Synthesis and properties of CaTiO3-containing coating on AZ31 magnesium alloy by micro-arc oxidation

2013 ◽  
Vol 93 ◽  
pp. 427-430 ◽  
Author(s):  
Hui Tang ◽  
Fuping Wang
Keyword(s):  
Magnesium Alloy ◽  
Az31 Magnesium Alloy ◽  
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

An investigation of (NaPO3)6 effects and mechanisms during micro-arc oxidation of AZ31 magnesium alloy

2015 ◽  
Vol 266 ◽  
pp. 151-159 ◽  
Author(s):  
Haojie Ma ◽  
Dalong Li ◽  
Chen Liu ◽  
Zhiquan Huang ◽  
Donglei He ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Az31 Magnesium Alloy ◽  
Micro Arc Oxidation

In Vitro Corrosion and Antibacterial Performance of Micro-Arc Oxidation Coating on AZ31 Magnesium Alloy: Effects of Tannic Acid

2018 ◽  
Vol 165 (11) ◽  
pp. C821-C829 ◽  
Author(s):  
Lan-Yue Cui ◽  
Han-Peng Liu ◽  
Kui Xue ◽  
Wen-Le Zhang ◽  
Rong-Chang Zeng ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Tannic Acid ◽  
Az31 Magnesium Alloy ◽  
Antibacterial Performance ◽  
Micro Arc Oxidation

Influence of Current Density on Structure and Performance of Micro-Arc Oxidation Coatings on AZ31 Magnesium Alloy

2011 ◽  
Vol 189-193 ◽  
pp. 562-566 ◽  
Author(s):  
Mei Yang ◽  
Zheng Lei ◽  
Xiao Hong Wang ◽  
Ping Wang ◽  
Jun Yang
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Current Density ◽  
Adhesion Force ◽  
Water Solution ◽  
Corrosion Current ◽  
Az31 Magnesium Alloy ◽  
Positive Direction ◽  
Micro Arc Oxidation ◽  
And Performance

In the Na2SiO3-NaOH-C3H8O3electrolyte system,the micro-arc oxidation (MAO) coatings were prepared on AZ31 magnesium alloy when J=2A/dm2,4A/dm2,8A/dm2and 12A/dm2.The relations of current density with microstructure and performance of the MAO coatings on AZ31 were studied by means of SEM, XRD, HVS-1000 micro Vicker, MFT-4000 Scratch Tester and electro-chemical method. The results show that when current density increases,the thickness,growth rate,micro-hardness and the contents of MgO and Mg2SiO4of MAO coatings increase,but the adhesion force between MAO coating and substrate decreases, the millipores and the roughness become larger.The corrosion resistance of MAO coatings increases firstly and then decreases with the increasing current density.The corrosion resistance of MAO coating,which J=6 A/dm2,is the best in 4.5% NaCl water solution,whose corrosion current density reduces by 3 orders of magnitude, and corrosion potential increases 1078mV in positive direction.

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