Abstract
The results of electron-beam surfacing in air of protective coatings by a low-energy (120 keV) electron beam produced by an electron gun with a plasma emitter are presented. The gun is mounted on an industrial robotic manipulator KUKA, which allows the electron beam to be moved to the atmosphere along a given path without electromagnetic sweep. The combined (self-propagating high-temperature synthesis and electron-beam surfacing) method for obtaining coatings from reaction mixtures of TiO2: 2.1C and TiO2: 0.3Cr2O3: 3.3С is implemented using this setup. The optimum composition of the reaction mixtures and the deposition regimes are determined by thermodynamic modeling using the TERRA program. The obtained coatings with a thickness of 120–200 μm have a microhardness of 12 GPa. The coatings and the transition layer are established to have good heat resistance up to 900°C. Noticeable changes in the weight characteristics of coatings occur at above 1000°C.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Burakowski, T. and Wierzchon, T., Surface Engineering of Metals: Principles, Equipment, Technologies, Boca Raton: CRC Press, 1998.
Panin, V.E., Belyuk, S.I., Durakov, V.G., Pribytkov, G.A., and Rempe, N.G., Electron beam vacuum surfacing: Equipment, technology and properties of coatings, Weld. Int., 2000, vol. 14, no. 7, pp. 580–584.
Salimov, R.A., High energy electron accelerators for industrial applications, Phys.-Usp., 2000, vol. 43, no. 2, pp. 189–192.
Mul’, D.O., Belousova, N.S., Krivezhenko, D.S., Shevtsova, L.I., and Losinskaya, A.A., Electron-beam cladding of powder mixtures containing titanium and tantalum on specimens of 40X steel, Obrab. Met. (Tekhnol., Oborud., Instrum.), 2014, vol. 63, no. 2, pp. 117–126.
Poletika, I.M., Golkovskii, M.G., Borisov, M.D., Salimov, R.A., and Perovskaya, M.V., Fusion of hardening coatings in a relativistic electron beam, Fiz. Mezomekh., 2005, vol. 8, suppl., pp. 129–132.
Aksenov, A.I., Kornilov, S.Yu., Motorin, M.P., and Rempe, N.G., An apparatus based on a plasma emitter for electron-beam transportation to air, Instrum. Exp. Techn., 2017, vol. 60, no. 2, pp. 233–236.
Kornilov, S.Yu., Rempe, N.G., and Shidlovskiy, S.V., System for transporting an electron beam to the atmosphere for a gun with a plasma emitter, Tech. Phys., 2016, vol. 61, no. 6, pp. 841–848.
Gushenets, V.I., Oks, E.M., Yushkov, G.Yu., and Rempe, N.G., Current status of plasma emission electronics: I. Basic physical processes, Laser Part. Beams, 2003, vol. 21, no. 2, pp. 123–138.
Kornilov, S., Rempe, N., Smirnyagina, N., Khaltanova, V., and Lapina, A., Thermodynamic modeling of high temperature synthesis of the titan and chrome carbides on an alloyed steel for electron-beam melting of modifying coatings, MATEC Web Conf., 2016, vol. 79, art. ID 01033. https://doi.org/10.1051/matecconf/20167901033.
Shiryaev, A., Thermodynamics of SHS processes: an advanced approach, Int. J. Self-Propag. High-Temp. Synth., 1995, no. 4, pp. 351–362.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © S.Yu. Kornilov, N.G. Rempe, N.N. Smirnyagina, 2017, published in Fizika i Khimiya Obrabotki Materialov, 2017, No. 5, pp. 26–35.
Rights and permissions
About this article
Cite this article
Kornilov, S.Y., Rempe, N.G. & Smirnyagina, N.N. Nonvacuum Surfacing of Protective Coatings Using a Low-Energy Electron Beam. Inorg. Mater. Appl. Res. 9, 464–471 (2018). https://doi.org/10.1134/S2075113318030176
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S2075113318030176