania coatings on Ti6Al4V alloy by plasma electrolytic oxidation

2014 ◽  
Vol 23 (3) ◽  
pp. 035205 ◽  
Author(s):  
Lan Zhou ◽  
Guo-Hua Lü ◽  
Fei-Fei Mao ◽  
Si-Ze Yang
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Ti6al4v Alloy ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Titania Coatings

Micromilling of Ti6Al4V alloy assisted by plasma electrolytic oxidation

2020 ◽  
Vol 31 (1) ◽  
pp. 015004
Author(s):  
Yizhong Hu ◽  
Jianbing Meng ◽  
Xiaosheng Luan ◽  
Xiaojuan Dong ◽  
Haian Zhou ◽  
...  
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Ti6al4v Alloy ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

scholarly journals Characterization of Coatings Created on Selected Titanium Alloys by Plasma Electrolytic Oxidation

2016 ◽  
Vol 16 (1) ◽  
pp. 5-16 ◽  
Author(s):  
K. Rokosz ◽  
T. Hryniewicz ◽  
W. Malorny
Keyword(s):  
Phosphoric Acid ◽  
Titanium Alloys ◽  
Plasma Electrolytic Oxidation ◽  
Copper Nitrate ◽  
Ti6al4v Alloy ◽  
Pure Niobium ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

Abstract The SEM and EDS results of coatings obtained on pure niobium and titanium alloys (NiTi and Ti6Al4V) by Plasma Electrolytic Oxidation in the electrolytes containing of 300 g and 600 g copper nitrate in 1 litre of concentrated phosphoric acid at 450 V for 3 minutes, are presented. The obtained coatings are porous and consist mainly of phosphorus within titanium and copper. For each coating, the Cu/P ratios were calculated. The maximum of that coefficient was found for niobium and Ti6Al4V alloy oxidised in the electrolyte containing 600 g of Cu(NO3)2 in 1 dm3 of H3PO4 and equaling to 0.22 (wt%) | 0.11 (at%). The minimum of Cu/P ratio was recorded for NiTi and Ti6Al4V alloys oxidised by PEO in electrolyte consisting of 300 g of copper nitrate in 1 dm3 of concentrated phosphoric acid and equals to 0.12 (wt%) | 0.06 (at%). The middle value of that ratio was recorded for NiTi and it equals to 0.16 (wt%) | 0.08 (at%).

scholarly journals Incorporation of zirconium into PEO coating on Ti6Al4V alloy from acidic electrolyte

2021 ◽  
Vol 8 (6) ◽  
pp. 974-989
Author(s):  
Jie Sun ◽  
◽  
Tzvetanka Boiadjieva-Scherzer ◽  
Hermann Kronberger ◽  
Keyword(s):  
Phase Composition ◽  
Plasma Electrolytic Oxidation ◽  
Ti6al4v Alloy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electrolytic Oxidation ◽  
Acidic Electrolyte ◽  
Plasma Electrolytic ◽  
Cu And Zn ◽  
Zr Alloys

<abstract> <p>To imitate the superior biocompatibility of Ti–Zr alloys at reduced cost, conventional Ti6Al4V alloy was modified via plasma electrolytic oxidation (PEO). The influence of different additives on the phase composition and topography was investigated in acidic electrolytes containing Zr(SO<sub>4</sub>)<sub>2</sub>·H<sub>2</sub>O with potentiostatically controlled PEO at different pulse frequencies. Apart from the primary intention to generate Zr enriched phases, formation and incorporation in the ceramic layer of potential antibacterial Cu and Zn species was achieved and examined by X-ray diffraction. The thickness of the oxide layer, the adhesion and the layers' composition were evaluated using FIB and SEM-EDX.</p> </abstract>

Effects of graphene nanosheets on the ceramic coatings formed on Ti6Al4V alloy drill pipe by plasma electrolytic oxidation

2019 ◽  
Vol 789 ◽  
pp. 996-1007 ◽  
Author(s):  
Wanying Liu ◽  
Carsten Blawert ◽  
Mikhail L. Zheludkevich ◽  
Yuanhua Lin ◽  
Mohd Talha ◽  
...  
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Graphene Nanosheets ◽  
Drill Pipe ◽  
Ceramic Coatings ◽  
Ti6al4v Alloy ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

scholarly journals Electrochemical Response in Biological Media of Plasma Electrolytic Oxidation Treated Additively Manufactured Ti6Al4V Alloy

2021 ◽  
Vol 6 (1) ◽  
pp. 6
Author(s):  
Hugo Mora-Sanchez ◽  
Marta Mohedano ◽  
Raul Arrabal ◽  
Endzhe Matykina
Keyword(s):  
Electrochemical Behavior ◽  
Plasma Electrolytic Oxidation ◽  
Electrochemical Impedance ◽  
Electrical Response ◽  
Ti6al4v Alloy ◽  
Future Research ◽  
Ti Alloys ◽  
Electrochemical Response ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

Innovative 3D metal additive manufacturing (AM) techniques are revolutionizing the biomedical industry, since they enable the production of porous structures and patient-customized parts of biomedical-grade materials, such as Ti alloys. Surface treatment via the plasma electrolytic oxidation (PEO) of conventionally manufactured Ti and its alloys has been proved as an outstanding approach to promote the osseointegration of implants. Henceforth, it is of increasing interest to develop PEO treatments for AM Ti alloys. The objective of the present work was to fabricate Ca and P containing thin (~3–10 μm thickness) PEO coatings on a Ti6Al4V alloy manufactured via direct metal laser sintering (DMLS), a laser powder bed fusion AM technique, and to study the electrochemical behavior of the treated specimens in a modified α-MEM solution. The electrical response of the PEO process on the AM alloy was compared to that on wrought mill-annealed Ti6Al4V sheets. The electrochemical behavior of the PEO-treated AM alloy was evaluated via potendiodynamic polarization and electrochemical impedance spectroscopy (EIS) in comparison to the non-treated AM alloy and the PEO-treated conventional counterparts. The surface degradation morphologies were evaluated by electron-optical microscopy and optical profilometry. The effect of the AM microstructure on the PEO process and the microstructure and electrochemical response of the resultant coatings are discussed with the aim to define future research directions relevant to the improvement of the corrosion resistance of AM Ti6Al4V, particularly with regard to pitting corrosion.

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