Abstract
Duplex coatings consisting of nitrided HSS steel substrates and (Zr,Al)CN layers were produced. Plasma nitriding of the steel was carried out for 3 h in an atmosphere of N 2 (30%) and H 2 (70%) gases, at 480°C. The (Zr,Al)CN coatings were deposited by cathodic arc technique on the nitrided steel surfaces. For the nitrided layer, a thickness and surface microhardness of about 60 μm and 1580HV0.02, respectively, were measured. The (Zr,Al)CN coatings, with a highly over stoichiometric composition ((C+N)/(Zr+Al) ~ 2) and single solid solution nanostructure, had hardness of - 36 GPa and a thickness of - 4.8 μm. The duplex coatings produced were found to exhibit superior friction and wear performance when compared to plasma nitrided substrates.
| Original language | English |
|---|---|
| Pages (from-to) | 646-652 |
| Number of pages | 7 |
| Journal | Journal of Optoelectronics and Advanced Materials |
| Volume | 14 |
| Issue number | 7-8 |
| Publication status | Published - 1 Jul 2012 |
| Externally published | Yes |
Keywords
- (Zr
- Al)CN thin films
- Duplex treatment
- Mechanical properties
- Wear resistance
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering