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 / Bolelli, G.; Lusvarghi, Luca; PIGHETTI MANTINI, F.; Pitacco, F.; Volz, H.. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 202:18(2008), pp. 4382-4386. [10.1016/j.surfcoat.2008.04.013]

Enhanced tribological properties of PECVD DLC coated thermally sprayed coatings

G. BOLELLI;LUSVARGHI, Luca;
2008

Abstract

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.
2008
202
18
4382
4386
Enhanced tribological properties of PECVD DLC coated thermally sprayed coatings / Bolelli, G.; Lusvarghi, Luca; PIGHETTI MANTINI, F.; Pitacco, F.; Volz, H.. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 202:18(2008), pp. 4382-4386. [10.1016/j.surfcoat.2008.04.013]
Bolelli, G.; Lusvarghi, Luca; PIGHETTI MANTINI, F.; Pitacco, F.; Volz, H.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/609745
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 9
social impact