The Study of High Temperature Oxidation Performance of Thermal Barrier Coatings Prepared by Plasma Spraying and Laser Remelting

Abstract:

The CoCrAlYTaSi/YSZ thermal barrier coating was prepared on the surface of GH586 by plasma spraying and laser remelting process. The coating prepared by plasma spraying, YSZ have no phase transformation. After remelting, YSZ also have no phase transformation, but the grain of the preferential growth orientation changed. Plasma spraying coating is mainly composed of t and t' phase, all the t phase transform into t' phase and recrystallization after remelting. After remelting, the substrate grain and γ' phase size are obviously grown up, leading to the decrease of high temperature oxidation resistance of substrate. In the process of oxidation, no obvious phase transformation are taken place in the plasma spraying coating, and the coating after laser remelting, tetragonal-monoclinic phase transformation happened.

• Periodical: Advanced Materials Research (Volume 1142)
• Pages: 161-167
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1142.161
• Online since: January 2017
• Authors: Yin Qun Hua, Wenwen SHUAI, Wei Liu, Rui Fang Chen, Jiang Dong Cao
• Keywords: High Temperature Oxidation, Laser Remelting, Plasma Spraying, Thermal Barrier Coating

References

[1] D. Furrer, H. Fecht, Ni-based superalloys for turbine discs, JOM. 51 (1998) 14-17.

DOI: 10.1007/s11837-999-0005-y

[2] W.R. Chen, X. Wu, B.R. Marple, D.R. Nagy, P.C. Patnaik, TGO growth behaviour in TBCs with APS and HVOF bond coats, Surface & Coatings Technology, Surf. Coat. Technol. 202 (2008) 2677-2683.

DOI: 10.1016/j.surfcoat.2007.09.042

[3] X.F. Zhang, K.S. Zhou, J.B. Song, C.M. Deng, S.P. Niu, Z.Q. Deng, Deposition and CMAS Corrosion Mechanism of 7YSZ Thermal Barrier Coatings Prepared by Plasma Spray-Physical Vapor Deposition, J. Inorg. Mater. 30 (2015) 287-293.

DOI: 10.15541/jim20140397

[4] F.U. Binyou, H.E. Dingyong, L. Zhao, L.I. Xiaoyan, Microstructure and properties of arc sprayed coatings containing Fe-based amorphous phase, Surf. Eng. 25 (2009) 333-337.

DOI: 10.1179/026708409x396060

[5] X. Wang, W.X. Wang, G.Y. Qiong, Z.Q. Cui, X.B. She, Al-Si-based nano-Si3N4 composite coating prepared by plasma spraying and laser remelting on magnesium alloy, T. Metal. Heat. Treat. 35 (2014) 131-137.

[6] A.E. Coy, F. Viejo, F.J. Garcia-Garcia, Z. Liu, P. Skeldon, G.E. Thompson, Effect of excimer laser surface melting on the microstructure and corrosion performance of the die cast AZ91D magnesium alloy, Corros. Sci. 52 (2010) 387-397.

DOI: 10.1016/j.corsci.2009.09.025

[7] X.F. Zhang, K.S. Zhou, M. Liu, C.M. Deng, Z.Q. Deng, B.Y. Chen, Toughness and elasticity behaviors in nano-structured 7 wt. % Y2O3-stabilized ZrO2 coating, Surf. Coat. Technol. 276 (2015) 51-59.

DOI: 10.1016/j.surfcoat.2015.07.005

[8] Y.J. Su, R.W. Trice, K.T. Faber, H. Wang, W.D. Porter, Thermal conductivity, phase stability, and oxidation resistance of Y3Al5O12 (YAG)/Y2O3-ZrO2 (YSZ) thermal-barrier coatings. Oxid. Met. 61(2004): 253-271.

DOI: 10.1023/b:oxid.0000025334.02788.d3

[9] X.Z. Wang, X.Y. Liu, A Javed, C Zhu, G.Y. Liang, Phase transition behavior of yttria-stabilized zirconia from tetragonal to monoclinic in the lanthanum zirconate/yttria-stabilized zirconia coupled-system using molecular dynamics simulation, J Mol Liq, 207 (2015).

DOI: 10.1016/j.molliq.2015.03.053

[10] X.Q. Cao, R. Vassen, D. Stoever, Ceramic materials for thermal barrier coatings, J. Eur. Ceram. Soc. 24 (2004) 1-10.

[11] S. Ahmadian, A. Browning, E.H. Jordan , Three-dimensional X-ray micro-computed tomography of cracks in a furnace cycled air plasma sprayed thermal barrier coating, Scripta Mater. 97 (2015) 13-16.

DOI: 10.1016/j.scriptamat.2014.10.026