An investigation of the tribological potential of TiN, CrN and TiN + CrN physical vapor deposited coatings in machine element applications

Y. L. Su, J. S. Lin

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24 Citations (Scopus)

Abstract

This study investigates, through wear testing, the potential for carburized and tufftrided surface treated steels and the TiN, CrN and TiN + CrN physical vapor deposited (PVD) surface treatments to be used in the screw and rollers of the variable lead screw transmission mechanism (VLSTM). Indentation test results reveal that the thicker the PVD CrN coating, the lower is its adhesive strength, with the desired coating thickness being 10 μm. In general, all sliding pairs possess the best wear resistance under cutting fluid lubrication. Surface treated steels (upper moving specimen) paired with PVD coated parts possess very poor wear resistance under base oil lubrication, even worse than under dry wear. Suitable sliding pairs for VLSTM applications include: surface treated steels paired with either SKH51 or PVD coated specimens under cutting fluid lubrication; PVD coated specimens paired with SKH51 specimens under cutting fluid lubrication; and PVD coated specimens paired with PVD coated specimens under base oil and cutting fluid lubrication.

Original languageEnglish
Pages (from-to)45-53
Number of pages9
JournalWear
Volume170
Issue number1
DOIs
Publication statusPublished - 1993 Nov 15

All Science Journal Classification (ASJC) codes

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

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