Size prediction of particles caused by chipping wear of hard coatings

Kun Zhou*, Leon M. Keer, Q. Jane Wang, Diann Y. Hua

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Hard coatings under cyclic contact loading are often subject to failure caused by chipping or spalling wear. A fracture-based model is developed to predict such wear damage and shows that particles are detached from the coating surface due to cracking, as observed in experiments. Particle detachment is found to depend on the depths of pre-existing cracks, the positions of the cracks relative to major surface asperities, and loading conditions. The model successfully predicts the size scale of the detached particles.

Original languageEnglish (US)
Pages (from-to)1203-1206
Number of pages4
JournalWear
Volume271
Issue number7-8
DOIs
StatePublished - Jul 18 2011

Keywords

  • Chipping
  • Coating
  • Fracture
  • Spalling
  • Wear

ASJC Scopus subject areas

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

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