Strength of coatings - A new concept of mechanical evaluation on the basis of simulated fracture behavior

Shoji Kamiya, Shingo Amaki, Hiroyuki Hanyu, Kiichiro Yamanobe, Masumi Saka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Mechanical properties of physically vapor deposited (PVD) CrN coatings was examined from a new aspect, where strength-related fundamental parameters were evaluated independently with the aid of numerical simulation. Films were quite brittle with an interface tougher than the films. Yield strength was also obtained. Simulation of indentation test revealed that the apparent hardness could be larger by up to 33% with the residual stress level as large as the yield strength.

Original languageEnglish
Pages (from-to)876-880
Number of pages5
JournalSurface and Coatings Technology
Volume200
Issue number1-4 SPEC. ISS.
DOIs
Publication statusPublished - 2005 Oct 1

Keywords

  • Mechanical property
  • PVD hard coatings
  • Residual stress
  • Toughness
  • VAMAS-TWA22
  • Yield strength

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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