Study of crack resistance of TiAlN coatings by scratch testing

A. R. Shugurov, A. A. Akulinkin, A. V. Panin, V. P. Sergeev, M. P. Kalashnikov, A. V. Voronov, Chin-Hsiang Cheng

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Scratch tests were performed to study failure mechanisms in TiAlN coatings deposited on substrates from steel 12Cr18Ni9Ti. It is shown that coating failure begins with crack generation at the apices of pile-ups formed along the scratch due to plastic ploughing of the substrate material. With further increase in indentation load the failure process is governed by the competition between tensile stresses behind the indenter arising due to friction force and stresses at the contact area periphery due to coating bending under normal load. Substrate pretreatment by Ti ion beams is shown to simultaneously increase the hardness and crack resistance of TiAlN coatings.

Original languageEnglish
Pages (from-to)185-192
Number of pages8
JournalPhysical Mesomechanics
Issue number2
Publication statusPublished - 2017 Apr 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces


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