Investigation on Corrosion Resistance and Formation Mechanism of a P–F–Zr Contained Micro-Arc Oxidation Coating on AZ31B Magnesium Alloy Using an Orthogonal Method
Source abstract
Abstract
In this study, the synergistic effects of NH4HF2, sodium phytate (Na12Phy), K2ZrF6, and treatment time on corrosion resistance of a micro-arc oxidation (MAO) treated magnesium alloy and the entrance mechanism of P, F, and Zr into anodic coatings were investigated using an orthogonal method. In addition, the roles of NH4HF2, Na12Phy, and K2ZrF6 on coating development were separately studied. The results show that NH4HF2 and Na12Phy, the corrosion inhibitors of magnesium alloys, are beneficial but K2ZrF6 is harmful to developing anodic coatings. The corrosion resistance of MAO coatings is synergistically determined by coating characteristics, though the coating thickness plays a main role. Na12Phy significantly improves but NH4HF2 decreases the corrosion resistance of MAO coatings, while excess high K2ZrF6 is harmful to the coating corrosion resistance. Treatment time can increase the coating thickness but is the least important factor in corrosion resistance. During MAO, NH4HF2, Na12Phy, and K2ZrF6 take part in coating formation, causing P, F, and Zr to compete with each other to enter into anodic coatings.
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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.
Affiliations
School of Materials and Electromechanics, Jiangxi Science and Technology Normal University, Nanchang 330013, China
Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Funding
National Natural Science Foundation of China
References (49)
Show source-provided references
1. Free non-vascularised fibular graft for treatment of post-traumatic bone defects
2. Strategies to improve the corrosion resistance of microarc oxidation (MAO) coated magnesium alloys for degradable implants: Prospects and challenges10.1016/j.pmatsci.2013.08.002 ↗
3. Fabrication and evaluation of a bioactive Sr–Ca–P contained micro-arc oxidation coating on magnesium strontium alloy for bone repair application10.1016/j.jmst.2015.11.012 ↗
4. Aqueous corrosion behavior of micro-arc oxidation (MAO)-coated magnesium alloys: A critical review10.1007/s11837-014-0952-9 ↗
5. Antibacterial effect of PEO coating with silver on AA707510.1016/j.msec.2017.02.084 ↗
6. Bioactive plasma electrolytic oxidation coatings-the role of the composition, microstructure, and electrochemical stability10.1002/jbm.b.32974 ↗
7. Microstructure, corrosion resistance and formation mechanism of alumina micro-arc oxidation coatings on sintered NdFeB permanent magnets10.1016/j.surfcoat.2016.12.023 ↗
8. Microstructure and corrosion behavior of coated AZ91 alloy by microarc oxidation for biomedical application10.1016/j.apsusc.2009.06.116 ↗
9. Degradation mechanism of micro-arc oxidation coatings on biodegradable Mg–Ca alloys: The influence of porosity10.1016/j.jallcom.2016.11.146 ↗
10. Formation, structure and composition of anodic films on AM60 magnesium alloy obtained by DC plasma anodizing10.1016/j.corsci.2004.07.038 ↗
11. Fabrication and degradation behavior of micro-arc oxidized biomedical magnesium alloy wires10.1016/j.surfcoat.2012.10.078 ↗
12. Influence of processing factors on properties of anodic coatings obtained on Mg–1.0Ca alloy10.1016/j.matchemphys.2013.04.034 ↗
13. Micro-arc oxidization of a novel Mg-1Ca alloy in three alkaline KF electrolytes: Corrosion resistance and cytotoxicity10.1016/j.apsusc.2013.11.038 ↗
14. In vitro degradation and biocompatibility of a strontium-containing micro-arc oxidation coating on the biodegradable ZK60 magnesium alloy10.1016/j.apsusc.2013.10.113 ↗
15. In vivo degradation performance of micro-arc-oxidized magnesium implants: A micro-CT study in rats10.1016/j.actbio.2012.09.017 ↗
16. Comparison of electrochemical corrosion behaviour of MgO and ZrO2 coatings on AM60 magnesium alloy formed by plasma electrolytic oxidation10.1016/j.corsci.2009.06.034 ↗
17. Effect of additives on the properties of plasma electrolytic oxidation coatings formed on AM50 magnesium alloy in electrolytes containing K2ZrF610.1016/j.surfcoat.2011.07.054 ↗
18. Structure and corrosion behavior of oxide layer with Zr compounds on AZ31 Mg alloy processed by two-step plasma electrolytic oxidation10.1016/j.surfcoat.2013.10.042 ↗
19. Self-sealing micro-arc oxidation coating on AZ91D Mg alloy and its formation mechanism10.1016/j.surfcoat.2014.09.071 ↗
20. Study on the microstructure and corrosion resistance of ZrO2-containing ceramic coatings formed on magnesium alloy by plasma electrolytic oxidation10.1016/j.jallcom.2008.06.151 ↗
21. Wang, S.M., Fu, L.X., Nai, Z.G., Liang, J., and Cao, B.C. (2018). Comparison of corrosion resistance and cytocompatibility of MgO and ZrO2 coatings on AZ31 magnesium alloy formed via plasma electrolytic oxidation. Coatings, 8.10.3390/coatings8120441 ↗
22. Surface properties of titanium and zirconia dental implant materials and their effect on bacterial adhesion10.1016/j.jdent.2011.12.006 ↗
23. Bioactivity and cytocompatibility of zirconia (ZrO2) films fabricated by cathodic arc deposition10.1016/j.biomaterials.2006.03.007 ↗
24. Enhanced antibacterial properties, biocompatibility, and corrosion resistance of degradable Mg–Nd–Zr alloy10.1016/j.biomaterials.2015.02.096 ↗
25. Enhanced antimicrobial properties, cytocompatibility, and corrosion resistance of plasma-modified biodegradable magnesium alloys10.1016/j.actbio.2013.10.012 ↗
26. Fluoride ions as modifiers of the oxide layer produced by plasma electrolytic oxidation on AZ91D magnesium alloy10.1016/j.apsusc.2013.09.180 ↗
27. Corrosion performance of plasma electrolytic oxidation oxidized AZ31 magnesium alloy in silicate solutions with different additives10.1016/j.surfcoat.2010.03.032 ↗
28. The effects of inorganic additives to calcium phosphate on in vitro behavior of osteoblasts and osteoclasts10.1016/j.biomaterials.2010.01.002 ↗
29. Effect of fluoride-ion implantation on the biocompatibility of titanium for dental applications10.1016/j.apsusc.2008.03.075 ↗
30. Bioinorganics and biomaterials: Bone repair10.1016/j.actbio.2011.03.027 ↗
31. In situ evaluation of low-fluoride toothpastes associated to calcium glycerophosphate on enamel remineralization10.1016/j.jdent.2014.09.001 ↗
32. Effects of phosphates on microstructure and bioactivity of micro-arc oxidized calcium phosphate coatings on Mg–Zn–Zr magnesium alloy10.1016/j.colsurfb.2013.03.026 ↗
33. The effect of adding corrosion inhibitors into an electrolyte nickel plating bath for magnesium alloys10.1007/s11665-016-2265-3 ↗
34. Deposition behaviour of nickel phosphorus coating on magnesium alloy in a weak corrosive electroless nickel plating bath10.1016/j.jallcom.2015.10.300 ↗
35. Formation of silicon-calcium-phosphate-containing coating on Mg–Zn–Ca alloy by two-step micro-arc oxidation technique10.1016/j.matlet.2017.10.070 ↗
36. Systematic study of the electrolytic plasma oxidation process on a Mg alloy for corrosion protection10.1016/j.tsf.2005.08.156 ↗
37. Effects of topography and composition of titanium surface oxides on osteoblast responses10.1016/j.biomaterials.2003.11.011 ↗
38. Corrosion resistance of amorphous and crystalline Zr-based alloys in simulated seawater10.1016/j.elecom.2012.08.006 ↗
39. Electrochemical response of ZrO2-incorproated oxide layer on AZ91 Mg alloy processed by plasma electrolytic oxidation10.1016/j.surfcoat.2011.01.033 ↗
40. Crack self-healing of phytic acid conversion coating on AZ31 magnesium alloy by heat treatment and the corrosion resistance10.1016/j.apsusc.2014.06.104 ↗
41. Crystal structures of bacillus alkaline phytase in complex with divalent metal ions and inositol hexasulfate10.1016/j.jmb.2011.03.063 ↗
42. Ning, W.M. (1993). Appendix 3: Solubility product constants at 298.15 K. University Chemistry (І), Northeast University Press. (In Chinese).
43. Investigation of hybrid PEO coatings on AZ31B magnesium alloy in alkaline K2ZrF6–Na2SiO3 electrolyte solution
44. Effects of additives, voltage and their interactions on PEO coatings formed on magnesium alloys10.1016/j.surfcoat.2018.09.026 ↗
45. The characteristics of plasma electrolytic oxidation coatings on AZ41 magnesium alloy10.1016/j.surfcoat.2017.05.048 ↗
46. Role of particle type and concentration on characteristics of PEO coatings on AM50 magnesium alloy10.1016/j.surfcoat.2017.11.058 ↗
47. The corrosion and polarization behaviour of copper in domestic water in the presence of Ca, Mg, and Na-salts of phytic acid10.1016/0010-938X(94)00105-F ↗
48. Belinda Hurley, Rudolph Buchheit, Entrapped molybdate in phytate film and the corresponding anodic corrosion inhibition on AA2024-T310.1149/2.0391606jes ↗
49. Preparation and characterization of colored Ti/Zr conversion coating on AZ91D magnesium alloy10.1016/j.surfcoat.2015.06.069 ↗