| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advancements in Lightweight Composites, Materials & Alloys
|
| Presentation Title |
Effect of Dispersion Technique and Applied Load on the Dry Sliding Wear Behavior of Combined Stir-Squeeze-Cast AA6061-0.5 wt. % CNT Composite at Both Room Temperature and Elevated Temperature |
| Author(s) |
Sukanta Sarkar, Bidipta Dam, Ujjal Dey, Cheruvu Siva Kumar, Indranil Manna, Siddhartha Roy |
| On-Site Speaker (Planned) |
Sukanta Sarkar |
| Abstract Scope |
The wear behaviour of AA6061-0.5wt.% CNT composite samples manufactured by combining stir-casting and squeeze-casting have been investigated. The composites were produced utilizing three distinct dispersion techniques: direct mixing of CNT (DD), a mixture of Al and CNT pellet drop (PD), and direct mixing of ultrasonicated CNT (USDD). The PD composite exhibits the most minimal specific wear rate (SWR) and coefficient of friction (COF) due to homogenous distribution of CNTs. Wear mechanisms of various dispersion techniques were compared with AA6061. Additionally, the impact of load on the wear behaviour has been examined exclusively on the PD sample. AA6061 exhibited enhanced tribological efficacy in the presence of CNTs, even when subjected to elevated temperatures of 150˚C. Raman spectroscopy and a comprehensive examination of the morphologies of CNTs on the worn surface indicate that they function as a solid lubricant, thereby reducing material loss and COF during wear. |