Tribological properties of boron carbide in sliding against WC ball

  • J. K. Sonber
  • , P. K. Limaye
  • , T.S.R.Ch Murthy
  • , K. Sairam
  • , A. Nagaraj
  • , N. L. Soni
  • , R. J. Patel
  • , J. K. Chakravartty

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

Friction and wear properties of the hot pressed boron carbide have been investigated at different loads and frequencies under reciprocative sliding, using a counter body of cemented tungsten carbide (WC–Co) ball. Coefficient of friction, wear volume and wear rate were evaluated. Wear mechanism has been analysed by using optical microscopy, SEM-EDS and stylus profilometer techniques. Low coefficient of friction (COF) was measured as 0.15 at 10 N load and 10 Hz frequency. Load enhancement from 3 to 10 N at 10 Hz frequency led to a reduction of COF from 0.20 to 0.15. Specific wear rate of boron carbide has been evaluated in the order of 10− 6 mm3/Nm. Both abrasive and tribo-chemical reaction wear mechanisms are observed on the worn surface of boron carbide (flat).
Original languageEnglish
Pages (from-to)110-117
Number of pages8
JournalInternational Journal of Refractory Metals and Hard Materials
Volume51
Early online date14 Mar 2015
DOIs
Publication statusPublished - Jul 2015

Keywords

  • Boron carbide
  • Tungsten carbide
  • Friction
  • Wear rate
  • Wear mechanisms
  • Tribology

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