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 language | English |
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Pages (from-to) | 110-117 |
Number of pages | 8 |
Journal | International Journal of Refractory Metals and Hard Materials |
Volume | 51 |
Early online date | 14 Mar 2015 |
DOIs | |
Publication status | Published - Jul 2015 |
Keywords
- Boron carbide
- Tungsten carbide
- Friction
- Wear rate
- Wear mechanisms
- Tribology