Structure of duplex CrN/NbN coatings and their performance against corrosion and wear

  • Savisalo, T.
  • Lewis, D. B.
  • Luo, Q.
  • Bolton, M.
  • Hovsepian, P. E.
Publication date
July 2007
Publisher
Elsevier BV
ISSN
0257-8972
Language
English
Citation count (estimate)
16

Abstract

In tribological applications the coating-substrate combination can be considered as a system, since both greatly influence the properties of that affect the tribological performance. Further, it is often desirable that both high wear resistance and corrosion resistance can be achieved even when low cost and easily machineable substrate materials are considered. Duplex surface treatment combining pulse plasma nitriding and PVD coating can provide solution for excellent wear and corrosion resistance for low alloy and constructional steels. In this work three different pulse plasma nitriding processes were carried out prior to the CrN/NbN PVD coating to attain high surface hardness and enhanced load bearing behaviour for S154 high strength con...

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