Effect of deposition parameters on TiAlN coating using pulsed DC CFUBMS

P. Mandal, B.D. Beake, S. Paul

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Abstract

This paper aims to investigate the parametric effect of deposition and target frequency on the mechanical properties and machining performance of the TiAlN coatings deposited in a dual cathode pulsed dc CFUBMS system. Coating composition is not directly dependent on deposition temperature or target frequency individually but increase in both the parameters has led to Al rich coating. The coating thickness is influenced by target frequency only. The fatigue fracture resistance of the TiAlN coating has been evaluated by the nanoimpact test and it has been found to be at least as good as commercial Ti0.5Al0.5N coating deposited on cemented carbide. In dry machining SAE 1037 steel, it has been observed that the resistance to crater wear is influenced by target frequency. Simultaneous increase in the deposition temperature and target frequency has provided improved resistance to crater wear due to their favourable influence on the coating thickness and Al percentage.
Original languageEnglish
Pages (from-to)287-295
Number of pages9
JournalSurface Engineering
Volume29
DOIs
Publication statusPublished - 12 Nov 2013

Keywords

  • TiAIN coating
  • CFUBMS
  • pulsed DC
  • machining

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