Study of erosion behaviour of conventional and nanostructured WC-12Co coatings sprayed by atmospheric plasma
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Other documents of the author: Bonache Bezares, Victoria; Salvador Moya, María Dolores; García, J. C.; García, V.; Sánchez-Vilches, Enrique; Vicent Cabedo, Mónica
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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Title
Study of erosion behaviour of conventional and nanostructured WC-12Co coatings sprayed by atmospheric plasmaAuthor (s)
Date
2010Publisher
Trans Tech PublicationsISSN
1013-9826Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/submittedVersionSubject
Erosion resistance | Nanostructured powde | Plasma spraying | Resistant behaviour | WC-Co coating | Resistencia a la erosión | Polvo nanoestructurado | Pulverización de plasma | Comportamiento resistente | Revestimiento WC-Co | Protective coatings | Carbides--Fatigue | Revestiments protectors | Carburs--Fatiga
Abstract
Thermal sprayed WC-Co coatings are used extensively to enhance the wear resistance of a wide range of engineering components. In this paper, erosive resistance of plasma atmospheric sprayed WC-12Co coatings has been ... [+]
Thermal sprayed WC-Co coatings are used extensively to enhance the wear resistance of a wide range of engineering components. In this paper, erosive resistance of plasma atmospheric sprayed WC-12Co coatings has been evaluated. Solid particle erosion tests were conducted on these coatings at different angles of impact with silica and alumina abrasives of size 250 µm. Coatings have been deposited by using micrometric and nanometric agglomerated powders, employing H2 and He as plasmogen gas. In order to determine the erosion regime (ductile or brittle), the influence of impact angle on the erosion rate has been studied. Optical microscope and FESEM have been used to analyze the eroded surface. The influence of the plasmogen gas and the powder employed on the erosive behaviour of the coating has been evaluated. An attempt to connect the erosive behaviour with mechanical properties and microstructure has been made. Hardness has been determined by means of several measurements of Vickers microhardness; fracture toughness has been estimated through indentation method. Identification of phases has been made by means of X Ray diffraction [-]
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Key engineering materials, vol. 423 (2010), pp 35-40Rights
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info:eu-repo/semantics/openAccess
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