Abstract
The experimental data on the influence of irradiation modes by high-current pulsed electron beams (HEBs) on the ablation kinetics of the surface layer of a compressor blade made of steel EP866Sh and NiCrAlY protective coating on turbine blades of the gas-turbine engine made of ZhS26NK alloy are analyzed. It is shown that microsecond HEB is a highly efficient tool for repairing compressor and turbine blades. The application of HEB offers the opportunity to remove surface layers of coatings on turbine blades from 5 to 10 μm thick which were damaged during operation for one pulse at an energy density of 50–55 J/cm2. The thickness of surface layers of compressor blades made of steel EP866Sh removed for the pulse at energy density of 48–50 J/cm2 is 7 μm.
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Original Russian Text © V.A. Shulov, V.I. Engel’ko, A.N. Gromov, D.A. Teryaev, O.A. Bytsenko, G.G. Shirvan’yants, 2014, published in Izvestiya VUZ. Poroshkovaya Metallurgiya, 2014, No. 1, pp. 43–49.
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Shulov, V.A., Engel’ko, V.I., Gromov, A.N. et al. Application of high-current pulsed electron beams for the restoration of operational properties of the blades of gas-turbine engines. Russ. J. Non-ferrous Metals 56, 333–338 (2015). https://doi.org/10.3103/S1067821215030190
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DOI: https://doi.org/10.3103/S1067821215030190