Electron-Beam Surfacing Wear-Resistant Coatings, Reinforced Refractory Metal’s Borides

Abstract:

Structural and phase states of wear-resistant coatings obtained by cladding of self-fluxing nickel-based powder mixtures (77 % Ni, 15 % Cr, 2 % B, 3 % Si, 3 % Fe and others) using an electron beam injected in the atmosphere were investigated. The fabricated coatings possessed the complex gradient structure combining hard and ductile components. In the structure of coatings iron borides (Fe₂B) surrounded by the ductile matrix represented by Fe, Ni-based γ-solid solution were observed. An increase in the volume fraction of a high strength component in the coating can be reached by additional alloying of the surface by amorphous boron. In this case, microhardness of the coating increases up to 1200 HV.

• Periodical: Applied Mechanics and Materials (Volume 698)
• Pages: 419-423
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.698.419
• Online since: December 2014
• Authors: Ekaterina Drobyaz, Tatyana Zimoglyadova*, Victor Gromov
• Keywords: Coating, Electron-Beam Cladding, Hardness, High-Melting Compound, Structure

References

[1] A. Teplykh, A. Bataev, E. Drobyaz, S. Veselov, E. Golovin, I. Bataev, A. Nikulina, M. Golkovskiy, Boride coatings structure and properties, produced by atmospheric electron-beam cladding, Adv. Mater. Res. Vol. 287-290 (2011) 26-31.

DOI: 10.4028/www.scientific.net/amr.287-290.26

[2] D.O. Mul, E.A. Drobyaz., I.K. Chakin, V.V. Samoylenko, V.S. Lozhkin, R.A. Dostovalov, Structure and properties of steel under non-vacuum electron-beam welding deposition of titanium, tantalum, molybdenum and graphite powders, Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) 60 (2013).

[3] D.O. Mul, N.S. Belousova, D.S. Krivezhenko, L.I. Shevtsova, A. A Losinskaya, Electron beam cladding of powder mixtures containing titanium and tantalum on specimens of steel 40Х, Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) 63 (2014).

[4] V.N. Gadalov, N.A. Korenevsky, D.N. Romanenko, V.V. Serebrovsky, T.N. Rozina, Restoration and hardening of the hammer kormodrobilok plasma coatings with subsequent reflow oven, Proceedings of the Southwestern State University 4 (2012) 132-136.

[5] L.G. Voroshnin, F.I. Panteleenko, V.M. Konstantinov, Teoriya I praktika polucheniya zashitnyh pokririy s pomoshyu HTO, second ed., FTI, 2001. (in Russian).

[6] O.G. Lenivtseva, I. A Bataev, N.S. Belousova, E.D. Golovin, T.A. Zimoglyadova, Аtmospheric electron-beam overlay welding of carbon containing powder mixtures onto technically pure titanium VT1-0, Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) 61 (2013).

[7] I.A. Bataev, A.A. Bataev, A.A. Ruktuev, T.V. Zhuravina, N.K. Kuksanov, R.A. Salimov, V.A. Bataev, M.G. Golkovski, Atmospheric electron-beam surface alloying of titanium with tantalum, Mater. Sci. Eng., A. 578 (2013) 310–317.

DOI: 10.1016/j.msea.2013.04.103

[8] I.A. Bataev, A.A. Bataev, M.G. Golkovski, D.S. Krivizhenko, A.A. Losinskaya, O.G. Lenivtseva, Structure of surface layers produced by non-vacuum electron beam boriding, Appl. Surf. Sci. 284 (2013) 472– 481.

DOI: 10.1016/j.apsusc.2013.07.121

[10] N.V. Koptseva, M.P. Barishnikov, U.U. Efimova, S.V. Zotov, Research of the surface with abrasive wear thermal sprayed Ni – Cr – Si – B – C coatings, Journal of Samara State Technical University. Ser. Physical and Mathematical Sciences 39 (2005).

[11] L. Zhenyu, G. Wei, and L. Meishuan, Cyclic Oxidation of Sputter-Deposited Nanocrystalline Fe - Cr - Ni - Al Alloy Coatings, Oxid. Met. Vol. 51 (1999) 403-419.