Mechanical properties of molybdenum coated with titanium carbide film

T. Shikama, H. Shinno, M. Fukutomi, M. Fujitsuka, M. Okada

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

TiC-coated molybdenum is mechanically tensile tested. The 6 Μm thick TiC-coated molybdenum has a higher 0.2% proof strength with a slight decrease in uniform and rupture elongation than the uncoated one. This strengthening effect of the TiC coating can be explained by the constrained effect of the high strength TiC film. The 1.2 Μm thick TiC-coated molybdenum starts its plastic deformation at a lower stress than the uncoated one. Also, the coating makes the stress-strain curve more smooth. These effects are attributed to the surface effect, namely, that the interface between the molybdenum substrate and the strong and brittle TiC film acts as a strong dislocation source. The compressive stress in the TiC film will also help the start of plastic deformation at lower external stresses.

Original languageEnglish
Pages (from-to)3092-3098
Number of pages7
JournalJournal of Materials Science
Volume18
Issue number10
DOIs
Publication statusPublished - 1983 Oct 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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