Statistical modeling of Si‑based refractory compounds of Bamboo leaf and Alumina reinforced Al–Si–Mg alloy hybrid composites
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Date
2023
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Nature Portfolio
Abstract
Wear properties of Al–Mg–Si alloy matrix hybrid composites made with Si-based refractory
compounds (SBRC) derived from bamboo leaf ash (BLA) as complimentary reinforcement with alumina
have been studied. The experimental result indicate that optimum wear loss was obtained at higher
sliding speed. The wear rate of the composites increased with an increase in BLA wt. %, with the
composites having 4%SBRC from BLA+ 6% alumina (B4) showing the least wear loss for the diferent
sliding speeds and wear loads considered. With increasing BLA weight percent, the composites’
wear mechanism was mostly abrasive wear. Numerical optimization results using central composite
design (CCD) reveal that at a wear load of 587.014N, sliding speed of 310.053 rpm and B4 hybrid fller
composition level respectively, minimum responses in wear rate (0.572mm2/min), specifc wear rate
(0.212cm2
/g.cm3) and wear loss (0.120 g) would be obtained for the developed AA6063 based hybrid
composite. Perturbation plots indicate that the sliding speed have more impact on wear loss, while
wear load have signifcant impact on the wear rate and specifc wear rate.