An Investigation Of Ion-plasma Coatings Solid Particle Erosion Resistance At High-speed Impact Of Gas-abrasive Flow
Author(s)
A. F. Mednikov, G. V. Kachalin, A. V. Ryzhenkov, A. B. Tkhabisimov
Abstract
The paper is devoted to experimental investigation of ion-plasma coatings solid particle erosion resistance at high-speed impact of gas-abrasive flow. The relevance of the investigation is stipulated by the still unsolved problem of steam turbines first stages’ blades protection against solid particle erosion. The results of solid particle erosion investigations of three types of ion-plasma coatings (Ti-TiAlN, Cr-CrC, NiCrC-CrC), formed on samples of blade steels 20Kh13 and 15Kh11MF, are shown. Comparative tests showed the effectiveness of applying NiCrC-CrC and Cr-CrC coatings on blade steels 20Kh13 and 15Kh11MF for solid particle erosion protection.
Keywords
rotor and stator blades, steam turbines, compressors, high-speed gas-abrasive flow, solid particle erosion, ion-plasma technologies, protective coatings, steel blade, experimental stand
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