The Transverse-Rupture Strength of Ti(C, N)-Mo2C-Ni Alloys Affected by Nitrogen Content and Particle Size

Hisashi Suzuki, Hideaki Matsubara, Takeshi Saitoh

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The room temperature transverse-rupture strength (TRS) of nitrogen contained cermets was studied in relation to the nitrogen content and particle size. The TiC-, TiC0.7N0.3- and TiC0.5N0.5- 10.0 vol%Mo2C-16.4 vol%Ni alloys HIP-treated and then resintered were used as the specimens. The resintering process employed here was to eliminate the nickel pools often developed in nitrogen contained alloys, when HIP-treated. The TRS of the nitrogen contained alloys had a tendency to increase with decreasing particle size of carbonitrides, because the defect size decreased with the particle size. The intrinsic strength of the nitrogen contained alloys showed a maximum of about 6.0 GPa at the particle size of 1.0 pm. The TRS as high as 3.2 GPa or more was observed when the particle size became 0.5∼0.8 μm. It was suggested that the strength of nitrogen contained alloys could be increased further with decreasing defect size.

Original languageEnglish
Pages (from-to)305-310
Number of pages6
Journaljournal of the japan society of powder and powder metallurgy
Volume32
Issue number8
DOIs
Publication statusPublished - 1985 Jan 1
Externally publishedYes

ASJC Scopus subject areas

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

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