Investigating running-in behavior to understand wear behavior of ta-C coating with filtered cathodic vacuum arc deposition

Woo Young Lee, Takayuki Tokoroyama, Motoyuki Murashima, Noritsugu Umehara

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

In this study, to clarify running-in cycle and role of carbon transfer layer on wear, ta-C coatings were subjected to friction tests under 200 °C in air with a different sliding cycles. The steady state friction coefficient of 0.02 was obtained after finishing a running-in cycles approximately 2,000 cycles. During the steady state, wear rate of ta-C decreased with increasing number of cycles. Such the decrease of wear rate was explained by polished defects presented on surface and form carbon transfer layer on the counter-part material. The mechanism of those tribological properties was analyzed by Raman spectroscopy, scanning electron microscope observation and 3D measuring laser microscope.

Original languageEnglish
Pages (from-to)38-47
Number of pages10
JournalJurnal Tribologi
Volume23
Publication statusPublished - 2019

Keywords

  • Defect
  • FCVA
  • Ta-C coating
  • Tribological behavior

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