Tribological performance of a novel 7068-aluminium/lightweight-high-entropy-alloy fabricated via powder metallurgy

Akinwande, Abayomi Adewale; Kumar, M. Saravana; Adesina, Olanrewaju Seun; Adediran, Adeolu Adesoji; Romanovski, Valentin; Salah, Abdulrahman

doi:10.1016/j.matchemphys.2023.128207

Cited by 16 publications

(2 citation statements)

References 58 publications

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“…With the inclusion of FeTi in increasing proportion, porosity begins to decrease. This can be attributed to the ability of FeTi particles to ll existing pores and voids, a feat in tandem with the outcomes of Akinwande et al, 2023, andOlaniran et al, 2022, who observed a progressive decline in porosity with increasing particle llers.…”

Section: Porositymentioning

confidence: 90%

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: Porositymentioning

confidence: 90%

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 large uctuation of the friction coe cient is caused by two reasons. The rst is the periodic localized fracture of the surface layer [28,29]. The second is the periodic accumulation and elimination of debris on the worn surface.…”

Section: Wear Behaviourmentioning

confidence: 99%

Wear behaviour of SiC-Reinforced Metal Matrix Composites FeCrNiCuMo High Entropy Alloy Processed Through Powder Metallurgy

et al. 2023

Preprint

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A series of FeCrNiCuMo high-entropy alloys with different SiC (x = 10 and 15% wt. %) contents were designed, and their microstructure and tribological behaviour were investigated. The tribological behaviour and wear resistance of the composites were evaluated at a range of sliding speeds (20, 30, and 40 ms− 1) in a brake dynamometer for brake friction material applications. According to the estimates of volume loss, wear rate, and friction coefficient, the possible wear mechanisms were suggested in all cases. Additionally, SEM/EDS analysis was conducted on the worn surfaces and debris. With the increase in sliding speed, the wear rate increases due to the increased intensity of abrasive wear, oxidation wear, and plastic deformation-assisted wear. The materials possessed excellent braking performance and wear resistance. The values of average coefficient friction under A1 (20ms− 1), A2 (30ms− 1), and A3 (40ms− 1) sliding conditions were 0.23, 0.29, and 0.34, respectively. In comparison to the A3, the A1 exhibits a lower volume wear loss. As the sliding speed change, adhesive wear and abrasive wear become more prevalent, and fatigue wear also occurs.

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Gypsum Binder With Increased Water Resistance Derived From Membrane Water Desalination Waste

Romanovski,

Moskovskikh,

Tan

et al. 2024

Engineering Reports

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A method has been developed for separating a mixture of calcium, magnesium and sodium sulfates obtained through the interaction of sulfuric acid and waste from the water purification process generated by using membrane filters. The primary goal of this method is to extract gypsum and produce gypsum‐based binders. Patterns were identified regarding how various types, ratio and quantities of additives: blast furnace slag, granite screenings, portland cement, electric steel smelting slag affect the water‐gypsum ratio, strength properties, and water resistance of high‐strength gypsum binders. It was found that adding a single‐component additive specifically to enhance water resistance does not significantly impact these properties. Complex additives have been developed based on Portland cement, granulated blast furnace slag, electric furnace slag, expanded clay dust, and granite screenings of various fractions. These additives are designed to maximize the water resistance of high‐strength gypsum binder based on synthetic calcium sulfate dihydrate. As a result, the water resistance coefficient increased from 0.45 to 0.52. Additionally, a technological block diagram of the process has been proposed.

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Tribological performance of a novel 7068-aluminium/lightweight-high-entropy-alloy fabricated via powder metallurgy

Cited by 16 publications

References 58 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

Wear behaviour of SiC-Reinforced Metal Matrix Composites FeCrNiCuMo High Entropy Alloy Processed Through Powder Metallurgy

Gypsum Binder With Increased Water Resistance Derived From Membrane Water Desalination Waste

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