Evaluation of Mechanical Properties and Tribological Behaviour of Self-lubricating Aluminium Matrix Hybrid Composites

摘要: In the present investigation, aluminium matrix-based hybrid composites are developed with the following set of combinations such as n-Al2O3 (2 wt%), n-Al2O3/MoS2 (2 wt% each), n-Al2O3/WS2 (2 wt% each), n-Al2O3/MoS2/WS2 (2%, 1%, 1%, respectively) by using simple and cost-effective stir casting route. Through this study, the self-lubricating aspects of the developed hybrid composites were ascertained. Microstructure and particulate distribution were studied using optical microscope and scanning electron microscope. XRD analysis was used to test the phase present and possible interaction of powders with aluminium matrix. Tensile specimens were made according to ASTM E8 standard and tested on Instron tensile testing machine. Vicker’s micro-hardness was tested by applying a load of 50 kgf for a dwell period of 15 s. Dry sliding wear tests were performed on pin-on-disc tribometer at room …