scholarly journals Enhancement of Titanium Alloy Corrosion Resistance via Anodic Oxidation Treatment

2018 ◽  
pp. 3888-3896 ◽  
Author(s):  
Hong Jiang ◽  
Keyword(s):  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Anodic Oxidation ◽  
Oxidation Treatment ◽  
Anodic Oxidation Treatment

The Effect of Potential on Surface Characteristic and Corrosion Resistance of Commercial Pure Titanium Processed by Anodic Oxidation Treatment

2018 ◽  
Vol 941 ◽  
pp. 1692-1697
Author(s):  
Tian Lin Fu ◽  
Shan Liu ◽  
Yan Gao ◽  
Zhao Lin Zhan
Keyword(s):  
Corrosion Resistance ◽  
Anodic Oxidation ◽  
Photoelectron Spectroscopy ◽  
Pure Titanium ◽  
Surface Characteristic ◽  
Electrode Impedance ◽  
Oxidation Treatment ◽  
Anodic Potential ◽  
Commercial Pure Titanium ◽  
Anodic Oxidation Treatment

Anodic oxidation treatment of commercial pure titanium was carried out at the voltage of 30, 50 V in 0.5 M H2SO4 solution so as to obtain the effects of the anodic potential on the surface characteristic and corrosion resistance of passive film. The morphology and corrosion resistance of the treated samples were investigated using scanning electron microscopy (SEM), atomic force microscope (AFM), X-ray photoelectron spectroscopy (XPS), potentiodynamic polarization curves and electrode impedance spectroscopy (EIS). The results show that increasing anodic potential can significantly enhance the corrosion resistance of commercial pure titanium.

Corrosion Resistance and Blood Compatibility of AZ31B Mg Alloy with Anodic Oxidation/TiO2 Composite Film

2015 ◽  
Vol 23 ◽  
pp. 1-8 ◽  
Author(s):  
Hong Hong Shao ◽  
Zi Hong Zhu ◽  
Xue Li Liu
Keyword(s):  
Corrosion Resistance ◽  
Composite Film ◽  
Anodic Oxidation ◽  
Blood Compatibility ◽  
Corrosion Current ◽  
Mg Alloy ◽  
Clotting Time ◽  
Oxidation Treatment ◽  
Anodic Oxidation Treatment ◽  
The One

The anodic oxidation/TiO2 composite film was prepared on the surface of AZ31B Mg alloy by DC magnetron sputtering. The corrosion resistance and blood compatibility of the film were systematically studied by electrochemical, dynamic clotting time and platelet adhesion test. The results shows that the corrosion current of AZ31B Mg alloy was 6.409×10-8A/cm2 after anodic oxidation treatment, which has decreased 4 orders of magnitude compared to the untreated samples and the corrosion resistance is improved greatly. The clotting time of anodic oxidation/TiO2 film is about 53 min, which has increased 1.3 times compared to anodic oxidation film (40min). Platelets adhesion to anodic oxidation/TiO2 film are less than the one adhesion to anodic oxidation film, and there are no pseudopodia and aggregation, which indicate that the blood compatibility of anodic oxidation/TiO2 film is better than anodic oxidation film.

Research Progress on Organic Additives in the Anodic Oxidation Process of Magnesium and its Alloys

2013 ◽  
Vol 341-342 ◽  
pp. 187-190
Author(s):  
Wei Zhang
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Anodic Oxidation ◽  
Oxidation Process ◽  
Physical And Mechanical Properties ◽  
Research Progress ◽  
Organic Additives ◽  
Oxidation Treatment ◽  
Anodic Oxidation Treatment ◽  
Anodic Oxidation Process

Magnesium and its alloys have excellent physical and mechanical properties for a number of applications. Unfortunately, magnesium and its alloys are highly susceptible to corrosion, which greatly restricts their further application. Anodic oxidation treatment is an effective method to improve the corrosion resistance of magnesium and its alloys. In the anodic oxidation process, organic additives have significantly effects on the performance of the oxide film. This paper reviews the research progress on organic additives, in order to provide some references for the research of the electrolyte in the anodic oxidation process of magnesium and its alloys.

Investigation of the Preparation of Anodized Nanoporous Alumina Array

2014 ◽  
Vol 887-888 ◽  
pp. 766-769 ◽  
Author(s):  
Huey Ling Chang ◽  
Chih Ming Chen ◽  
Chin Huang Sun ◽  
Jin Shyong Lin
Keyword(s):  
Anodic Oxidation ◽  
Self Assembly ◽  
Aluminum Surface ◽  
Nanostructured Film ◽  
Oxidation Treatment ◽  
Anodic Aluminum ◽  
Nanoporous Template ◽  
Anodic Oxidation Treatment ◽  
Stable Control

This study produced a regularly arranged membrane, called anodic aluminum oxide (referred AAO), by mean of anodic oxidation treatment. The structure of AAO can be molecular self-assembly and its pore size is consistent. Also, the manufacturing process cost is low. These properties make the AAO be a nanotemplate material. This study further created a high quality of nanostructured film by electrochemical mould with the design of electrolyzer. In addition, a uniform nanothin film was grown on the aluminum surface in the stable control of current and temperature according to the conditions of different anode treatment. This film can form a nanopore array which the diameter can be controlled the size ranging from 15 nm to 400 nm. As results, the study can produce nanoporous template for various aperture by mean of anodic oxidation.

Preparation of Bioactive Tantalum Metal via Anodic Oxidation Treatment

2007 ◽  
pp. 637-640
Author(s):  
Bang Cheng Yang ◽  
L. Gan ◽  
Zhen Sheng Li ◽  
Y. Huang ◽  
Yang Qu ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Oxidation Treatment ◽  
Tantalum Metal ◽  
Anodic Oxidation Treatment

Evaluation of Bioabsorbable Mg–Mn Alloy with Anodic Oxidation Treatment

2020 ◽  
Vol 20 (9) ◽  
pp. 5625-5628
Author(s):  
Seungyun Lee ◽  
Doyun Lee ◽  
Kyungmin Lee ◽  
Chan Park ◽  
Hyunphil Lim ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Cell Viability ◽  
Magnesium Alloys ◽  
Anodic Oxidation ◽  
Mechanical Test ◽  
Hardness Test ◽  
Hydrogen Gas ◽  
Oxidation Treatment ◽  
Gas Formation ◽  
Anodic Oxidation Treatment

Magnesium alloys as biodegradable materials have been examined that may replace bone screws and plates in recent studies. But the velocity control of magnesium alloy is very difficult. Until now, the magnesium alloys degrade very fast, thus it couldn’t maintain the function in clinical field. Thus the purpose of this study is to evaluate the degradability of anodized magnesium alloy for control the velocity. For this experiment, a Mg–xMn (x = 0, 0.5, 1 wt%) binary alloy was cast in argon gas (99.99%) atmosphere. The specimens of the surface treatment group were anodized for 15 minutes at a voltage of 120 V at room temperature using calcium gluconate, sodium hexametaphosphate, and sodium hydroxide electrolyte. For the mechanical test, SEM, roughness test, hardness test were examined. The degradation test was conducted to measure the hydrogen gas formation volume. For biologic test, cell viability were tested. After anodic oxidation treatment, the surface showed the crater formation, the size of craters were about 200~300 nm. Among nonanodized group, the Mg–0.5Mn showed the highest Vickers hardness and cell viability. However for biodegradability test, Mg–1Mn showed the lowest the hydrogen gas formation. For anodic oxidation treatment, anodic oxidation treatment makes rougher surface, higher hardness, good cell response and lower degradation rate. Overall, anodized Mg–1Mn showed the possibility for clinical application in bone screw and bone plate.

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