Thermal stability and wear resistance of hard TiN/TiCN coatings on plasma nitrided PH15-5 steel

I. Zukerman, A. Raveh, H. Kalman, J. E. Klemberg-Sapieha, L. Martinu

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

In the present work, we performed a case study of the wear resistance of 3 μm thick film systems consisting of TiCN single-layer and TiN/TiCN double-layer structures deposited by electron beam evaporation onto plasma-nitrided PH15-5 steel. We particularly focused on the wear resistance of the duplex-treated (nitriding + deposition) coatings before and after annealing at 1123 ± 3 K using a ball-on-disk tribometer. We found that the plasma-nitrided layer prepared in a dual-mode microwave-radiofrequency discharge improved the wear resistance by nearly one order of magnitude compared to untreated steel (wear volume of 0.9 ± 0.2 × 10-6 mm3 compared to 8.7 ± 0.2 × 10-6 mm3). In addition, the experiments showed that the nitrided-layer between the steel and the hard coating acts as a diffusion barrier which maintains the wear resistance of the duplex-treated coatings composed of TiCN or TiN/TiCN layers.

Original languageEnglish
Pages (from-to)1249-1252
Number of pages4
JournalWear
Volume263
Issue number7-12 SPEC. ISS.
DOIs
StatePublished - 10 Sep 2007

Keywords

  • Duplex treatment
  • Hard coating
  • Plasma nitriding
  • Wear resistance

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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