Characterisation of microstructure and mechanical properties of cermets at micro- and nanoscales

Irina Hussainova, Maksim Antonov, Iwona Jasiuk, Xiangdong Du

Research output: Contribution to journalArticle

Abstract

: High resolution measurements of mechanical properties of the constituent phases of multi-phase materials are of immerse importance in design of new composites. In this study, the nanoindentation, X-ray analysis and microstructural SEM investigations have been used to reveal the properties and structural features of ceramic - metal composites involving chromium carbide based cermets with different additives (Mo and Cu) in nickel binder. The additives influence microstructural parameters such as grain size and residual stresses; however, nanohardness and Young's moduli of constituent phases remain less affected. Phase - specific mechanical properties are measured and correlated with bulk behaviour. Furthermore, hardness of the binder metal is found to be higher in cermet as compared to the bulk hardness of metal.

Original languageEnglish (US)
Pages (from-to)58-74
Number of pages17
JournalInternational Journal of Materials and Product Technology
Volume40
Issue number1-2
DOIs
StatePublished - 2011

Keywords

  • Cermets
  • Hardness
  • Microstructure
  • Modulus of elasticity
  • Nanoindentation

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Safety, Risk, Reliability and Quality

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