Metallurgical Characteristics, Compressive Strength, and Chemical Degradation Behavior of Aluminum-Cenosphere Composite Foam Developed by Spray Forming Route

Shukla, Amarish Kumar; Mondal, D.P.; Majumdar, Jyotsna Dutta

doi:10.1007/s11665-021-05824-y

Cited by 11 publications

(2 citation statements)

References 38 publications

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“…The upper and bottom surfaces of the samples were applied with a thin layer of MoS 2 lubrication to reduce the friction between the anvil and samples. 38,39 The recorded force and displacement data were converted into engineering stress and strain using standard methodology. The 0.2% offset proof stress is considered as the yield stress for the sample according to the ISO 13314 standard.…”

Section: Quasi Static Compressive Deformationmentioning

confidence: 99%

Enhanced energy absorption and microstructural studies on hollow glass microsphere filled closed cell aluminum matrix syntactic foam

Thiyagarajan

Kumar

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The research on lightweight materials for advanced engineering applications attracted the development of metal matrix syntactic foams. The automobile sector has started using Al-based alloys in structural components such as crash-box, underride-guard, fenders, dampers, A, B, and C Pillars. The present study explores the energy absorption behavior; microstructural characterization such as SEM, EDS, and XRD analysis of hollow glass microsphere (HGM) filled aluminum matrix syntactic foam. A380 aluminum alloy reinforced with different volume fractions 10%, 20%, 30%, and 35% of hollow glass microspheres were used in the fabrication of syntactic foam using the stir casting technique. The quasi-static compression test conducted, evaluated the plateau strength, which improved from 284.14 to 341.69 MPa, and energy absorption capacity was observed in the range 139.25–187.92 MJ/m3. The plateau strength and energy absorption capacity were improved by 16.82% and 25.89% for the 35 vol.% HGM sample as compared with 10 vol.% HGM filled aluminum matrix syntactic foam. The addition of a calcium thickening agent in the casting process improved the bonding between aluminum and HGM particle and also the homogeneous distribution of HGM. The XRD analysis revealed the chemical reaction that occurred between aluminum and SiO2 that produced the AlSiO2 and Al2SiO5 interfacial compounds. This reaction tends to collapse the HGM cell wall and fills it with matrix material.

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Section: Quasi Static Compressive Deformationmentioning

confidence: 99%

Enhanced energy absorption and microstructural studies on hollow glass microsphere filled closed cell aluminum matrix syntactic foam

Thiyagarajan

Kumar

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…As the syntactic foam has similar characteristics to aluminium (Al) foams, it can be useful to the production of automotive brake rotors as well as of differential covers. Aluminium syntactic foam may be useful in brake lining applications owing to its better wear resistance [ 6 , 7 ]. Every automotive industry has to prioritize tackling the problem of weight reduction and fuel efficiency by decreasing environmental pollution and emissions of hazardous gases.…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis of Machining Induced Stress Distribution during Dry and Cryogenic Orthogonal Cutting of 7075 Aluminium Closed Cell Syntactic Foams

et al. 2023

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The addition of hollow aluminium oxide bubbles to the 7075 aluminium matrix results in a lightweight syntactic foam with a reduced density and an increased peak compression strength. The presence of ceramic bubbles also aids in a reduced coefficient of thermal expansion and thermal conductivity in comparison to aluminium alloys. In spite of their enhanced material properties, the inclusion of hollow aluminium oxide bubbles presents the challenge of poor machinability. In order to elucidate the problem of poor surface machinability, an attempt has been made to develop a thermo-mechanical finite element machining model using AdvantEdgeTM software with which surface quality and machined syntactic foam material can be analyzed. If the novel model developed is combined with virtual reality technology, CNC technicians can observe the machining results to evaluate and optimize the machining program. The main novelty behind this software is that the material foam is assumed as a homogeneous material model for simplifying the material model as a complex heterogeneous material system. The input parameters used in this study are cutting speed, feed, average size and volume fraction of hollow aluminium oxide bubbles, and coolant. For the output parameters, the numerical analysis showed a 6.24% increase in peak tensile machining induced stress as well as a 51.49% increase in peak cutting temperature as cutting speed (25 m/min to 100 m/min) and uncut chip thickness (0.07 mm to 0.2 mm) were increased. The average size and volume fraction of hollow aluminium oxide bubbles showed a significant impact on the magnitude of cutting forces and the depth of tensile induced stress distribution. It was observed on the machined surface that, as the average size of hollow aluminium oxide bubbles became coarser, the peak machining induced tensile stress on the cut surface reduced by 4.47%. It was also noted that an increase in the volume fraction of hollow aluminium oxide bubbles led to an increase in both the peak machining induced tensile stress and the peak cutting temperature by 29.36% and 20.11%, respectively. This study also showed the influence of the ceramic hollow bubbles on plastic deformation behavior in 7075 aluminium matrix; the machining conditions for obtaining a favorable stress distribution in the machined surface and sub-surface of 7075 closed cell syntactic foam are also presented.

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A review of aluminum metal matrix composites: fabrication route, reinforcements, microstructural, mechanical, and corrosion properties

Kumar,

Singh,

Singh

et al. 2024

J Mater Sci

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Metallurgical Characteristics, Compressive Strength, and Chemical Degradation Behavior of Aluminum-Cenosphere Composite Foam Developed by Spray Forming Route

Cited by 11 publications

References 38 publications

Enhanced energy absorption and microstructural studies on hollow glass microsphere filled closed cell aluminum matrix syntactic foam

Enhanced energy absorption and microstructural studies on hollow glass microsphere filled closed cell aluminum matrix syntactic foam

Computational Analysis of Machining Induced Stress Distribution during Dry and Cryogenic Orthogonal Cutting of 7075 Aluminium Closed Cell Syntactic Foams

A review of aluminum metal matrix composites: fabrication route, reinforcements, microstructural, mechanical, and corrosion properties

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