| Autor: |
Sudheer, Renumala, Reddy, M. Venkata Krishna, Joshy, Jino, Kuriachen, Basil, Joy, M. L. |
| Zdroj: |
Transactions of the Indian Institute of Metals; Sep2023, Vol. 76 Issue 9, p2363-2375, 13p |
| Abstrakt: |
In the present work, powder-mixed electrical discharge machining (PMEDM) experiments of Ti6Al4V alloy with molybdenum disulfide (MoS2) powders at three levels of concentrations and at three levels of pulse on time (Ton) have been performed. The maximum material removal rate observed was 0.006966 gm/min with the MoS2 powder at 2 gm/L powder concentration, 15 µs Ton, and the minimum tool wear rate (TWR) was 0.000147 gm/min at 3 gm/L and 15 µs Ton. Pin-on-disk experiments were carried out at 50 N load and 1 m/s sliding velocity. MoS2 powder specimens had shown more wear resistance and less coefficient of friction. The wear resistance of Ti6Al4V after PMEDM using MoS2 powder increased by 40.143% at 2 gm/L powder concentration and 40 µs Ton. The tribological performance was enhanced by using powders because these powders act as self-lubricant. Abrasive and delamination wear was the predominant wear mechanisms observed on the worn surface. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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