Corrosion Behavior of P-Coated Biomedical Pure Magnesium

2015 ◽  
Vol 814 ◽  
pp. 389-391 ◽  
Author(s):  
Shi Jie Zhou ◽  
Jun Feng Li ◽  
Jian Ping Long ◽  
Han Qiu Du
Keyword(s):  
Corrosion Resistance ◽  
Simulated Body Fluid ◽  
Corrosion Behavior ◽  
Electrochemical Behavior ◽  
Body Fluid ◽  
Biomedical Application ◽  
Chemical Conversion ◽  
Hard Tissue ◽  
Degradation Rates ◽  
Morphology And Structure

Magnesium and its alloys are potential materials in biodegradable hard tissue implants. However, the fast degradation rates in a physiological environment constitute the main limitation for biomedical application. In this work, the NH4H2PO4- KMnO4chemical conversion treatment on the surface was used. The morphology and structure of the coating was observed and analyzed by SEM. The electrochemical behavior in Hanks' simulated body fluid of the coated magnesium was systematically investigated. Our results disclose that the corrosion resistance of the P-coated magnesium is significantly improved.

Corrosion Behavior of Porous Mg Alloy in Simulated Body Fluid

2015 ◽  
Vol 754-755 ◽  
pp. 1093-1097
Author(s):  
Husna Z. Nurul ◽  
Chang Chuan Lee ◽  
Siti Norbahiyah ◽  
A.B. Sanuddin ◽  
M.Z. Zamzuri
Keyword(s):  
Simulated Body Fluid ◽  
Corrosion Behavior ◽  
Body Fluid ◽  
Biomedical Applications ◽  
Degradation Rate ◽  
Ammonium Bicarbonate ◽  
Mg Alloy ◽  
High Demand ◽  
Degradation Rates ◽  
Immersion Period

Magnesium (Mg) alloy possess a high demand in biomedical applications due to their biocompatibility and biodegradability. However the main limitation for Mg alloy is their fast degradation rates in physiological environment. This paper reports the preparation of porous Mg alloy through powder metallurgy technique by using ammonium bicarbonate (NH4HCO3) as space holder material and hexane as solvent. The corrosion behavior and degradation rate of porous Mg alloy was measured after 24h, 96h and 168h respectively of immersion in simulated body fluid (SBF) with compact Mg alloy as control. The results reported that degradation rate increased with increasing immersion period, yet the compact Mg alloy shows better degradation rate than porous Mg alloy. Moreover, the pH of SBF changed proportional to immersion period and stabilized after 96h of immersion.

Investigation of corrosion behavior of polypyrrole-coated Ti using dynamic electrochemical impedance spectroscopy (DEIS)

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 80275-80285 ◽  
Author(s):  
Bhavana Rikhari ◽  
S. Pugal Mani ◽  
N. Rajendran
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Simulated Body Fluid ◽  
Corrosion Behavior ◽  
Body Fluid ◽  
Electrochemical Impedance ◽  
Sbf Solution ◽  
Dynamic Electrochemical Impedance Spectroscopy

In the present work, dynamic electrochemical impedance spectroscopy (DEIS) was used to investigate the corrosion behavior of polypyrrole (PPy)-coated titanium (Ti) in simulated body fluid (SBF) solution.

Corrosion behavior of surface-modified titanium in a simulated body fluid

2011 ◽  
Vol 46 (18) ◽  
pp. 5931-5939 ◽  
Author(s):  
Julia van Drunen ◽  
Baodong Zhao ◽  
Gregory Jerkiewicz
Keyword(s):  
Simulated Body Fluid ◽  
Corrosion Behavior ◽  
Body Fluid ◽  
Surface Modified

scholarly journals Corrosion study of metallic biomaterials in simulated body fluid

10.30544/384 ◽  
2011 ◽  
Vol 17 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Hamid Reza Asgari Bidhendi ◽  
Majid Pouranvari
Keyword(s):  
Stainless Steel ◽  
Simulated Body Fluid ◽  
Corrosion Behavior ◽  
Body Fluid ◽  
Pure Titanium ◽  
Localized Corrosion ◽  
Commercially Pure Titanium ◽  
Corrosion Properties ◽  
Cyclic Polarization ◽  
Cp Ti

Titanium alloys and stainless steel 316L are still the most widely used biomaterials for implants despite emerging new materials for this application. There is still someambiguity in corrosion behavior of metals in simulated body fluid (SBF). This paper aims at investigating the corrosion behavior of commercially pure titanium (CP-Ti), Ti–6Al–4V and 316LVM stainless steel (316LVM) in SBF (Hank’s solution) at37 ºC using the cyclic polarization test. Corrosion behavior was described in terms of breakdown potential, the potential and rate ofcorrosion, localized corrosion resistance, andbreakdown repassivation. The effects of anodizing on CP-Ti samples and the passivation on the 316LVM were studied in detail. It was shown that CP-Ti exhibited superior corrosion properties compared to Ti–6Al–4V and 316LVM.

Evaluation of the Bioactivity Behavior of a 48 Wt %SiO2 Bioglass through Experiments in Simulated Body Fluid

2012 ◽  
Vol 727-728 ◽  
pp. 1238-1242 ◽  
Author(s):  
Roger Borges ◽  
Antônio Carlos da Silva ◽  
Juliana Marchi
Keyword(s):  
Corrosion Resistance ◽  
Surface Layer ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Glass Network ◽  
In Vitro Experiments ◽  
High Corrosion Resistance ◽  
Before And After ◽  
O 19

Among bioceramics materials, bioglasses which exhibits either a bioactive or resorbable behavior has been studied for many applications, such as bone substitutive and regeneration. When in contact with body fluid, the bioglasses can induce the formation of a hydroxyapatite surface layer. In this paper, we studied the bioactivity of a bioglass containing 48 wt %SiO2, 27 wt% Na2O, 19 wt % CaO and 6 wt %P2O5. After fusion and annealing, the samples were immersed in SBF for different periods, up to 14 days. The samples were characterized through XRD, DRIFT and SEM before and after bioactivity experiments. The overall results suggest the formation of a surface layer of consisting of hydroxyapatite, which was crystallized within seven days after in vitro experiments, leading to a suitable bioactivity. Moreover, the samples showed a glass network with high cohesion due to calcium addition, leading to materials with high corrosion resistance.

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