Tribological properties of boron carbide in sliding against WC ball

Research output: Contribution to journalArticlepeer-review

Authors

  • J. K. Sonber
  • P. K. Limaye
  • T.S.R.Ch Murthy
  • K. Sairam
  • A. Nagaraj
  • And 3 others
  • N. L. Soni
  • R. J. Patel
  • J. K. Chakravartty

Colleges, School and Institutes

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).

Details

Original languageEnglish
Pages (from-to)110-117
Number of pages8
JournalInternational Journal of Refractory Metals and Hard Materials
Volume51
Early online date14 Mar 2015
Publication statusPublished - Jul 2015

Keywords

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