Tribological performance of Al5052/B₄C/Granite hybrid composites: machine learning prediction and multi-response optimization (opens in new tab)

This study investigates the sustainable wear performance of Al5052/B₄C/granite hybrid composites produced by the stir casting process. Wear tests were executed on a pin on disc by varying load from 20 N to 50 N and sliding speed from 2 m/s to 3 m/s to evaluate the specific wear rate (SWR) and coefficient of friction (COF). From the results, the lowest specific wear rate of 0.201 × 10⁻³ mm³/Nm was obtained at 20 N load, 2 m/s sliding speed, and 4 wt% granite reinforcement. SEM analysis of worn...