Pin-on-disc method is increasingly used to evaluate the tribological behavior of thin hard coatings. At present, ISO 18535 is the only standard applying to hard coatings tribology and it prescribes that investigations do not extend past the coating failure. This approach followed by many researchers is inadequate though for a complete characterization of a coated system. A novel approach is proposed in this paper, at a preliminary stage, to characterize coated systems thoroughly. Friction curves with a suitable shape are resorted to, so that two representative friction coefficients can be extracted, one before and the other after coating failure. Results with a PVD TiN coating are presented showing that it is possible with this coating to get friction curves with the desired shape in specific testing conditions.

A Novel Characterization Method for Hard Coatings: Preliminary Results with TiN / Mazza, Luigi; Goti, Edoardo; Mura, Andrea; Zhang, Bin (MECHANISMS AND MACHINE SCIENCE). - In: Advances in Italian Mechanism Science / Niola V., Gasparetto A.. - ELETTRONICO. - Cham : Springer, 2021. - ISBN 978-3-030-55806-2. - pp. 670-678 [10.1007/978-3-030-55807-9_75]

A Novel Characterization Method for Hard Coatings: Preliminary Results with TiN

Mazza, Luigi;Goti, Edoardo;Mura, Andrea;
2021

Abstract

Pin-on-disc method is increasingly used to evaluate the tribological behavior of thin hard coatings. At present, ISO 18535 is the only standard applying to hard coatings tribology and it prescribes that investigations do not extend past the coating failure. This approach followed by many researchers is inadequate though for a complete characterization of a coated system. A novel approach is proposed in this paper, at a preliminary stage, to characterize coated systems thoroughly. Friction curves with a suitable shape are resorted to, so that two representative friction coefficients can be extracted, one before and the other after coating failure. Results with a PVD TiN coating are presented showing that it is possible with this coating to get friction curves with the desired shape in specific testing conditions.
978-3-030-55806-2
978-3-030-55807-9
Advances in Italian Mechanism Science
File in questo prodotto:
File Dimensione Formato  
Paper IFIT 2020_LAST.pdf

Open Access dal 21/08/2021

Descrizione: Articolo principale
Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 544.08 kB
Formato Adobe PDF
544.08 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2846925