Structure of the Al-Сr-Ni Coating Formed on the H20N80 Alloy Substrate and its Transformation at 1150 °С

Abstract:

The structure and phase transformation of the Al-Cr-Ni coating obtained by the diffusion interaction of the H20N80 + AD1 multilayer composite material during heat treatment are investigated in this paper. Investigations were carried out at 1150 °C with the heat treatment holding time of 1-50 hours. It is established that an increase in the heat treatment duration leads to the alignment of the coating chemical composition accompanied by increasing the concentration of nickel and decreasing the aluminum concentration. It is shown that the diffusion redistribution of Al in the coating during thermal exposure in the Al-Cr-Ni system is slower than in the binary Al-Ni system

• Periodical: Applied Mechanics and Materials (Volume 788)
• Pages: 225-229
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.788.225
• Online since: August 2015
• Authors: Victor Georgievich Shmorgun, Aleksandr O. Taube*, A.I. Bogdanov
• Keywords: Diffusion, Heat-Resistant Protective Coating, Intermetallics, Layered Composite Material, Phase Composition

References

[1] J. Colin, Analysis of chill-cast NiAl intermetallic compound with copper additions, J. Mater. Eng. Perform. 11 (2002) 487-491.

DOI: 10.1361/105994902770343700

[2] E.N. Kablov, O.G. Ospennikova, O.A. Bazyleva, Foundry structural alloys based on nickel aluminide, Engine. 4 (2010) 22-26.

[3] E.N. Kablov, S.A. Muboyadzhyan, Protective coatings of GTE turbine blades, Gas turbine technology. 3 (2001) 30-32.

[4] V. Desai, Materials for high-temperature protection, J. Mater. Eng. Perform. 58 (2006) 15-16.

[5] V.M. Kissel, Coating of Ni-Al intermetallic compounds by high-speed air-fuel spraying, Aerospace Equipment and Technology. 10 (2009) 50-55.

[6] O. Culha, Microstructural, Thermal and Mechanical Properties of HVOF Sprayed Ni–Al-based Bond Coatings on Stainless Steel Substrate, Journal of Materials Processing Technology. 204 (2008) 221–230.

DOI: 10.1016/j.jmatprotec.2007.11.036

[7] V. Zadorozhnyy, Coating of metals with intermetallics by mechanical alloying, J. Alloys Compd. 509 (2011) 507–509.

[8] K. Morsi, S. Shinde, E. A. Olevsky, Self-propagating high-temperature synthesis (SHS) of rotator mixedand mechanically alloyed Ni/Al powder compacts, J. Mater. Sci. 41 (2006) 5699–5703.

DOI: 10.1007/s10853-006-0068-x

[9] P.T. Kolomytsev, High-temperature protective coatings for nickel alloys, Metallurgy, Moscow, (1991).

[10] V.G. Shmorgun, A.I. Bogdanov, A.O. Taube, Integrated technology for producing nickel aluminide coating on the surface of steel products, Proceedings of the universities. Ferrous metallurgy. 5 (2014) 64-65.

[11] V.G. Shmorgun, A.O. Taube, A.V. Krohalev, Investigation of the Phase Composition of the Diffusion Zone in the Al-Ni-Cr Composite Material, Applied Mechanics and Materials. 698 (2015) 430-433.

DOI: 10.4028/www.scientific.net/amm.698.430

[12] V.G. Shmorgun, Y.P. Trykov, A.I. Bogdanov, L.M. Gurevich, The effect of high-temperature heat treatment on the transformation of the structure of hybrid coatings Ni/Ni2Al3, Problems of Materials Science. Welding and Strength in engineering. 9 (2012).

[13] Z. D. Xiang, A Phenomenological Model for Lifetime Design of Ni2Al3/Ni Hybrid Coating Formed on Creep Resistant Ferritic Steels, J. Mater. Sci. 47 (2011) 257-266.

DOI: 10.1007/s10853-011-5793-0

[14] Z. D. Xiang, Degradation Kinetics at 650°C and Lifetime Prediction of Ni2Al3/Ni Hybrid Coating for Protection Against High Temperature Oxidation of Creep Resistant Ferritic Steels, Corros. Sci. 53 (2011) 3426-3434.

DOI: 10.1016/j.corsci.2011.06.022