This research investigates the enhancement of the tribological properties of various thermally-sprayed coatings (APS Ni–50Cr, APS Al2O3–13%TiO2 and HVOF WC–17Co) on steel substrate, achieved through the deposition of a thin DLC-based film. Higher adhesive strength betweenthin films and thermally-sprayed coatings compared to the simple thin film/carbon steel system was found by scratch testing. Dry sliding ball-ondisktests performed under lower contact pressure conditions (5 N normal load, 6 mm diameter alumina ball) indicated a significant decrease inwear rates and friction coefficients of thermally-sprayed coatings when the thin DLC-based film is employed; little differences exist between thetribological behaviour of the various thin film/thermal spray coating systems and that of DLC-based film on carbon steel. Under higher contactpressure conditions (10 N normal load, 3 mm diameter alumina ball), the thin film/WC–Co system exhibited the best wear performance. Theseresults indicate the superior tribological performance of DLC/thermal spray coating systems, especially under severe contact conditions.
Enhanced tribological properties of PECVD DLC coated thermally sprayed coatings / G., Bolelli; Lusvarghi, Luca; F., PIGHETTI MANTINI; F., Pitacco; H., Volz. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 202/18(2008), pp. 4382-4386.
Data di pubblicazione: | 2008 |
Titolo: | Enhanced tribological properties of PECVD DLC coated thermally sprayed coatings |
Autore/i: | G., Bolelli; Lusvarghi, Luca; F., PIGHETTI MANTINI; F., Pitacco; H., Volz |
Autore/i UNIMORE: | |
Rivista: | |
Volume: | 202/18 |
Pagina iniziale: | 4382 |
Pagina finale: | 4386 |
Codice identificativo ISI: | WOS:000257520700012 |
Codice identificativo Scopus: | 2-s2.0-44349179758 |
Citazione: | Enhanced tribological properties of PECVD DLC coated thermally sprayed coatings / G., Bolelli; Lusvarghi, Luca; F., PIGHETTI MANTINI; F., Pitacco; H., Volz. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 202/18(2008), pp. 4382-4386. |
Tipologia | Articolo su rivista |
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