Microstructural And Corrosion Resistance Study Of Sintered Al-Tin In Sodium Chloride Solution

Akinwamide, Samuel Olukayode; Tshabalala, Neo; Falodun, Oluwasegun Eso; Oke, Samuel Ranti; Akinribide, Ojo Jeremiah; Abe, Bolanle Tolulope; Olubambi, Peter Apata

doi:10.1016/j.matpr.2019.07.156

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…Shown in Figure 1 is the optical micrograph of the sintered specimens, with different volume percent of TiFe and SiC reinforcements. The inclusion of these reinforcements shows a significant effect on the microstructural evolution of the specimens [11]. Well-defined grains and little pores at intergranular regions are evident in the microstructure of the pure aluminium as shown in Figure 1a.…”

Section: Microstructural Analysismentioning

confidence: 99%

“…However, the spark plasma sintering technique has become a common method of consolidation of admixed powders [10]. The powders are compacted after they are heated in a vacuum furnace below their melting points to allow diffusion of atoms present [11,12]. The corrosion behavior and microstructural properties of SiC reinforced AMCs produced using sintering technique were investigated in research conducted by Zakaria et al [13].…”

Section: Introductionmentioning

confidence: 99%

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Studies on corrosion behaviour of sintered aluminium based composites in chloride environment

et al. 2021

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Aluminium matrix composites have been developed to replace other conventional engineering materials in specific industries where enhanced properties are required. The corrosion susceptibility of sintered unreinforced aluminium and composites in chloride medium (AMCs) were studied. The powders of pure as-received aluminium (matrix) and particles of ferrotitanium and silicon carbide particles were homogeneously dispersed using ball milling technique. Powder metallurgy route was utilised for consolidating the milled powders into a sintered compact. Microstructural examination of the compacted pure aluminium and composites confirmed an even distribution of the reinforcements in the aluminium matrix. The produced composites also recorded an improved corrosion resistance in a corrosive medium of 3.5 wt.% laboratory prepared sodium chloride, from the potentiodynamic polarization and chronoamperometry (potentiostatic) tests. The corroded specimens were further assessed for pitting using a field emission scanning electron microscope (FE-SEM). The resistance of the fabricated samples to corrosion was improved upon the addition of TiFe and SiC reinforcements.

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Section: Microstructural Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Studies on corrosion behaviour of sintered aluminium based composites in chloride environment

et al. 2021

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Comparative analysis of the corrosion resistance of Bos taurus and Cocos nucifera–reinforced 1170 aluminum alloy in chloride-sulfate solution

Loto,

Ogunleye,

Oladipupo

et al. 2023

Int J Adv Manuf Technol

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Reinforced AA1170 aluminium alloy with particulates of Bos taurus (BT) and Cocos nucifera (CN) (0% to 20% wt. concentration) was evaluated for their corrosion resistance properties in 3.5% NaCl and 0.05 M H 2 SO 4 solution by potentiodynamic polarization, open circuit potential analysis, potentiostatic analysis, optical and scanning electron microscopy and x-ray diffractometry. Results showed corrosion rate of monolithic aluminium alloy (0% particulate wt. concentration) from both electrolytes (3.5% NaCl and 0.05 M H 2 SO 4 ) are 0.204 and 0.259 mm/y. Corrosion rate of BT reinforced composites from both solutions decreased with respect to BT particulate concentration to 0.087 and 0.216 mm/y at 20% BT. Whereas corrosion rate of CN reinforced composites decreased to 0.161 mm/y in 3.5% NaCl and increased to 0.434 mm/y in 0.05 M H 2 SO 4 at 20% CN concentration. The most passivated aluminium composites from polarization plots occurred 5% BT and CN particulate concentrations. Increase in particulate concentration results in vulnerability to localized corrosion. Open circuit potential plots show the presence of the particulate reinforcements increased the thermodynamic instability of the surface properties of the composite and its exposure to active-passive transition behavior. Optical and scanning electron microscopy indicates signi cant improvements in the corrosion resistance of BT and CN particle reinforced aluminium compared to the unreinforced alloy were signi cant surface deterioration, pitting corrosion and intergranular corrosion were presence. X-ray diffractometry showed the phases identi ed for BT particle reinforced composite (Al 2 O 3 , Cu S 2, Zn S 2, ZnCO 3 and CuO 2 ) signi cantly enhances it corrosion resistance compared to the monolithic and CN particle reinforced composite.

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Evaluation of microstructural and nanomechanical performance of spark plasma sintered TiFe-SiC reinforced aluminium matrix composites

Akinwamide

Lesufi

Akinribide

et al. 2020

Journal of Materials Research and Technology

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Microstructural And Corrosion Resistance Study Of Sintered Al-Tin In Sodium Chloride Solution

Cited by 4 publications

References 4 publications

Studies on corrosion behaviour of sintered aluminium based composites in chloride environment

Studies on corrosion behaviour of sintered aluminium based composites in chloride environment

Comparative analysis of the corrosion resistance of Bos taurus and Cocos nucifera–reinforced 1170 aluminum alloy in chloride-sulfate solution

Evaluation of microstructural and nanomechanical performance of spark plasma sintered TiFe-SiC reinforced aluminium matrix composites

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