A Nanoindentation Study on Al (TiFe-Mg-SiC) Composites Fabricated via Stir Casting

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

doi:10.4028/www.scientific.net/kem.821.81

Cited by 7 publications

(1 citation statement)

References 14 publications

(13 reference statements)

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“…A study on the microstructural and mechanical properties of stir-cast aluminum composite was carried out by Akinwamide et al (2020), in which SiC and FeTi were infused into the matrix at varying dosages of 2, and 5 wt.% saw improvement in the mechanical properties. In the same vein, Akinwamide et al (2019a, b) showed the role of ferrotitanium and silicon carbide on the properties in enhancing the properties of aluminium matrix.…”

Section: Introductionmentioning

confidence: 91%

Hybridization of aluminium-silicon alloy with boron carbide and ferrotitanium and the effect on mechanical properties as auto-material

Oladosu

Akinwande

Adesina

et al. 2023

Preprint

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The brittle nature of ceramic reinforcement in metal matrixes has initiated a gap in the utilization of metal-based particles as supplementary reinforcement. This present study investigated the influence of adding FeTi as supplementary reinforcement to B4C and FeTi in an aluminum-silicon (Al-12Si) matrix for automobile applications. The FeTi alloy was introduced at 3, 6, and 9 wt.% alongside the 5 wt.% B4C particles. The effect of such an addition on the morphology, physical, and mechanical properties was examined. The X-ray diffraction pattern identified the presence of B4C and FeTi reinforcing phases alongside Al3Fe and Ti5Si3 phases. The examined morphology revealed that the particles were well dispersed in the matrix, with consequent effects on their properties. Porosity was reported to reduce linearly with a rise in FeTi dosage, consequently engendering a linear rise in density and relatively high density. Inclusive of the hardness, the yield and ultimate strength were enhanced progressively upon a progressive rise in FeTi dosage, with a contrary reduction in ductility. The result revealed that the inclusion of FeTi reinforcing fillers in the matrix is capable of causing an appreciable improvement in the mechanical properties of the composite.

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Section: Introductionmentioning

confidence: 91%

Hybridization of aluminium-silicon alloy with boron carbide and ferrotitanium and the effect on mechanical properties as auto-material

Oladosu

Akinwande

Adesina

et al. 2023

Preprint

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Synthesis and characterization of spark plasma sintered zirconia and ferrotitanium reinforced hybrid aluminium composite

Akinwamide¹,

Maleka

Motabeni

et al. 2022

Int J Adv Manuf Technol

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This research reports on the microstructural characterization and nanomechanical evaluation of hybrid aluminium-based composite, fabricated by reinforcing pure aluminium matrix with zirconia (ZrO2) and ferrotitanium (TiFe) particles. The composites were consolidated using the spark plasma sintering technique, and the properties of the reinforced composites were examined and compared with pure aluminium samples fabricated using the same sintering parameters. The formation of new phases in the hybrid composites was ascertained using the X-ray diffraction technique, while the morphologies of the starting powders and as-sintered specimens were analysed using optical and scanning electron microscopes. Mechanical tests such as Vickers microhardness and frictional coefficient were determined to ascertain the respective strength and tribological performance. Nanoindentation test was also carried out to evaluate the nanomechanical properties such as penetration depth, elastic modulus, work indentation, and indentation creep. The results from this study revealed that mixing and sintering the admixed powders at sufficiently high temperature resulted in the formation of new phases which contributed to improved mechanical performance of the hybrid composites. The absence of pinning effect in loading and unloading curves from the nanoindentation test conducted confirmed the homogeneous dispersion of the reinforcement particles. Overall, the sample reinforced with 5% TiFe and 5% ZrO2 exhibited the most improved mechanical properties, while the unreinforced aluminium sample recorded the least mechanical and nanomechanical performance.

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Influence of Ferrotitanium and Silicon Carbide Addition on Structural Modification, Nanohardness and Corrosion Behaviour of Stir-Cast Aluminium Matrix Composites

Akinwamide

Akinribide

Olubambi

2020

Silicon

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A Nanoindentation Study on Al (TiFe-Mg-SiC) Composites Fabricated via Stir Casting

Cited by 7 publications

References 14 publications

Hybridization of aluminium-silicon alloy with boron carbide and ferrotitanium and the effect on mechanical properties as auto-material

Hybridization of aluminium-silicon alloy with boron carbide and ferrotitanium and the effect on mechanical properties as auto-material

Synthesis and characterization of spark plasma sintered zirconia and ferrotitanium reinforced hybrid aluminium composite

Influence of Ferrotitanium and Silicon Carbide Addition on Structural Modification, Nanohardness and Corrosion Behaviour of Stir-Cast Aluminium Matrix Composites

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