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COMPARISON OF MICROSTRUCTURE AND EROSION WEAR RESISTANCE OF HVOF AND COLD SPRAYED COATINGS

1 KESLOVÁ Anna
Co-authors:
1 HOUDKOVÁ Šárka 1 VOSTŘÁK Marek 1 ANTOŠ Jakub
Institution:
1 Research and Testing Institute, Tylova 46, Pilsen, 301 00, Czech Republic, EU
Conference:
29th International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 20 - 22, 2020
Proceedings:
Proceedings 29th International Conference on Metallurgy and Materials
Pages:
776-781
ISBN:
978-80-87294-97-0
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2020.3551
Published:
27th July 2020
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
620 views / 632 downloads
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Abstract

Thermally sprayed coatings are now used in many sectors of industry. In order to select the right material for a given application, it is necessary to know in detail the key properties of the coatings under consideration. Mechanical wear resistance is one of the most important and frequently sought properties. The aim of this work is to compare the properties of HVOF and Cold Sprayed coatings based on iron alloy (FeCrAlY), on tungsten carbide (WC-CoCr), on chromium carbide (Cr3C2-NiCr) and on Ni alloy (NiCr). The structure of coatings and their resistance to erosive wear by solid particles are analyzed and discussed. The microstructures of Cold sprayed coatings show better properties than HVOF sprayed coatings, especially in terms of porosity, oxides content and coatings homogeneity.

Keywords: HVOF, Cold Spray, microstructure, erosion wear

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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