Effect of magnetic treatment on the microstructure and abrasive resistance of WC–Co detonation-sprayed coatings

Effect of magnetic treatment on the microstructure and abrasive resistance of WC–Co detonation-sprayed coatings

The effect of magnetic field on the phase composition and mechanical properties of VK-9 and VK-15 hardmetal detonation-sprayed coatings is studied. It is established that the magnetic field induces phase and structural transformations in sprayed coatings, such as reinforcement of the Co matrix due t...

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Veröffentlicht in:Powder metallurgy and metal ceramics 2012-09, Vol.51 (5-6), p.345-352
Hauptverfasser: Oliker, V. E., Gridasova, T. Ya, Timofeeva, I. I., Grechishkin, E. F., Gavrilenko, A. G.
Format: Artikel
Sprache:eng
Schlagworte:
Abrasion resistance
Cemented carbides
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coatings
Coatings industry
Cobalt
Composites
Detonation
Dissolution
Glass
Magnetic fields
Magnetization
Materials Science
Metallic Materials
Natural Materials
Powder metallurgy
Transformations
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Zusammenfassung:The effect of magnetic field on the phase composition and mechanical properties of VK-9 and VK-15 hardmetal detonation-sprayed coatings is studied. It is established that the magnetic field induces phase and structural transformations in sprayed coatings, such as reinforcement of the Co matrix due to the dissolution of WC in Co and the formation of W x Co y C z binary carbides. Magnetic treatment reduces residual internal stresses in the coating, decreases the amorphicity of its structure, and increases abrasive wear resistance.
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-012-9439-9