Solid Particle Erosion Resistance of Protective Ion-Plasma Coating Formed on Full-Scale Objects Based on Modern Additive Technologies
A.B. Tkhabisimov1, A.F. Mednikov2, M.R. Dasaev3, G.V. Kachalin4, O.S. Zilova5
1A.B. Tkhabisimov, National Research, University MPEI, Moscow, Russia.
2A.F. Mednikov, National Research, University MPEI, Moscow, Russia.
3M.R. Dasaev, National Research, University MPEI, Moscow, Russia.
4G.V. Kachalin, National Research, University MPEI, Moscow, Russia.
5O.S. Zilova, National Research, University MPEI, Moscow, Russia
Manuscript received on 01 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 2295-2302 | Volume-8 Issue-7, May 2019 | Retrieval Number: G5950058719/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper presents the results of the research concerning solid particle erosion resistance of protective ion-plasma coating formed on experimental samples and compressor rotating blades of an energy gas turbine installation (full-scale objects). The coating was made using selective laser melting of titanium powder based on Ti-6Al-4V. The main characteristics (composition, hardness, structure) of the obtained titanium alloy, as well as of the considered chromium carbide-based coating (composition, hardness, structure, thickness) are considered. The work also presents a comparison of the results of solid particle erosion tests on experimental samples and material of coated and uncoated blades carried out under conditions close to real operating conditions. It has been established that the application of the proposed coating on the obtained full-scale object allows for at least two times longer duration of the incubation-transition period and reduces the steady-state rate of solid particle erosion. The obtained effect extends both to the concave and convex sides of the test blade with a specific difference their wear during metallographic studies.
Keyword: Additive Technologies, Blades, Compressor, Experimental Test, Metallography, Protective Coating, Samples, Solid Particle Erosion.
Scope of the Article: Advanced Manufacturing Technologies.