Characterization and mechanical response of novel Al-(Mg–TiFe–SiC) metal matrix composites developed by stir casting technique

Akinwamide, Samuel Olukayode; Lemika, Serge Mudinga; Obadele, Babatunde Abiodun; Akinribide, Ojo Jeremiah; Abe, Bolanle Tolulope; Olubambi, Peter Apata

doi:10.1177/0021998319851198

Cited by 24 publications

(7 citation statements)

References 31 publications

(29 reference statements)

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“…The smaller peaks with a diffraction angle of 80° belong to Silicon, while another with a diffraction angle of 40° relates to Tungsten Carbide, which is consistent with the literature. 22,23 The XRD for Al6061/4wt.%SiC/4wt.%WC and Al6061/8wt.%SiC/8wt.%WC is shown in Figures 8 and 9 and peaks at 80° is marked for Si because carbide is associated with the tungsten carbide in earlier peak. Due to the homogenous dispersion of material, there is no detrimental interfacial interaction between the aluminium, silicon carbide, and tungsten carbide, as seen by the XRD pattern.…”

Section: Resultsmentioning

confidence: 99%

Influence of SiC and WC reinforcements on the mechanical characteristics of AA6061 hybrid metal matrix composites

Suresh

Balamurugan

Jayabalakrishnan

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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The stir casting process was used to prepare AA6061 hybrid aluminium composites with Silicon Carbide and Tungsten Carbide as reinforcement components in this study. For this analysis, five samples were taken with varied compositions of Silicon Carbide ( x) and Tungsten Carbide ( y) depending on weight fraction (x: y = 0: 0 percent, 4: 4 percent, 8: 8 percent). Prior to manufacturing, the reinforcing granules are ball milled and microscopically examined using SEM and laser-based particle size analysers to validate particulate micron size. The SEM images show that particle size is reduced following ball milling. Laser particle analysis reveals typical mean particle sizes of up to 4.2 microns in SiC and 5.9 microns in WC. XRD and EDAX tests were conducted to investigate the material compositions. The mechanical properties of unreinforced and reinforced hybrid composites, including hardness, tensile, compression, and impact behaviour, were examined. SEM Images of broken samples were analysed to investigate sample microstructure. Hardness, tensile strength, and compression rise as the proportion of reinforcements increases, but impact energy reduces as the percentage of reinforcements increases. Composites containing 8 percent Silicon Carbide and 8 percent Tungsten Carbide had the best mechanical properties, with an ultimate tensile strength of 232.62 MPa, an ultimate compressive strength of 569.3 MPa, an impact energy of 3.4 J, and a hardness of 97.8 HV. Because the material's mechanical properties have improved, it can be used to make parts of automobiles, machines, and spacecraft.

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Section: Resultsmentioning

confidence: 99%

Influence of SiC and WC reinforcements on the mechanical characteristics of AA6061 hybrid metal matrix composites

Suresh

Balamurugan

Jayabalakrishnan

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…From the results, it is shown that the CoF for both samples decreased with increasing sliding distance. This could be attributed to the Al2O3 formation on the surface of the cast samples which acts as a lubricating film thereby reducing the effect of friction [30]. The formation of the oxide layer forms a barrier that reduces the contact between the alumina ball and the aluminium counter face thereby improving the wear resistance of both samples under consideration.…”

Section: Tribology Studiesmentioning

confidence: 99%

Characterization, machinability studies, and multi-response optimization of AA 6082 hybrid metal matrix composite

Ononiwu

Ozoegwu

Madushele

et al. 2021

Int J Adv Manuf Technol

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This work investigated the effect of carbonized eggshell and fly ash on the microstructure, mechanical properties and machinability of AA 6082. The fabrication method selected for this study was stir casting. For the hybrid metal matrix composite, the weight fraction was 2.5wt% carbonized eggshell and 2.5wt% fly ash. The microstructural examination of the cast composite showed an even dispersal of the reinforcing phases in the aluminium matrix. Density analysis saw a 10.66% reduction of the cast composite in comparison to the aluminium alloy. Improvements of 12.32%, 21.91%, and 8.30% were recorded for the microhardness, tensile strength and compressive strength respectively. The wear studies of the cast samples revealed coefficients of friction (CoF) of 0.499 and 0.290 for the base metal and the AMC respectively. For the machinability studies, the surface roughness and flank tool wear were the responses under consideration. The design of experiments was conducted using the Taguchi method. The input parameters for this investigation was the cutting speeds (100 mm/min, 200 mm/min, 300 mm/min), feeds (0.1 mm/rev, 0.2 mm/rev, 0.3 mm/rev) and depths of cut (0.5 mm, 1.0 mm, 1.5 mm). For the multi-response optimization, Taguchi based grey relational analysis was used. The analysis of variance (ANOVA) of the grey relational grade (GRG) revealed that the feed was the most influential factor on the surface roughness and tool wear. The initial optimization showed the optimal cutting speed, feed and depth of cut as 200 mm/min, 0.2 mm/rev and 1.5 mm respectively. The confirmatory experiments revealed that the optimal combination of factors was 200mm/min, 0.2 mm/rev and 0.5 mm for the cutting speed, feed and depth of cut respectively.

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“…Suresh et al (2019) studied the mechanical properties of AA7075/Al 2 O 3 /SiC nano-metal matrix composites and they reported that the mechanical properties improved compared to those of the base alloy and also a homogeneous distribution was achieved by utilizing appropriate stir casting parameters. Akinwamide et al (2019) synthesized aluminium reinforced with ferrotitanium and SiC composites and observed that the addition of SiC improved the hardness and that the formation of the oxide layer reduces the WR of the composites. Mistry and Gohil (2019) developed AMMCs reinforced with varying amounts of Si 3 N 4 content.…”

Section: Introductionmentioning

confidence: 99%

Investigations on microstructure, hardness and tribological behaviour of AA7075-Al2O3 composites synthesized via stir casting route

Perumal Ezhilan,

Emmanual,

Alagarsamy

et al. 2023

Rev. metal.

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Aluminium matrix composite (AMC) materials play an important role in the field of automobile and aerospace industries due to their excellent properties. In this research, aluminium alloy (AA7075) was reinforced with alumina (Al2O3) particles to improve their hardness and tribological behaviour of the base alloy. Four composites were prepared by varying the content (4, 8 and 12 wt.%) of Al2O3 particles through the stir casting technique. The surface morphology of the proposed composites ensured the uniform distribution of Al2O3 particles into the matrix alloy. The hardness of the composite was measured using a Brinell hardness tester and the maximum value of hardness was found in the AA7075 - 8 wt.% Al2O3 composite. Hence, a tribological investigation was carried out on this AA7075 - 8 wt.% Al2O3 composite. Load (P), sliding speed (V) and sliding velocity (D) were taken as the wear parameters for conducting the experiments. A Technique for Order Preference by Similarity to Ideal Preferred Solution (TOPSIS) approach has been applied to find out the optimal conditions of parameters to obtain the lowest wear rate (WR) and the co-efficient of friction (COF). The results showed that the lowest WR and COF was obtained at ‘P’ of 15 N, ‘V’ of 1 m•s-1 and ‘D’ of 1000 m•s-1. ANOVA results revealed that ‘P’ is the factor with the most significant contribution (38.36%), followed by ‘D’ (28.32%). The worn surface morphology of the confirmation experiment specimen was investigated by SEM and the wear mechanism was reported.

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Characterization and mechanical response of novel Al-(Mg–TiFe–SiC) metal matrix composites developed by stir casting technique

Cited by 24 publications

References 31 publications

Influence of SiC and WC reinforcements on the mechanical characteristics of AA6061 hybrid metal matrix composites

Influence of SiC and WC reinforcements on the mechanical characteristics of AA6061 hybrid metal matrix composites

Characterization, machinability studies, and multi-response optimization of AA 6082 hybrid metal matrix composite

Investigations on microstructure, hardness and tribological behaviour of AA7075-Al2O3 composites synthesized via stir casting route

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