Effect of HfO2 Particles on Ceramic Coating Fabricated on Ti6Al4V Alloy via Plasma Electrolytic Oxidation
Source abstract
Abstract
Hafnium dioxide (HfO2) has a wide bandgap and high dielectric constant. We prepared ceramic coatings on Ti6Al4V alloys via plasma electrolytic oxidation (PEO) in an electrolyte with HfO2 particles. The influence of the HfO2 particles on the microstructure, phase composition, elemental distribution, and corrosion resistance of the PEO coatings was systematically investigated. The results showed that the addition of HfO2 increased the oxidation voltage (from 462 to 472 V) and promoted the microarc sintering reaction so that the thickness and hardness of the resulting PEO coating increased. Moreover, the quantity of the micropores on the coating surface caused by the discharge decreased after adding the HfO2 particles. The X-ray diffraction patterns confirmed that the HfO2 particles were incorporated into the coating by remelting and sintering the microarc. Furthermore, the corrosion resistance of the PEO coating was remarkably increased after introducing HfO2, which was attributed to the increase in the electrode potential and the densification of the coating structure.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Metal and Thin Film Mechanics · Magnesium Alloys: Properties and Applications · Titanium Alloys Microstructure and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical and Engineering, Xihua University, Chengdu 610039, China
College of Materials Science and Engineering, Xihua University, Chengdu 610039, China
School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
Funding
Research Foundation for Talented Scholars of Xihua University
References (28)
Show source-provided references
1. An overview on the use of titanium in the aerospace industry10.1016/0921-5093(96)10233-1 ↗
2. Multi-step anodizing on Ti6Al4V components to improve tribomechanical performances10.1016/j.surfcoat.2012.12.019 ↗
3. Progress in structural materials for aerospace systems10.1016/j.actamat.2003.08.023 ↗
4. High temperature tribological behavior of microarc oxidation film on Ti-39Nb-6Zr alloy10.1016/j.surfcoat.2018.04.062 ↗
5. Review of surface pretreatments for titanium alloys10.1016/0143-7496(95)91627-I ↗
6. Effect of NaAlO2 concentrations on the properties of micro-arc oxidation coatings on pure titanium10.1016/j.matlet.2016.02.024 ↗
7. Liu, S., Chen, J., Zhang, D., Wang, Y., He, Z., and Guo, P. (2022). Properties of Micro-Arc Oxidation Coatings on 5052 Al Alloy Sealed by SiO2 Nanoparticles. Coatings, 12.10.3390/coatings12030373 ↗
8. Rodriguez, L., Paris, J., Denape, J., and Delbé, K. (2023). Micro-arcs oxidation layer formation on aluminium and coatings tribological properties—A Review. Coatings, 13.10.3390/coatings13020373 ↗
9. Effect of CoSO4 on the characteristics of micro-arc oxidation coatings10.1080/02670844.2019.1650468 ↗
10. One-step approach for hydroxyapatite-incorporated TiO2 coating on titanium via a combined technique of micro-arc oxidation and electrophoretic deposition10.1016/j.apsusc.2011.03.058 ↗
11. Effect of ZrO2 particle on the performance of micro-arc oxidation coatings on Ti6Al4V10.1016/j.apsusc.2015.03.051 ↗
12. Synthesis, corrosion, and wear resistance of a black microarc oxidation coating on pure titanium10.1016/j.surfcoat.2020.125454 ↗
13. Preparation and performance of alumina ceramic coating doped with aluminum nitride by micro arc oxidation10.1016/j.ceramint.2020.03.179 ↗
14. Influence of graphene particles on the micro-arc oxidation behaviors of 6063 aluminum alloy and the coating properties10.1016/j.apsusc.2017.06.202 ↗
15. Corrosion behavior of a self-sealing coating containing CeO2 particles on pure Mg produced by micro-arc oxidation10.1016/j.surfcoat.2020.125456 ↗
16. Influence of combined B4C/C particles on the properties of microarc oxidation coatings on Mg-Li alloy10.1016/j.surfcoat.2022.128399 ↗
17. Effect of Bi2S3 on Characteristics of Micro-arc Oxidation Coating formed on TC4 Alloy10.20964/2021.01.06 ↗
18. High temperature corrosion of MoSi2–HfO2 composites in coal slag10.1016/j.jpcs.2004.06.027 ↗
19. The electrochemical behaviour of naturally passivated hafnium in aqueous solutions of different pH10.1023/A:1004539421982 ↗
20. Corrosion Protection of Copper Using Al2O3, TiO2, ZnO, HfO2, and ZrO2 Atomic Layer Deposition10.1021/acsami.6b13571 ↗
21. Characterization of hafnium anodic oxide films: An AC impedance investigation10.1016/0013-4686(95)00003-W ↗
22. Addition of LuCl3 for Improving Micro-structure and Corrosion Resistance of Micro-arc Oxidation Coating Formed on 606110.20964/2021.04.19 ↗
23. Morphological evolution and burning behavior of oxide coating fabricated on aluminum immersed in etidronic acid at high current density10.1016/j.surfcoat.2019.05.081 ↗
24. Influence of surface micro grooving pretreatment on MAO process of aluminum alloy10.1016/j.apsusc.2016.08.088 ↗
25. Comparison of chemical stability and corrosion resistance of group IV metal oxide films formed by thermal and plasma-enhanced atomic layer deposition10.1038/s41598-019-47049-z ↗
26. Crystal defects in coatings and their influence on coating properties10.1016/0040-6090(79)90547-9 ↗
27. The Estimation of Localized Corrosion Behavior of Ni-Based Dental Alloys Using Electrochemical Techniques10.1007/s11665-011-0014-1 ↗
28. Effect of thermal oxidation on electrochemical corrosion behaviour of ZrTi alloys for dental applications10.1002/maco.201508327 ↗