Characterization of a Biomedical Titanium Alloy Using Various Surface Modifications to Enhance its Corrosion Resistance and Biocompatibility

Ti6Al4V titanium alloy has been characterized for its prospective applications as an implant material. The surface treatments performed have brought about enhanced surface properties of these alloys and have produced corrosion resistant oxide films with increased bioactive properties. Characterization of the alloy surface has revealed the presence of a duplex oxide structure over the surface treated specimens, composed of an inner barrier layer and an outer porous layer. The inner barrier layer has imparted a high corrosion resistance to the alloy while the outer porous layer which is responsible for the increased roughness of the surface treated alloy specimens, has encouraged formation and deposition of apatite into the oxide pores and further resulted in an increase in cell adhesion over the alloy surface. Anodization and heat treatment procedures have proved advantageous to titanium alloys in terms of producing oxide films that can offer these alloys an improved biological performance.

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Influence of micro-nano surface texture on the hydrophobicity and corrosion resistance of a Ti6Al4V alloy surface

Anti-Corrosion Methods and Materials ◽

10.1108/acmm-05-2021-2488 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Bochun Xu ◽

Nan Zou ◽

Yunhao Jia ◽

Chao Feng ◽

Jiajia Bu ◽

...

Keyword(s):

Corrosion Resistance ◽

Titanium Alloy ◽

Surface Texture ◽

Surface Hydrophobicity ◽

Contact Angle Measurement ◽

Angle Measurement ◽

Alloy Surface ◽

Measurement Instruments ◽

Content Type

Purpose The purpose of this paper is to study the effect of micro-nano surface texture on the corrosion resistance of a titanium alloy and investigate the correlation between corrosion resistance and hydrophobicity. Design/methodology/approach The surface of the Ti6Al4V alloy was modified by laser processing and anodizing to fabricate micro-pits, nanotubes and micro-nano surface textures. Afterward, the surface morphology, hydrophobicity and polarization curve of the samples were analyzed by cold field scanning electron microscopy, contact angle measurement instruments and a multi-channel electrochemical workstation. Findings The micro-nano surface texture can enhance the hydrophobicity of the Ti6Al4V surface, which may lead to better drag reduction to ease the friction of implants in vivo. Nevertheless, no correlation existed between surface hydrophobicity and corrosion resistance; the corrosion resistance of samples with nanotubes and high-density samples with micro-nano surface texture was extremely enhanced, indicating the similar corrosion resistance of the two. Research limitations/implications The mechanism of micro-dimples on the corrosion resistance of the micro-nano surface texture was not studied. Practical implications The density of micro-pits needs to be optimized to guarantee excellent corrosion resistance in the design of the micro-nano surface texture; otherwise, it will not fulfill the requirement of surface modification. Originality/value The influence of the micro-nano surface texture on the corrosion resistance, as well as the relationship between hydrophobicity and corrosion resistance of the titanium alloy surface, were systematically investigated for the first time. These conclusions offer new knowledge.

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EIS characterization of sealed anodic oxide films on titanium alloy Ti-10V-2Fe-3Al

Journal of Wuhan University of Technology-Mater Sci Ed ◽

10.1007/s11595-016-1416-6 ◽

2016 ◽

Vol 31 (3) ◽

pp. 599-605 ◽

Cited By ~ 4

Author(s):

Jianhua Liu ◽

Liang Wu ◽

Mei Yu ◽

Songmei Li ◽

Guolong Wu ◽

...

Keyword(s):

Titanium Alloy ◽

Oxide Films ◽

Anodic Oxide ◽

Anodic Oxide Films

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Characterization of hot deformation behavior of a biomedical titanium alloy TLM

Materials Science and Engineering A ◽

10.1016/j.msea.2014.01.005 ◽

2014 ◽

Vol 598 ◽

pp. 236-243 ◽

Cited By ~ 18

Author(s):

X.F. Bai ◽

Y.Q. Zhao ◽

W.D. Zeng ◽

Z.Q. Jia ◽

Y.S. Zhang

Keyword(s):

Titanium Alloy ◽

Hot Deformation ◽

Deformation Behavior ◽

Hot Deformation Behavior ◽

Biomedical Titanium Alloy

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Preparation and characterization of superhydrophobic composite coatings on a magnesium–lithium alloy

RSC Advances ◽

10.1039/c6ra13194h ◽

2016 ◽

Vol 6 (93) ◽

pp. 90587-90596 ◽

Cited By ~ 14

Author(s):

Zhijun Li ◽

Yi Yuan

Keyword(s):

Corrosion Resistance ◽

Composite Coating ◽

Composite Coatings ◽

Alloy Surface ◽

Water Repellent ◽

Lithium Alloy

We report a superhydrophobic organophosphonate composite coating on a magnesium–lithium alloy surface, which exhibits excellent water-repellent and corrosion resistance properties.

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Characterization of indium-tin-oxide films with improved corrosion resistance

Surface and Interface Analysis ◽

10.1002/sia.2010 ◽

2005 ◽

Vol 37 (4) ◽

pp. 385-392 ◽

Cited By ~ 13

Author(s):

Stephen W. Gaarenstroom ◽

Michael P. Balogh ◽

Maria C. Militello ◽

Richard A. Waldo ◽

Curtis A. Wong ◽

...

Keyword(s):

Corrosion Resistance ◽

Tin Oxide ◽

Indium Tin Oxide ◽

Oxide Films ◽

Tin Oxide Films

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Development of Oxygen-Rich Supply System Applied in Biomedical Titanium Alloy Cutting

Materials Science Forum ◽

10.4028/www.scientific.net/msf.770.410 ◽

2013 ◽

Vol 770 ◽

pp. 410-413

Author(s):

Rui Zhang ◽

Yi Wan ◽

Xing Ai ◽

Gan Wang ◽

Bo Men

Keyword(s):

Titanium Alloy ◽

Oxide Film ◽

Supply System ◽

Alloy Surface ◽

Mixed Gas ◽

Control Logic ◽

Logic Control ◽

Programmable Logic Control ◽

Biomedical Titanium Alloy ◽

Logic System

Oxide film of biomedical titanium alloy surface is crucial to implants, which plays an important role in their biocompatibility with human body. An oxygen-rich supply system used in machining titanium alloy was developed in this paper, which was able to improve oxide film generation. Pressure and ratio of mixed gas were controlled precisely by detection and programmable logic control logic system. Experimental results revealed that low-pressure oxygen-rich atmosphere greatly decrease the oxidation reaction condition between titanium alloy surface and oxygen. The thickness of the oxide film in oxygen-rich atmosphere was much thicker than that in natural environment.

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Electrochemical Characterization of a New Biomedical Titanium Alloy Behavior

ECS Meeting Abstracts ◽

10.1149/ma2007-02/15/909 ◽

2007 ◽

Keyword(s):

Titanium Alloy ◽

Electrochemical Characterization ◽

Biomedical Titanium Alloy

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Fracture Surface of a Ti-6Al-4V Specimen with EDM Notches Tested under Quasi-Static Loading in Methanol

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.827.79 ◽

2019 ◽

Vol 827 ◽

pp. 79-84

Author(s):

Sergio Baragetti ◽

Emanuele Borzini ◽

Emanuele Vincenzo Arcieri

Keyword(s):

Corrosion Resistance ◽

Titanium Alloy ◽

Fracture Surface ◽

Static Loading ◽

High Strength ◽

Structural Mechanics ◽

Surface Oxide ◽

Mass Ratio ◽

Corrosive Media

Ti-6Al-4V titanium alloy is a high strength-to-mass ratio material common in a lot of engineering fields. Its surface oxide can guarantee the protection of the substrate from various corrosive media. Unluckily, this film can be scratched in presence of mechanical and chemical loads and for this reason the corrosion resistance can decrease. The Structural Mechanics Laboratory (SM-Lab) is carrying out a characterization of the alloy in different environments under quasi-static loading. In this paper, a summary of the outcomes of the investigation and the description of the fracture surface of a specimen with EDM notches quasi-statically tested in methanol is provided

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Study on Corrosion Resistance and Cytotoxicity of the Fluoropolymer Thin Films on Titanium Alloy Surface

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.658.73 ◽

2013 ◽

Vol 658 ◽

pp. 73-79

Author(s):

Guo Ting Zhao ◽

Qian Zheng ◽

Yu Ting Du ◽

Bin Liu ◽

Jun Yan Zhang

Keyword(s):

Contact Angle ◽

Corrosion Resistance ◽

Titanium Alloy ◽

Polymer Film ◽

Electrochemical Corrosion ◽

Alloy Surface ◽

Cell Toxicity ◽

Surface Contact ◽

Surface Contact Angle ◽

Experimental Group

The objective was to investigate the corrosion resistance performance of Ti-6Al-4V alloy surface containing fluorine polymer film and polymer film to cell toxicity. Be evaluating the application prospect in modified method of medical titanium alloy. Using spin coating technique and thermal cross-linking method to prepare fluorine polymer film on Ti-6Al-4V alloy surface, and then characterized by XPS and surface contact angle. By electrochemical corrosion method and the cytotoxicity experiment were to evaluate corrosion resistance and cytotoxicity of the fluorine polymer film. The results show the XPS of the experimental group were stronger spectrum peaks of element C, F; but the spectrum peaks of element Ti, Al were not observed, the surface contact angle in experimental group increased from 57.7° to 97.1°, compared with the control group. The results of electrochemical corrosion experiment showed that the corrosion potential increased from -0.82 V to -0.062 V, and the corrosion current density of the experimental group reduced from 1.301 × 10-5 A • cm-2 to 1.939 × 10-7 A • cm-2, compared with Ti-6Al-4V alloy. Meanwhile the cytotoxicity test showed that RGR values of the experimental group were greater than 90% at different time points, and RGR values were higher than 100% at 2 and 4 days. In conclusion, the Ti-6Al-4V alloy surface with the preparation of fluorine polymer film has better corrosion resistance and no cell toxicity. It has well prospect in clinical application.

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