Research Articles in Mechanical Engineering

Permanent URI for this collectionhttps://repository.nileuniversity.edu.ng/handle/123456789/130

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Author: search.filters.author.O.O. AgboolaSubject: search.filters.subject.Aluminium matrix composite

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    Optimization of the tribological properties of hybrid reinforced aluminium matrix composites using Taguchi and Grey’s relational analysis
    (Elsevier, 2021-07-05) Peter Pelumi Ikubanni; Makanjuola Oki; Adekunle Akanni Adeleke; O.O. Agboola
    The tribological properties of synthesized hybrid reinforced aluminium matrix composites (AMCs) have been optimized in this study using Taguchi and grey relational analysis (GRA), methods where a L16 orthogonal array was used for the experimental design. Hybrid palm kernel shell ash (0–6 wt.%) and SiC (2 wt.%) formed the reinforcements of interest, which were combined in ratios ranging between 2 and 8 wt.%. Different loads (250, 500, 750, and 10 0 0 g) and speeds (250, 500, 750, and 10 0 0 rpm) were used as control factors. The wear samples were produced using the double-stir casting method, while a Taber type abrasion machine was used for the wear experiments. The evaluated wear index and volume loss showed that the speed and load were better influential factors on the performance characteristics of the composites than wt.% of reinforcements. The Taguchi-Grey’s relational analysis gave the optimal combination of the process parameters for both the wear index and the volume loss as A3 B1 C1 (Reinforcement = 6 wt.%; Load = 250 g; Speed = 250 rpm) and A1 B1 C1 (Reinforcement = 2 wt.%; Load = 250 g; Speed = 250 rpm), respectively. The predicted and experimental values at the optimum conditions were confirmed to be within the range based on the performance of the confirmation test. The utilization of Taguchi and GRA methods have significantly confirmed that the influence of speed as a factor of performance was higher than load, which in turn was a better influencing factor than wt.% of reinforcements
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    Tribological and physical properties of hybrid reinforced aluminium matrix composites
    (Elsevier, 2021-04-14) Peter Pelumi Ikubanni; Makanjuola Oki; Adekunle Akanni Adeleke; A.A. Adediran; O.O. Agboola; O. Babayeju; N. Egbo; Ibrahim Momoh-Bello Omiogbemi
    Abstract This study considers the physical and tribological properties of hybrid reinforced aluminium matrix composites using Al 6063 alloy and silicon carbide (SiC) and palm kernel shell ash (PKSA) as reinforcements. The reinforcements used were 0, 2, 4, 6, 8, and 10 wt% in the matrix metal at different ratios of the SiC and PKSA using the double stir casting method. Experimental density and porosity of the samples were determined. Taber wear abrasion tester was utilized in the wear test experimentation. The results disclosed that the density of the composite reduced with PKSA increment, while other samples with SiC increment have improved density. The porosity percentage results showed that the double stir casting method used was acceptable as the values were within the permissible limit for cast MMCs. The sliding speed and applied load increment increased the mass loss and wear index for all the samples.