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[36774] Artykuł: Tribological properties of plasma and HVOF-sprayed NiCrBSi–Fe2O3 composite coatingsCzasopismo: Surface & Coating Technology Tom: 220, Zeszyt: Complete, Strony: 98-106ISSN: 0257-8972 Wydawca: ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND Opublikowano: 2012 Autorzy / Redaktorzy / Twórcy
Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 40 Klasyfikacja Web of Science: Article ![]() ![]() ![]() Keywords: Plasma spraying  HVOF  Solid lubricant  |
This paper presents the properties of plasma and HVOF thermally sprayed coatings obtained by blending the NiCrBSi and Fe2O3 powders. Although the blended powders differ in particle size, shape, and distribution, it is possible to obtain composite coatings with a NiCrBSi matrix containing iron oxides. Except for a different microstructure, plasma and HVOF coatings have a different phase composition. An addition of Fe2O3 powder in the mixture with NiCrBSi powder led to a significant increase in roughness of the coating sprayed both in a plasma and supersonic manner. The coefficient of friction, microhardness and roughness of the coatings was determined using an experimental design called PS/DS-P:24-1 program. The study shows that the HVOF-sprayed coatings had a lower coefficient of friction.