Biodegradation behavior of micro-arc oxidized AZ31 magnesium alloys formed in two different electrolytes
Source abstract
Abstract
Abstract Degradation behavior of coated magnesium alloys is among most prominent factors for their biomedical applications. In this study, bio-corrosion behavior of micro-arc oxidized magnesium AZ31 alloys formed in silicate and phosphate baths was investigated in r-SBF medium. For this purpose polarization behavior and open circuit profile of the coated samples were achieved by electrochemical and immersion tests, respectively. Moreover, the morphology and composition of the coatings were evaluated before and after immersion test using scanning electron microscopy, X-ray diffraction and energy dispersive spectroscopy. The results showed that the phosphate film had better corrosion resistance and greater thickness than silicate film and, in turn, the lesser degradability in SBF solution, so that Ca2+ and PO43− containing compounds were more abundant on silicate film than phosphate film. Moreover phosphate film had greater surface roughness and lesser hydrophilic nature.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (44)
Show source-provided references
1. Investigation of plasma electrolytic oxidation process on AZ91D magnesium alloy10.1016/j.cap.2007.12.007 ↗
2. Formation of micro-arc oxidation coatings on AZ91HP magnesium alloys10.1016/j.corsci.2009.08.009 ↗
3. Magnesium properties— applications — potential10.1016/S0921-5093(00)01351-4 ↗
4. Structure and mechanical properties of magnesium alloy treated by micro-arc discharge oxidation using direct current and high-frequency bipolar pulsing modes10.1016/j.msea.2006.07.059 ↗
5. A review on magnesium alloys as biodegradable materials
6. Magnesium and its alloys as orthopedic biomaterials: a review10.1016/j.biomaterials.2005.10.003 ↗
7. Research on an Mg–Zn alloy as a degradable biomaterial10.1016/j.actbio.2009.06.028 ↗
8. Corrosion mechanism applicable to biodegradable magnesium implants10.1016/j.mseb.2010.12.017 ↗
9. In vitro and in vivo corrosion measurements of magnesium alloys10.1016/j.biomaterials.2005.07.037 ↗
10. In vitro degradation, hemolysis and MC3T3-E1 cell adhesion of biodegradable Mg–Zn alloy10.1016/j.msec.2009.03.001 ↗
11. Growth characteristics and corrosion resistance of micro-arc oxidation coating on pure magnesium for biomedical applications10.1016/j.corsci.2010.03.008 ↗
12. Biodegradable behaviors of AZ31 magnesium alloy in simulated body fluid10.1016/j.msec.2008.08.026 ↗
13. Effect of pH on the in vitro corrosion rate of magnesium degradable implant material10.1016/j.msec.2010.04.003 ↗
14. In vitro studies of biomedical magnesium alloys in a simulated physiological environment: a review10.1016/j.actbio.2010.12.004 ↗
15. Degradable biomaterials based on magnesium corrosion10.1016/j.cossms.2009.04.001 ↗
16. Magnesium hydroxide temporarily enhancing osteoblast activity and decreasing the osteoclast number in peri-implant bone remodeling10.1016/j.actbio.2009.12.037 ↗
17. A biodegradable polymer-based coating to control the performance of magnesium alloy orthopaedic implants10.1016/j.biomaterials.2009.11.111 ↗
18. Electrochemical deposition of conducting polymer coatings on magnesium surfaces in ionic liquid10.1016/j.actbio.2010.09.006 ↗
19. Hydroxyapatite coating of AZ31 magnesium alloy by a solution treatment and its corrosion behavior in NaCl solution10.1016/j.surfcoat.2011.04.036 ↗
20. High corrosion resistance of magnesium coated with hydroxyapatite directly synthesized in an aqueous solution10.1016/j.electacta.2009.07.033 ↗
21. Characterization and degradation behavior of AZ31 alloy surface modified by bone-like hydroxyapatite for implant applications10.1016/j.apsusc.2008.09.078 ↗
22. Electrodeposition of hydroxyapatite coating on AZ91D magnesium alloy for biomaterial application10.1016/j.matlet.2008.02.048 ↗
23. In vitro degradation and mechanical integrity of Mg–Zn–Ca alloy coated with Ca-deficient hydroxyapatite by the pulse electrodeposition process10.1016/j.actbio.2009.12.009 ↗
24. Corrosion protection of biodegradable magnesium implants using anodization10.1016/j.msec.2010.08.019 ↗
25. Microstructure and corrosion behavior of coated AZ91 alloy by micro arc oxidation for biomedical application10.1016/j.apsusc.2009.06.116 ↗
26. Corrosion resistance of oxide layers formed on AZ91 Mg alloy in KMnO4 electrolyte by plasma electrolytic oxidation10.1016/j.electacta.2009.04.047 ↗
27. Effect of additives on structure and corrosion resistance of ceramic coatings on Mg–Li alloy by micro-arc oxidation10.1016/j.cap.2009.10.011 ↗
28. Effect of (NaPO3)6 concentrations on corrosion resistance of plasma electrolytic oxidation coatings formed on AZ91D magnesium alloy10.1016/j.jallcom.2007.10.072 ↗
29. Investigation on hydrophilicity of micro-arc oxidized TiO2 nano/micro-porous layers10.1016/j.electacta.2010.05.021 ↗
30. Kinetic aspects of aluminium titanate layer formation on titanium alloys by plasma electrolytic oxidation10.1016/S0169-4332(02)00848-6 ↗
31. Characterisation of oxide films produced by plasma electrolytic oxidation of a Ti–6Al–4V alloy10.1016/S0257-8972(00)00719-2 ↗
32. Growth regularity of ceramic coating on magnesium alloy by plasma electrolytic oxidation10.1016/j.jallcom.2008.01.069 ↗
33. Plasma electrolysis for surface engineering10.1016/S0257-8972(99)00441-7 ↗
34. Film formation in the second step of micro-arc oxidation on magnesium alloys10.1016/j.corsci.2009.12.025 ↗
35. Electrochemical corrosion behaviour of plasma electrolytic oxidation coatings on AM50 magnesium alloy formed in silicate and phosphate based electrolytes10.1016/j.electacta.2009.02.004 ↗
36. Corrosion performance of plasma electrolytic oxidized AZ31 magnesium alloy in silicate solutions with different additives10.1016/j.surfcoat.2010.03.032 ↗
37. Effect of additives on structure and corrosion resistance of plasma electrolytic oxidation coatings on AZ91D magnesium alloy in phosphate based electrolyte10.1016/j.surfcoat.2010.03.035 ↗
38. Formation of oxygen bubbles and its influence on current efficiency in micro-arc oxidation process of AZ91D magnesium alloy10.1016/j.tsf.2005.03.050 ↗
39. Using a synthetic body fluid (SBF) solution of 27mM HCO3− to make bone substitutes more osteointegrative10.1016/j.msec.2007.10.058 ↗
40. Degradation behaviour of pure magnesium in simulated body fluids with different concentrations of HCO3−10.1016/j.corsci.2011.01.015 ↗
41. Electrochemical performance of micro arc oxidation films formed on AZ91D magnesium alloy in silicate and phosphate electrolytes10.1016/j.surfcoat.2005.05.039 ↗
42. Effect of alumina sol addition to micro-arc oxidation electrolyte on the properties of MAO coatings formed on magnesium alloy AZ91D10.1016/j.surfcoat.2005.05.039 ↗
43. A study on alkaline heat treated Mg–Ca alloy for the control of the biocorrosion rate10.1016/j.jallcom.2010.02.098 ↗
44. Synthesis and characterization of bioactive forsterite nanopowder10.1016/j.actbio.2009.01.048 ↗