Corrosion behavior of novel AA1050/ZnO surface composite: A potential material for ship hull

Bajakke, Padmakumar A.; Malik, Vinayak; Jambagi, Sudhakar C.; Deshpande, Amruta

doi:10.1016/j.matlet.2020.128602

Cited by 16 publications

(4 citation statements)

References 20 publications

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“…In addition, the grain evolution modes include sub-grain boundaries→sub-grain boundaries, and high angle grain boundaries→high angle grain boundaries. The sub-grain boundaries result in elongated grains, mixed-mode boundaries account for equiaxed grains and oriented grains are the outcome of high angle grain boundaries [35][36][37][38]. Dinaharan et al [22].…”

Section: Friction Stir Processingmentioning

confidence: 99%

Energy-efficient method for developing in-situ Al-Cu metal matrix composites using microwave sintering and friction stir processing

Malik

Bajakke

Saxena

et al. 2022

Mater. Res. Express

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The problems associated with the fabrication of in-situ metal matrix composites (MMC) by conventional methods can be avoided by using microwave sintering and friction stirring in combination. The current study investigates the mechanical and electrical properties of pure aluminum (Al-100 wt.%) and Al-Cu MMC. The results showed that excellent ultimate tensile strength, toughness, and electrical conductivity can be acquired simultaneously. The obtained ultimate tensile strength in the case of Al-100wt.% (184.5 MPa) has improved two-fold than that of a typical commercially pure aluminum AA1016 (90 MPa). Similarly, the electrical conductivity of developed pure aluminum (88.87% IACS) is 1.4 times higher compared to AA1016 alloy (62% IACS). For Al-Cu MMC the copper is added in steps of 5 wt.% (5%, 10%, 15%, and 20%). The maximum ultimate tensile strength (205.2 MPa) and the electrical conductivity (71.53% IACS) obtained for Al-10wt.%Cu are higher compared to the AA1016 alloy. The present investigation suggests a novel processing route and opens up new research avenues in the field of solid-state materials processing.

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Section: Friction Stir Processingmentioning

confidence: 99%

Energy-efficient method for developing in-situ Al-Cu metal matrix composites using microwave sintering and friction stir processing

Malik

Bajakke

Saxena

et al. 2022

Mater. Res. Express

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“…From the end of World War 2 to 2020, the global demand for composite materials has only increased (Nunes 2015;Serifou et al 2020). These composite materials have been strongly involved in the development of our technologies both for sustainable construction, aviation (Das et al 2020;May et al 2020), shipbuilding (Bajakke et al 2020;Rubino et al 2020), for acoustic (Kushwaha and Bagha 2020;Marques et al 2020), for human comfort in buildings (Costa-Neves et al 2014;Granqvist et al 2018;M'ghari et al 2021), for furnishings (Ndiwe et al 2022(Ndiwe et al , 2020(Ndiwe et al , 2019 and the manufacture of medical plaster prostheses (Lu et al 2021). They stand out for their lightness, abundance, their renewability, and ease of use.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Grewia bicolor fibre and its use in the development of composites

Ndiwe,

Konai,

Omgba Betené

et al. 2023

International Wood Products Journal

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The fibre of Grewia bicolor bark (GB) was extracted and used as reinforcement for the development fibreboards using orthophtalique unsaturated polyester (UP) as a matrix. Two methods of extraction of fibres were used, namely biological retting and chemical extraction by a sodium hydroxide solution at a 5% concentration. Chemical, Physical, mechanical, and thermal characteristics were determined using ATF FTIR, mechanical test and thermogravimetric analysis. The theoretical density of the characterized fibres was 1.30 g/ cm 3 . The porosity decreases by 5% from the root to the leaves. The SEM analysis indicated the presence of fibrils coated with a rough sheath similar to a honeycomb cell structure. The use of NaOH in the extraction method removes the hemicellulose, pectin, wax, and lignin from the fibres. The average elasticity modulus of untreated and treated fibres are, respectively, E = 35.18 ± 2.25 MPa and E = 33.47 ± 2.35 MPa and internal bond of fibreboards are 0.98 ± 0.05 MPa and 1.06 ± 0.02 MPa.

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“…[34][35][36] Seawater is a natural corrosive electrolyte, which contains high concentration of sodium chloride. [37] The abundance of chloride ions greatly promotes the corrosion of aluminum alloys resulting in the reduction of the service time of ships. [10,13] However, due to changes in the chemical composition of the alloy and marine environmental conditions, there are certain discrepancies in the corrosion process of different types of aluminum alloys in the marine environment.…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior of a newly developed high strength aluminum alloy with high magnesium content under simulated seawater environment

Liu

Xie

et al. 2022

Materials & Corrosion

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AMg61 (Al-6.2% Mg), a novel form of high-strength, high-magnesium-content aluminum alloy, has been developed for specific maritime engineering in recent years, while its corrosion behavior in seawater is still unknown. Therefore, the corrosion behavior of AMg61 in the simulated seawater was investigated herein, using a weight-loss test and different electrochemical measurements. In addition, corrosion morphology and chemical contents were characterized by metallography, scanning electron microscopy, and energydispersive spectroscopy. The results demonstrated that intergranular corrosion and microcracks developed first in the second phase of AMg61, followed by pitting corrosion. The matrix of AMg61, on the other hand, exhibited a uniform and exfoliation corrosion. The corrosion rate gradually decreased over time.

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Corrosion behavior of novel AA1050/ZnO surface composite: A potential material for ship hull

Cited by 16 publications

References 20 publications

Energy-efficient method for developing in-situ Al-Cu metal matrix composites using microwave sintering and friction stir processing

Energy-efficient method for developing in-situ Al-Cu metal matrix composites using microwave sintering and friction stir processing

Characterization of Grewia bicolor fibre and its use in the development of composites

Corrosion behavior of a newly developed high strength aluminum alloy with high magnesium content under simulated seawater environment

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