Application of high-current pulsed electron beams for the restoration of operational properties of the blades of gas-turbine engines
| Autor: | V. I. Engel’ko, V. A. Shulov, A.N. Gromov, O. A. Bytsenko, D. A. Teryaev, G. G. Shirvan’yants |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Turbine blade business.industry Scanning electron microscope Alloy Metals and Alloys Structural engineering engineering.material Surfaces Coatings and Films law.invention Microsecond Coating Mechanics of Materials law engineering Surface layer Irradiation Composite material business Gas compressor |
| Zdroj: | Russian Journal of Non-Ferrous Metals. 56:333-338 |
| ISSN: | 1934-970X 1067-8212 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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