Influence of Zirconia Powder Fractional Composition on Microstructure and Properties of Thermal Barrier Coating Obtained by Thermal Spraying

Abstract:

Thermal spraying is one of the most promising methods for obtaining thermal barrier coatings for aerospace applications. Providing the necessary set of coating properties and their stable reproducibility are an actual task of the modern production. The purpose of this work was to determine the influence of the initial powders fractional composition on the structure and properties of the protective coating. The microstructure and the elemental composition features of the heat-resistant and ceramic layers of the thermal barrier coating are investigated. It is shown that the microstructure, porosity and microhardness of the coating ceramic layer depend on the ZrO₂+8%Y₂O₃ initial powder fractional composition. The porosity of the coating and the average pore size increase with increasing particle size of the powder. The maximum value of the ceramic layer microhardness is observed when using a powder fraction of 40-80 μm. The studies have found that microstructure and the necessary combination of coating physical and mechanical properties are achieved during the deposition of zirconia powder fractions 40-80 microns.

• Periodical: Materials Science Forum (Volume 945)
• Pages: 700-705
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.945.700
• Online since: February 2019
• Authors: V.Yu. Hristosova, O.S. Bondareva, Sergey Konovalov
• Keywords: Coating Microstructure, Coating Porosity, Thermal Barrier Coating, Thermal Spraying, Zirconia Powder

References

[1] Yu.S. Eliseev, A.G. Boytsov and V.V Krymov, Technology of aviation gas turbine engines production, Mashinostroyeniye. Moscow. (2003).

[2] F.I. Demin, N.D. Pronichev and I.L. Shitarev, Technology of gas turbine engines main parts production. SSAU Publishers. Samara. (2010).

[3] Yu.S. Eliseev, V.V. Krymov, S.A. Kolesnikov and Yu.N. Vasilyev, Non-metallic composite materials in structural elements and the manufacture of aviation gas turbine engines. Bauman University Publishers. Moscow. (2007).

[4] Xu. Huibin and Guo Hongbo, Thermal Barrier Coatings, Woodhead Publishing Limited. Cambridge. (2011).

[5] I, Dincer and C. Zamfirescu, Advanced Power Generation Systems. Advanced Power Generation Systems. Oshawa. (2014).

DOI: 10.1016/b978-0-12-383860-5.00006-7

[6] A.G. Bratuhin, G.K. Yazov and B.E. Karasev, Modern technology in the production of gas turbine engines. Mashinostroyenie. Moscow. (1997).

[7] V.I. Bogdanovich, S.B. Maryin, I.A. Dokukina and M.G. Giorbelidze, Development of coatings composition and equipment for repair and strengthening of power generating unit elements by plasma spraying. Tsvetnye Metally. 5 (2016) 56-62.

DOI: 10.17580/tsm.2016.05.09

[8] V.A. Barvinok, Plasma in Technology: Reliability and Resource. Nauka i technologii Publishers. Moscow. (2005).

[9] V.I. Bogdanovich and M.G. Giorbelidze, Enhancing thermal barrier coatings performance through reinforcement of ceramic topcoat. IOP Conference Series: Materials Science and Engineering. 156 (2016) 1-7.

DOI: 10.1088/1757-899x/156/1/012016

[10] G.V. Bobrov, A.A. Ilin and V.S. Spektor, Theory and technology of inorganic coatings formation. Alfa-М. Мoscow. (2014).

[11] V.I. Bogdanovich, M.G. Giorbelidze, Metallographic Study of Mesostructure-Ordered Plasma Ceramic Coatings. Key Engineering Materials. 743 (2017) 118-123.

DOI: 10.4028/www.scientific.net/kem.743.118

[12] A.F. Puzryakov, Theoretical bases of plasma spraying technology. Bauman University Publishers. Moscow. (2003).

[13] V.I. Bogdanovich and M.G. Giorbelidze, Analysis of the ceramic layer microstructure influence on plasma spray thermal barrier coating performance. IOP Conference Series: Materials Science and Engineering. 286 (2018) 1-7.

DOI: 10.1088/1757-899x/286/1/012008

[14] J.J. Skrzypek, A.W. Ganczarski, F. Rustichelli and H. Egner, Advanced Materials and Structures for Extreme Operating Conditions. Springer. Berlin. (2008).

[15] V.I. Bogdanovich, M.G. Giorbelidze, Mathematical simulation of surface heating during plasma spraying. IOP Conference Series: Materials Science and Engineering. 177 (2017) 1-7.

DOI: 10.1088/1757-899x/177/1/012057

[16] S. Bose, High Temperature Coatings. Elsevier Inc. (2007).

[17] B. Robert, Heimann, Plasma spray coating. Wiley. Weinheim. (1996).

[18] V.I. Bogdanovich, M.G. Giorbelidze, Mathematical modelling of powder material motion and transportation in high-temperature flow core during plasma coatings application. IOP Conference Series: Materials Science and Engineering. 327 (2018) 1-7.

DOI: 10.1088/1757-899x/327/2/022036

[19] G.-H. Meng, B.-Y. Zhang, H. Liu, G.-J. Yang, T. Xu, C.-X. Li, C.-J. Li, Highly oxidation resistant and cost effective MCrAlY bond coats prepared by controlled atmosphere heat treatment. Surface and Coatings Technology. 347 (2018) 54-65.

DOI: 10.1016/j.surfcoat.2018.04.068

[20] V.I. Bogdanovich, M.G. Giorbelidze, Model of powder material plastic transformation during plasma coating application. Key Engineering Materials. 685 (2016) 685-689.

DOI: 10.4028/www.scientific.net/kem.685.685