Abstract
The combined processes of plasma nitriding and cathodic arc deposition of (Ti,Cr,Nb)CN coatings were applied to HSS substrates. The nitrided layers, obtained in a mixture of H2 (70%) and N2 (30%) at two different temperatures (480°C and 510°C), were examined for the microhardness depth profiles. Characterization of the duplex coatings was performed by investigating elemental and phase composition, texture, hardness, friction and wear. XRD and XPS analyses revealed the formation of a mixture of a carbonitride fcc solid solution, in a dominant proportion, and metallic chromium. The film hardness was measured to be ~34GPa. The duplex (Ti,Cr,Nb)CN coatings exhibited superior tribological behavior as compared to both nitrided layers and non-duplex coatings.
Original language | English |
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Journal | Surface and Coatings Technology |
Volume | 205 |
Issue number | SUPPL. 2 |
DOIs | |
Publication status | Published - 25 Jul 2011 |
Externally published | Yes |
Keywords
- (Ti,Cr,Nb)CN thin films
- Duplex treatment
- Microstructural and mechanical properties
- Wear resistance
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry