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References 1. Bolelli G. (2009), HVOF-sprayedWC-CoCr coatings on Al alloy: Effect of the coating thickness on the tribological properties, Wear, Vol. 267, 944-953. 2. Bolelli G. et al. (2007), Microstructural and tribological comparison of HVOF-sprayed and post-treated M-Mo-Cr-Si (M=Co, Ni) alloy coatings, Wear, Vol. 263, 1397-1416. 3. Bolelli G., Lusvarghi L., Barletta M. (2009), HVOF-sprayedWC- CoCr coatings on Al alloy: Effect of the coating thickness on the tribological properties, Wear, Vol. 267, 944-953. 4. Fang W. (2009), Processing optimization, surface

Wear Technology; ASM Handbook Volume 18:; ASM International, 1992; Vol. 18; ISBN 978-0-87170-380-4. 12. Szala, M.; Szafran, M.; Macek, W.; Marchenko, S.; Hejwowski, T. Abrasion Resistance of S235, S355, C45, AISI 304 and Hardox 500 Steels with Usage of Garnet, Corundum and Carborundum Abrasives. Adv. Sci. Technol. Res. J. 2019, 13, doi:10.12913/22998624/113244. 13. Jegadeeswaran, N.; Ramesh, M.R.; Bhat, K.U. Combating Corrosion Degradation of Turbine Materials Using HVOF Sprayed 25% (Cr3C2-25(Ni20Cr)) + NiCrAlY Coating. Int. J. Corros. 2013 , 2013 , 824659, doi:10

Reference 1. A lvarado -O rozcoj . E. A. et al. 2016. Electrochemical Corrosion of HVOF-Sprayed NiCoCrAlY Coatings in CO2-Saturated Brine . Journal of Thermal Spray Technology 25/7, 1330–1343. 2. B olelli G. A. et al. 2014. Comparative Study of the Dry Sliding Wear Behaviour of HVOF Sprayed WC-(W, Cr) 2C Ni and WC-CoCr Hardmetal Coatings, “Wear” 309, 96-111. 3. B rezinová J. A. et al. 2015. Quality Evaluation of HVOF Coatings on the Basis of WC-Co in Tribocorrosive Conditions . „Mater. Sci. Forum“ 811, 63-66. 4. G uilemany J. M A. et al. 2001. Role of

REFERENCES 1. Aw P.K., Tan B.H. (2006), Study of microstructure, phase and microhardness distribution of HVOF sprayed multi-modal structured and conventional WC–17Co coatings, Journal of Materials Processing Technology , 174(1-3), 305–311. 2. Berget J., Rogne T., Bardal E. (2007), Erosion–corrosion properties of different WC–Co–Cr coatings deposited by the HVOF process—influence of metallic matrix composition and spray powder size distribution, Surface and Coatings Technology , 201(18), 7619–7625. 3. Bolelli G., Börner T., Bozza F., Cannillo V., Cirillo G

REFERENCES 1. Tan J.C., Looney L., Hashmi M.S.J. Component repair using HVOF thermal spraying, Journal of Materials Processing Technology 1999 , 92-93, 203-208. 2. Oksa M. et al. Optimization and Characterization of High Velocity Oxy-fuel Sprayed Coatings: Techniques, Materials, and Applications, Coatings 2011 , 1, 17–52. 3. Nahvi S.M., Jafari M. Microstructural and mechanical properties of advanced HVOF-sprayed WC-based cermet coatings, Surface and Coatings Technology 2016 , 286, 95–102. 4. Zhou W. et al. High temperature wear performance of HVOF-sprayed Cr 3

REFERENCES 1. Brezinová J., Landová M., Guzanová A., Dulebová Ľ., Draganovská D.: Microstructure, Wear Behavior and Corrosion Resistance of WC–FeCrAl and WC–WB–Co Coatings. Metals 2018 , 8(6), 399. 2. Bolelli G., Hulka I., Koivuluoto H., Lusvarghi L., Milanti A.: Properties of WC–FeCrAl coatings manufactured by different high velocity thermal spray processes. Surf. Coat. Technol . 2014 , 247, 74–89. 3. Hulka I., Utu D., Serban V.-A., Dan M.-L., Matikainen V., Vuoristo P.: Corrosion Behavior of WC–FeCrAl Coatings Deposited by HVOF and HVAF Ther mal Spraying

References 1. Suegama, P. H., Espallargas, N., Guilemany, J. M., et al. Electrochemical and Structural Characterization of Heat- Treated Cr3C2-NiCr Coatings. Journal of The Electrochemical Society 2006 , 153 (10), B434-B445. 2. Guilemany, J.M., Espallargas, N., Suegama, P. H. Comparative study of Cr3C2-NiCr coatings obtained by HVOF and hard chromium coatings. Corrosion Science 2006 , 48 (10), 2998-3013. 3. Ji, G.-C., Li C.-J., Wang, Y.-Y. Microstructural characterization and abrasive wear performance of HVOF sprayed Cr3C2-NiCr coating. Surface & Coatings

REFERENCES 1. Bolelli G. et al. Cermet coatings with Fe-based matrix as alternative to WC–CoCr: Mechanical and tribological behaviours. Surface and Coatings Technology 2012 , 206 (19), 4079–4094. 2. Sahraouia T. HVOF sprayed WC–Co coatings: Microstructure, mechanical properties and friction moment prediction, Materials & Design 2010 , 31, 1431–1437. 3. Mingheng L., Panagiotis D., Computational study of particle in-flight behavior in the HVOF thermal spray process. Chemical Engineering Science 2006 , 61, 6540-6552. 4. Landová M., Brezinová J., Guzanová A

Coatings in Arthroplasty: Review Paper

The modern coatings used in arthroplasty for long term implants are reviewed. The phosphate coatings are the most popular technique to improve the bone-implant interfacial strength and promote the osseointegration. The plasma spraying, electrophoretic precipitation, powder metallurgy, ion beam sputtering, high velocity oxy-fuel (HVOF) combustion spraying, sol-gel technique, biomimetic deposition are mostly used to obtain the phosphate, usually hydroxyapatite coatings.

The composite coatings based on HA are proposed to improve biochemical and mechanical properties. The Ti, Ti alloys, titania, zirconia, zinc particles and glasses are suggested to strengthen the HA matrix, and some organic compounds and polymers to improve the biochemical behaviour.

Among another coatings, titania, zirconia, aluminia, carbon and organic, glass - ceramics and titania - silicate coatings are mostly proposed.

.J.: Degradation of a TBC with HVOF-CoNiCrAlY bond coat. Journal of Thermal Spray Technology, Vol. 23, No. 5, 2014. 5. Jalowiecka A., Naumenko D., Ernsberger M., Herzog R., Quadakkers W.J.: Alumina formation and microstructural changes of aluminized CoNiCrAlY coating during high temperature exposure in the temperature range 925°C–1075°C. Materials at High Temperatures, Vol. 35, Issue 1-3, 2018. 6. Kumar D., Pandey K.N., Das D.K.: Thermal cyclic resistance behavior of Inconel 800 super alloy substrate with thermal barrier coatings by plasma spraying, Material Today Proceedings