Some Properties of WC-Co Cemented Carbide Coated by PVD Process with Titanium Carbonitride Having Different C/N Ratios

Hisashi Suzuki, Hideaki Matsubara, Akira Matsuo, Kunio Shibuki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The titanium carbonitrides, Ti(C, N), with different C/N ratios were coated on HIP-treated WC-Co substrates by PVD process at 773 K. The transverse-rupture strength of coated specimens and the properties such as hardness and resistance to oxidation of coated layer were studied in relation to C/N ratios. The hardness of coated layer decreased with decreasing C/N ratio. The strength of coated specimens was not almost affected by C/N ratios. The abrupt decrease in the strength was observed, when the specimens were annealed at temperature of about 1173K. This showed that each layer was lacking in the thermal stability. It was found that the resistance to oxidation of the layer varied according to C/N ratios, and it became worst at C/N ratio of 2/8. A further study on this subject, however, is needed.

Original languageEnglish
Pages (from-to)205-209
Number of pages5
Journaljournal of the japan society of powder and powder metallurgy
Volume32
Issue number5
DOIs
Publication statusPublished - 1985
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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