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Corrosion of SUS 310 Steels at 600-800°C in N₂/H₂O/H₂S Gases
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 752-753Deposition and Characterization of CoCrAlY...

Deposition and Characterization of CoCrAlY Coatings by Multi-Chamber Detonation Sprayer

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Abstract:

In this study, a multi-chamber detonation sprayer (MCDS) was applied for deposition of Co-Cr-Al-Y powder coatings (200-250 mm thick) on nickel base superalloy JS6U (Russia). Powder Co-25Cr-11Al-1Y (d(0.1): 6.6 μm, d(0.5): 62.7 μm, d(0.9): 123,4 μm) was used to deposit of a coatings. The coatings microstructures and phase compositions were characterized using SEM, OM and XRD techniques. Measurement of the microhardness of samples was done with a micro-hardness tester DM – 8B using a Vickers’s indenter with load on of 0.1 N. It was established that MCDS has provided the conditions for formation of a dense layer with porosity 0.05% and microhardness 600±50 HV_0.1.

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Periodical:

Applied Mechanics and Materials (Volumes 752-753)

Pages:

11-16

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.752-753.11

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Online since:

April 2015

Authors:

M.G. Kovaleva*, Yu.N. Tyurin, N.J. Vasilik, O.V. Kolisnichenko, M.S. Prozorova, M.Yu. Arseenko, V.V. Sirota, I.A. Pavlenko

Keywords:

Coating, Detonation, Hardness, Microstructure, Porosity, Powder, Sprayer

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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