Funct. Mater. 2022; 29 (2): 221-227.
Effect of phase composition on the wear and corrosion resistances of the aluminium oxide coatings formed on the Al alloy substrate by microplasma oxidation
National Science Center Kharkov Institute of Physics and Technology, 1 Akademicheskaya Str., 61108 Kharkov, Ukraine
The two types of oxide coatings were obtained on the aluminum alloy AK7 using the method of microplasma oxidation. The phase composition of the first type of the coating contains 25 % of corundum (Al2O3-α), the second type of the corundum-free coating includes 78 % of Al2O3-η. It was established that the microhardness of Al2O3-α-containing coatings is increased by a factor of 1.3 through to 1.5 in comparison to that of Al2O3-η-containing coatings. The oxide coating containing α-phase shows the increase in the cavitation resistance by a factor of 1.45 through to 1.54 in comparison to that of the coating with η phase. The abrasion wear rate is 13 times lower for Al2O3-α in comparison to that for Al2O3-η. The early corrosion dissolution potential is 1.2 times higher for Al2O3-α in comparison to that of Al2O3-η.
| 1.F.Simchen, M.Sieber, A.Kopp, Th.Lampke, Coatings, 10, 628 (2020). DOI:10.3390/coatings10070628. https://doi.org/10.3390/coatings10070628 |
||||
| 2. A.L.Yerokhin, A.A.Voevodin, V.V.Lyubimov et al., Surf. Coat. Technol., 110, 140 (1998). https://doi.org/10.1016/S0257-8972(98)00694-X |
||||
| 3. D.S.Tsai, C.C.Chou, Metals, 8, 105 (2018). https://doi.org/10.3390/met8020105 |
||||
| 4. K.Schoenbach, K.Becker, Eur. Phys. J. D, 70, 29 (2016). https://doi.org/10.1140/epjd/e2015-60618-1 |
||||
| 5. D.V.Vinnikov, A.N.Ozerov, V.B.Yuferov, V.T.Fomin, Problems of Atomic Science and Technology, No. 1, 178 (2020). https://doi.org/10.46813/2020-125-178 |
||||
| 6. J.Pelletier, A.Anders, IEEE Transactions on Plasma Science, 33, 1944 (2005). https://doi.org/10.1109/TPS.2005.860079 |
||||
| 7. D.Yuting, L.Zhiyang, M.Guofeng, IOP Conf. Series: Materials Science and Engineering, 729, 012055 (2020). https://doi.org/10.1088/1757-899X/729/1/012055 |
||||
| 8. Q.Zhu, B.Zhang, X.Zhao, B.Wang, Coatings, 10, 128 (2020). https://doi.org/10.3390/coatings10020128 |
||||
| 9. M.Sieber, F.Simchen; R.Morgenstern et al., Metals, 5, 365 (2018). DOI:10.3390/ met8050356. | ||||
| 10. C.S.Dunleavy, I.O.Golosnoy, J.A.Curran, T.W.Clyne, Surface and Coatings Technology, 203, 3410 (2009). https://doi.org/10.1016/j.surfcoat.2009.05.004 |
||||
| 11. A.I.Gorchakov, E.A.Kryvonosova, Heavy Engineering Industry, No. 7, 26 (2008). | ||||
| 12. E.A.Krivonosova, A.I.Gorchakov, Elektrotechnical Electronica E+E, No. 5, 57 (2013). | ||||
| 13. V.G.Marinin, V.I.Kovalenko, N.S.Lomino et al., in: Proc. of Intern. Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV, v.2 (2000), p.567. | ||||
| 14. S.Schmidbauer, J.Hahn, F.Richter, Surface and Coatings Technology, 59, 325 (1993). https://doi.org/10.1016/0257-8972(93)90106-X |
||||
| 15. R.Zhou, R.L.Snyder, https://doi.org/10.1107/ S0108768191002719 | ||||
| 16. A.Anders, Handbook of Plasma Immersion Ion Implantation and Deposition, John Wiley & Sons, New York (2000). | ||||
| 17. D.Yuting, L.Zhiyang, Ma Guofeng, IOP Conf. Series: Materials Science and Engineering, 729, 012055 (2020). https://doi.org/10.1088/1757-899X/729/1/012055 |
||||
| 18. F.C.Walsh, C.T.J.Low, R.J.K.Wood, Trans. Inst. Met. Finish., 87, 122 (2009). https://doi.org/10.1179/174591908X372482 |
||||
| 19. Handbook of Hot-dip Galvanization, ed. by P.Maas, P.Peter, WILEY-VCH (2011). | ||||