Micro-arc oxidation and electrophoretic deposition of nano-grain merwinite (Ca3 MgSi2 O8 ) surface coating on magnesium alloy as biodegradable metallic implant

2014 ◽  
Vol 46 (6) ◽  
pp. 387-392 ◽  
Author(s):  
Mehdi Razavi ◽  
Mohammadhossein Fathi ◽  
Omid Savabi ◽  
Daryoosh Vashaee ◽  
Lobat Tayebi
Keyword(s):  
Magnesium Alloy ◽  
Electrophoretic Deposition ◽  
Surface Coating ◽  
Metallic Implant ◽  
Micro Arc Oxidation

Na2CO3-induced Gas Evolution Reaction and Morphology Modulation on Magnesium Alloy during Micro-arc Oxidation

2011 ◽  
Vol 26 (7) ◽  
pp. 721-725
Author(s):  
Xiao-Bo WANG ◽  
Xiu-Bo TIAN ◽  
Chun-Zhi GONG ◽  
Shi-Qin YANG
Keyword(s):  
Magnesium Alloy ◽  
Gas Evolution ◽  
Micro Arc Oxidation

scholarly journals Biocoatings synthesized on magnesium alloy in system Ca3(PO4)2–CaSiO3 by micro-arc oxidation method

2021 ◽  
Vol 1954 (1) ◽  
pp. 012037
Author(s):  
M B Sedelnikova ◽  
A V Ugodchikova ◽  
T V Tolkacheva ◽  
Yu P Sharkeev ◽  
O V Kazmina ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Oxidation Method ◽  
Micro Arc Oxidation

A Preliminary Study of Anodization and Electroless Ni–P Plating on AZ80 Magnesium Alloy

2011 ◽  
Vol 299-300 ◽  
pp. 663-666 ◽  
Author(s):  
Ping Shi ◽  
Xue Dong Han
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Weight Ratio ◽  
High Strength ◽  
Surface Modifications ◽  
Atomic Ratio ◽  
Az80 Magnesium Alloy ◽  
Micro Arc Oxidation ◽  
Preliminary Study ◽  
Electroless Ni

Magnesium alloys are being used as structural components in industry because of their high strength to weight ratio. But their high electrochemical activity and poor corrosion resistance limited their applications. Therefore, surface modifications are needed for protection purpose. This paper studied the anodic micro-arc oxidation and electroless Ni-P plating surface modifications on AZ80 magnesium alloy. The SEM, XRD and EDS were used to characterize the surface coating. It shows that a micro-porous MgO layer with the pores size 5 – 20 μm was fabricated on the bare magnesium alloy. The nodule Ni-P deposition could be prepared on the out layer of MgO with Ni/P atomic ratio being 1.4. The pores in MgO layer could be sealed by the following Ni-P deposition. Therefore the corrosion resistance of the magnesium alloy could be further improved.

scholarly journals The effect of pulse frequency on the electrochemical properties of micro arc oxidation coatings formed on magnesium alloy

2013 ◽  
Vol 1 (4) ◽  
pp. 318-322 ◽  
Author(s):  
Xianghua Song ◽  
Jianhong Lu ◽  
Xijiang Yin ◽  
Jianping Jiang ◽  
Jing Wang
Keyword(s):  
Magnesium Alloy ◽  
Electrochemical Properties ◽  
Pulse Frequency ◽  
Micro Arc Oxidation

scholarly journals Preparation and Characterization of a Sol–Gel AHEC Pore-Sealing Film Prepared on Micro Arc Oxidized AZ31 Magnesium Alloy

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 784
Author(s):  
Longlong Zhang ◽  
Yuanzhi Wu ◽  
Tian Zeng ◽  
Yu Wei ◽  
Guorui Zhang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Sol Gel ◽  
Oxide Coating ◽  
Az31 Magnesium Alloy ◽  
Hydroxyethyl Cellulose ◽  
Gel Spinning ◽  
Test Analysis ◽  
Pore Sealing ◽  
Micro Arc Oxidation

The purpose of this study was to improve the cellular compatibility and corrosion resistance of AZ31 magnesium alloy and to prepare a biodegradable medical material. An aminated hydroxyethyl cellulose (AHEC) coating was successfully prepared on the surface of a micro-arc oxide +AZ31 magnesium alloy by sol–gel spinning. The pores of the micro-arc oxide coating were sealed. A polarization potential test analysis showed that compared to the single micro-arc oxidation coating, the coating after sealing with AHEC significantly improved the corrosion resistance of the AZ31 magnesium alloy and reduced its degradation rate in simulated body fluid (SBF). The CCK-8 method and cell morphology experiments showed that the AHEC + MAO coating prepared on the AZ31 magnesium alloy had good cytocompatibility and bioactivity.

Local corrosion behavior and model of micro-arc oxidation HA coating on AZ31 magnesium alloy

2017 ◽  
Vol 331 ◽  
pp. 179-188 ◽  
Author(s):  
Huijuan Ma ◽  
Yanhong Gu ◽  
Shujing Liu ◽  
Juntie Che ◽  
Dawei Yang
Keyword(s):  
Magnesium Alloy ◽  
Corrosion Behavior ◽  
Local Corrosion ◽  
Az31 Magnesium Alloy ◽  
Ha Coating ◽  
Micro Arc Oxidation
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