| Autor: |
K. Sairam, T.S.R.Ch. Murthy, R. J. Patel, P.K. Limaye, A. Nagaraj, N.L. Soni, J.K. Chakravartty, J.K. Sonber |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
International Journal of Refractory Metals and Hard Materials. 51:110-117 |
| ISSN: |
0263-4368 |
| Popis: |
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). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect