Evaluation of duplex (Zr,Al)CN coatings with improved tribological performance

C. Cotrut, A. Vladescu, V. Braic, M. Braic, M. Balaceanu, F. Miculescu

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 languageEnglish
Pages (from-to)646-652
Number of pages7
JournalJournal of Optoelectronics and Advanced Materials
Volume14
Issue number7-8
Publication statusPublished - 1 Jul 2012
Externally publishedYes

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

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