journal article·2021-12-27Open access

Improvement of Mechanical and Corrosion Properties of Commercially Pure Titanium Using Alumina PEO Coatings

Viorel Malinovschi, Alexandru Horia Marin, Catalin Ducu, Sorin Moga, Victor Andrei, Elisabeta Coaca, Valentin Craciun, Mihail Lungu, Cristian P. Lungu

Coatings· Volume 12· Issue 1

Abstract

In this study, the surface of commercially pure titanium (Cp-Ti) was covered by a 21–95 µm-thick aluminum oxide layer using plasma electrolytic oxidation. Coating characterization revealed the formation of nodular and granular α- and γ-Al2O3 phases with minor amounts of TiAl2O5 and Na2Ti4O9 which yielded a maximum 49.0 GPa hardness and 50 N adhesive critical load. The corrosion resistance behavior in 3.5 wt.% NaCl solution of all plasma electrolytic oxidation (PEO) coatings was found to be two orders of magnitude higher compared to bare Ti substrate.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Metal and Thin Film Mechanics · High-Temperature Coating Behaviors · Magnesium Alloys: Properties and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Environmental Engineering and Applied Engineering Sciences, University of Pitesti, 110040 Pitesti, Romania

Institute for Nuclear Research Pitesti, 115400 Mioveni, Romania

Research Centre for Advanced Materials, University of Pitesti, 110040 Pitesti, Romania

ELSSA Laboratory SRL, 110109 Pitesti, Romania

National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania

Extreme Light Infrastructure for Nuclear Physics, 077126 Magurele, Romania

Funding

Unitatea Executiva Pentru Finantarea Invatamantului Superior a Cercetarii Dezvoltarii si Inovarii

References (28)

Show source-provided references
1. Machining titanium and its alloys10.1080/10940349908945686 ↗
2. A study of the microstructure and hardness of two titanium alloys: Commercially pure and Ti–6Al–4V10.1016/j.jallcom.2009.06.172 ↗
3. Attributes, characteristics, and applications of titanium and its alloys10.1007/s11837-010-0071-1 ↗
4. A comparative study of the influence of plasma treatments, PVD coatings and ion implantation on the tribological performance of Ti–6Al–4V10.1016/S0257-8972(99)00024-9 ↗
5. Experimental and numerical wear studies of porous Reactive Plasma Sprayed Ti–6Al–4V/TiN composite coating10.1016/j.wear.2014.01.012 ↗
6. Synthesis and characterization of nano-crystalline CVD diamond film on pure titanium using Ar/CH4/H2 gas mixture10.1016/j.matlet.2006.08.033 ↗
7. Study of the surface layer formed by the laser processing of Ti–6Al–4V alloy in a dilute nitrogen environment10.1016/S0924-0136(01)00595-7 ↗
8. Surface modification and tribological behaviour of titanium and titanium alloys after YAG-laser treatments10.1016/S0257-8972(97)00653-1 ↗
9. Laser deposition of wear-resistant titanium oxynitride/titanium composite coatings on Ti-6Al-4V alloy10.1016/j.apsusc.2020.147212 ↗
10. Combined effect of TiN coating and surface texture on corrosion-wear behavior of selective laser melted CP-titanium in simulated body fluid10.1016/j.jallcom.2019.152667 ↗
11. The effect of surface preparation on the protective properties of Al2O3 and HfO2 thin films deposited on cp-titanium by atomic layer deposition
12. Improving surface features of PEO coatings on titanium and titanium alloys with zirconia particles: A review10.1016/j.surfin.2020.100888 ↗
13. Review of the role of graphene and its derivatives in enhancing the performance of plasma electrolytic oxidation coatings on titanium and its alloys10.1016/j.apsadv.2021.100140 ↗
14. Plasma electrolytic oxidation (PEO) for production of anodised coatings on lightweight metal (Al, Mg, Ti) alloys10.1179/174591908X372482 ↗
15. Influence of sodium aluminate concentration and process duration on microstructure, mechanical and electrochemical behavior of PEO coatings formed on CP-Ti10.1016/j.surfcoat.2021.127240 ↗
16. Effects of reagent purity on plasma electrolytic oxidation of titanium in an aluminate–phosphate electrolyte10.1080/00202967.2015.1121692 ↗
17. The corrosion and tribocorrosion resistance of PEO composite coatings containing α-Al2O3 particles on 7075 Al alloy10.1016/j.surfcoat.2018.06.027 ↗
18. Effect of α-Al2O3 on the properties of cold sprayed Al/α-Al2O3 composite coatings on AZ91D magnesium alloy10.1016/j.apsusc.2009.08.012 ↗
19. Effect of α-Al2O3 additive on the microstructure and properties of MAO coatings prepared on low carbon steel10.1016/j.jmrt.2020.02.014 ↗
20. Preparation, characteristics and corrosion properties of α-Al2O3 coatings on 10B21 carbon steel by micro-arc oxidation10.1016/j.surfcoat.2018.11.094 ↗
21. Moulder, F., Stickle, W.F., Sobol, P.E., and Bomben, K.D. (1995). Handbook of X-ray Photoelectron Spectroscopy, ULVAC-PHI Inc.
22. Naumkin, A.V., Kraut-Vass, A., Gaarenstroom, S.W., and Powell, C.J. (2021, November 19). NIST X-ray Photoelectron Spectroscopy Database, NIST Standard Reference Database 20, Version 4.1, 2012, Available online: https://srdata.nist.gov/xps/.
23. Effect of phosphorus-ion implantation on the corrosion resistance and biocompatibility of titanium10.1016/S0142-9612(02)00020-0 ↗
24. Surface modification of Na2Ti3O7 nanofibre arrays using N-doped graphene quantum dots as advanced anodes for sodium-ion batteries with ultra-stable and high-rate capability10.1039/C9TA01641D ↗
25. Integrated in situ characterization of a molten salt catalyst surface: Evidence of sodium peroxide and hydroxyl radical formation10.1002/ange.201704758 ↗
26. Unit-cell refinement from powder diffraction scans10.1107/S0021889881009618 ↗
27. Analysis of phase distribution for ceramic coatings formed by microarc oxidation on aluminum alloy10.1111/j.1151-2916.1998.tb02493.x ↗
28. Kinetic aspects of aluminium titanate layer formation on titanium alloys by plasma electrolytic oxidation10.1016/S0169-4332(02)00848-6 ↗