Plasma processing for enhanced wear and corrosion performance

A. Matthews, A. Leyland

Research output: Contribution to journalConference articlepeer-review

Abstract

The benefits of plasma-assisted physical vapour deposition (PAPVD) techniques are now well established, particularly in the metal cutting tool sector - where TiN coatings, in particular, are in increasingly widespread use. Recent research attention has focussed on improving the effectiveness and applicability of plasma-based methods, for example by the optimisation of structure and composition, or via substrate surface or interface enhancement. The latter refers to techniques such as plasma diffusion treatment or interlayer coating modification. Here we report on recent work carried out to achieve these aims through the investigation of plasma diffusion of species such as C and N and hard-coating interlayering with Ti, Cr, and Ni. By these means we have shown that the range of applications of PAPVD can be considerably extended. In particular, the new plasma diffusion and interlayering techniques which are now under development widen the range of suitable substrate materials, thereby providing the possibility to displace many traditional coating technologies - some of which are under increasing pressure from more stringent environmental legislation.

Original languageEnglish
Pages (from-to)497-508
Number of pages12
JournalMaterials Science Forum
Volume163-6
Issue numberpt 2
Publication statusPublished - 1 Dec 1994
EventProceedings of the 2nd ASM Heat Treatment and Surface Engineering Conference. Part 1 (of 2) - Dortmund, Ger
Duration: 1 Jun 19933 Jun 1993

Keywords

  • Carbon
  • Chromium
  • Coatings
  • Composition
  • Deposition
  • Diffusion
  • Nickel
  • Nitrogen
  • Optimization
  • Plasmas
  • Structure (composition)
  • Titanium

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