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Fracture of TiC/a-C(:H) Coatings in Friction Contact

  • E. Torskaya
  • A. Mezrin
  • Juan Carlos Sánchez-López
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

Carbon-based coatings have excellent mechanical, electrical, and chemical properties. The tribological performance of these compounds is difficult to predict as it depends on a nonlinear interaction of different parameters as testing conditions, surrounding atmosphere, nature of the counterfaces, and film properties, so that a careful study of the structure–properties correlation is needed. This study is focused on the difference in tribological properties and fracture of the coatings, which are designed using two different types of a magnetron sputtering technology: high power impulse (HiPIMS) (pulsed) and direct current (DC) (non-pulsed). The work includes friction tests, calculation of internal stresses and microscopic study of the sample surfaces before and after friction, and analysis of chemical composition of surface layers and wear particles. The difference in friction and wear mechanisms depending on the applied technique is analyzed. The results showed that friction coefficient against 100Cr6 balls and internal stresses are greater for DC coatings, although they have a better resistance to brittle crack formation.

Keywords

Coatings Friction contact Modeling Fracture 

Notes

Acknowledgements

The authors are grateful to the Leverhulme Trust for financial support of the collaboration between the authors within the CARBTRIB International Network. This work was financially supported by the Federal Agency of Scientific Organizations (Reg. No. AAAA-A17-117021310379-5). The theoretical study was partially supported by the Russian Foundation for Basic Research (project No. 16-08-00749). The authors are also grateful to D. Martinez-Martinez and A. Patelli who participated in the film elaboration and characterization.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • E. Torskaya
    • 1
  • A. Mezrin
    • 1
  • Juan Carlos Sánchez-López
    • 2
  1. 1.Ishlinsky Institute for Problems in Mechanics of RASMoscowRussia
  2. 2.Instituto de Ciencia de Materiales de Sevilla (CSIC-US)SevilleSpain

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