Comparison of the in vitro corrosion behavior of biodegradable pure Zn in SBF, 0.9% NaCl, and DMEM

2021 ◽  
Author(s):  
Xinglong Zhu ◽  
Pushan Guo ◽  
Lijing Yang ◽  
Cheng Xu ◽  
Fang Geng ◽  
...  
Keyword(s):  
Corrosion Behavior

Sem Studies of Co-Cr-Mo Surgical Implant Alloy Corrosion Behavior

1982 ◽  
Vol 40 ◽  
pp. 520-521
Author(s):  
Ann Chidester Van Orden ◽  
John L. Chidester ◽  
Anna C. Fraker ◽  
Pei Sung
Keyword(s):  
Electron Microscopy ◽  
Corrosion Behavior ◽  
Anodic Polarization ◽  
Saline Solution ◽  
Saturated Calomel Electrode ◽  
Physiological Saline ◽  
X Ray ◽  
Physiological Saline Solution ◽  
Scanning Electron

The influence of small variations in the composition on the corrosion behavior of Co-Cr-Mo alloys has been studied using scanning electron microscopy (SEM), energy dispersive x-ray analysis (EDX), and electrochemical measurements. SEM and EDX data were correlated with data from in vitro corrosion measurements involving repassivation and also potentiostatic anodic polarization measurements. Specimens studied included the four alloys shown in Table 1. Corrosion tests were conducted in Hanks' physiological saline solution which has a pH of 7.4 and was held at a temperature of 37°C. Specimens were mechanically polished to a surface finish with 0.05 µm A1203, then exposed to the solution and anodically polarized at a rate of 0.006 v/min. All voltages were measured vs. the saturated calomel electrode (s.c.e.).. Specimens had breakdown potentials near 0.47V vs. s.c.e.

In vitro corrosion behavior and cytotoxicity property of magnesium matrix composite with chitosan coating

2015 ◽  
Vol 22 (3) ◽  
pp. 829-834 ◽  
Author(s):  
Yi-long Dai ◽  
Kun Yu ◽  
Liang-jian Chen ◽  
Chang Chen ◽  
Xue-yan Qiao ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Matrix Composite ◽  
Magnesium Matrix Composite ◽  
Magnesium Matrix ◽  
Chitosan Coating

Mechanical properties, corrosion behavior and in-vitro bioactivity of nanostructured Pd/PdO coating on Ti–6Al–7Nb implant

2016 ◽  
Vol 103 ◽  
pp. 10-24 ◽  
Author(s):  
A.R. Rafieerad ◽  
A.R. Bushroa ◽  
B. Nasiri-Tabrizi ◽  
J. Vadivelu ◽  
S. Baradaran ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Behavior ◽  
In Vitro Bioactivity

scholarly journals Fluoride Treatment and In Vitro Corrosion Behavior of Mg-Nd-Y-Zn-Zr Alloys Type

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 566
Author(s):  
Pham Hong Quan ◽  
Iulian Antoniac ◽  
Florin Miculescu ◽  
Aurora Antoniac ◽  
Veronica Manescu (Păltânea) ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Orthopedic Implants ◽  
Immersion Test ◽  
Nacl Solution ◽  
Fluoride Ions ◽  
Fluoride Treatment ◽  
Cardiovascular Stents ◽  
Before And After

Fluoride conversion coatings on Mg present many advantages, among which one can find the reduction of the corrosion rate under “in vivo” or “in vitro” conditions and the promotion of the calcium phosphate deposition. Moreover, the fluoride ions released from MgF2 do not present cytotoxic effects and inhibit the biofilm formation, and thus these treated alloys are very suitable for cardiovascular stents and biodegradable orthopedic implants. In this paper, the biodegradation behavior of four new magnesium biodegradable alloys that have been developed in the laboratory conditions, before and after surface modifications by fluoride conversion (and sandblasting) coatings, are analyzed. We performed structural and surface analysis (XRD, SEM, contact angle) before and after applying different surface treatments. Furthermore, we studied the electrochemical behavior and biodegradation of all experimental samples after immersion test performed in NaCl solution. For a better evaluation, we also used LM and SEM for evaluation of the corroded samples after immersion test. The results showed an improved corrosion resistance for HF treated alloy in the NaCl solution. The chemical composition, uniformity, thickness and stability of the layers generated on the surface of the alloys significantly influence their corrosion behavior. Our study reveals that HF treatment is a beneficial way to improve the biofunctional properties required for the studied magnesium alloys to be used as biomaterials for manufacturing the orthopedic implants.

Effects of hydroxyapatite content on mechanical properties and in-vitro corrosion behavior of ZK60/HA composites

2020 ◽  
Vol 111 (8) ◽  
pp. 621-631
Author(s):  
Jie Teng ◽  
Zili Xu ◽  
Jinlong Su ◽  
Yuan Li
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Electrochemical Measurement ◽  
X Ray Diffraction ◽  
Corrosion Morphology ◽  
Hardness Tests ◽  
Zk60 Alloy ◽  
Immersion Testing

Abstract In this study, hydroxyapatite-reinforced ZK60 Mg alloybased composites were fabricated via a powder metallurgy route. The mechanical properties of these composites were studied by compressive tests and hardness tests. The in-vitro corrosion behavior was also investigated using immersion testing and electrochemical measurement. The influence of hydroxyapatite content on the mechanical properties and invitro corrosion behavior was evaluated. The microstructure and corrosion morphology were characterized by means of X-ray diffraction, optical and scanning electron microscopy. The results showed that the composite materials with 10 wt.% hydroxyapatite exhibited a better combination of mechanical strength and corrosion resistance. Compared with ZK60 alloy, the addition of 10 wt.% hydroxyapatite resulted in an increase in corrosion resistance by 38.6%.

Comparison of the Corrosion Behavior of Coated and Uncoated Magnesium Alloys in an In Vitro Corrosion Environment

2011 ◽  
Vol 13 (9) ◽  
pp. B313-B323 ◽  
Author(s):  
Jan-Marten Seitz ◽  
Kelly Collier ◽  
Eric Wulf ◽  
Dirk Bormann ◽  
Friedrich-Wilhelm Bach
Keyword(s):  
Magnesium Alloys ◽  
Corrosion Behavior

In vitro corrosion behavior of bioceramic, metallic, and bioceramic–metallic coated stainless steel dental implants

2003 ◽  
Vol 19 (3) ◽  
pp. 188-198 ◽  
Author(s):  
M.H Fathi ◽  
M Salehi ◽  
A Saatchi ◽  
V Mortazavi ◽  
S.B Moosavi
Keyword(s):  
Stainless Steel ◽  
Dental Implants ◽  
Corrosion Behavior
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