Effects of chemical composition on the pore structure and heat treatment on the deformation of PM aluminium foams 6061 and 7075

Orovčík, Ľubomír; Nosko, Martin; Kováčik, Jaroslav; Dvorák, Tomáš; Štĕpánek, Matej; Šimančík, František

doi:10.4149/km_2016_6_463

Cited by 8 publications

(6 citation statements)

References 29 publications

(72 reference statements)

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“…Aluminum foam produced through the powder metallurgy technique has better mechanical properties than aluminum foam produced with the melting route, such as compressive strength. Therefore, aluminum foam sandwich made via the powder metallurgy route is more recommended for industrial applications than the other process (Orovčík et al, 2016). In the powder metallurgy technique, aluminum powder and a foaming agent (usually titanium hydride TiH2) are mixed and compressed.…”

Section: Manufacturingmentioning

confidence: 99%

Deficits in the Application of Aluminum Foam Sandwich: An Industrial Perspective

Hommel

Roth

Binz

2020

Proc. Des. Soc.: Des. Conf.

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Aluminum foam sandwich (AFS) is an innovative sandwich material for designing lighter products and has many advantages such as high stiffness and high mechanical-energy absorption capacity. Although AFS is ready for series production, the number of use cases is low. A survey was carried out in order to identify the obstacles in the application of aluminum foam sandwich. This paper presents the results of the survey, derives the demand for a support method for designing with aluminum foam sandwich and shows various support options to simplify the application of the material.

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Section: Manufacturingmentioning

confidence: 99%

Deficits in the Application of Aluminum Foam Sandwich: An Industrial Perspective

Hommel

Roth

Binz

2020

Proc. Des. Soc.: Des. Conf.

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“…However, to our understanding, no literature is available on the Al-Zn metallic foams fabricated by the space holder powder metallurgy route. The only literature currently available on Al-Zn foams is based on the melt route [33][34][35] and hence a need to conduct this study.…”

Section: Introductionmentioning

confidence: 99%

B₄C‐Reinforced Al–Zn Foams Having Superior Energy Absorption Efficiency

et al. 2022

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The low density of the aluminium foam and high energy absorption make them favourable for automobile, aerospace, and defence industries. However, the melt route for foam fabrication has challenges in achieving homogeneous distribution of pores. Hence, we have adopted the space holder technique using the powder metallurgy methodology to overcome such a challenge. In the current study, we fabricated Al–Zn alloy foams reinforced with varying volume fractions of B4C particles using NaCl as a space holder implemented by hot pressure‐assisted sintering and dissolution. X‐ray computed tomography revealed a homogeneous distribution of pores. The quasistatic compression studies showed that the samples containing a higher volume fraction of pores exhibited higher energy absorption efficiency in the fabricated foam. The maximum energy absorption efficiency (η) achieved was ≈93% for the pristine Al alloy foam with ≈50% porosity, which is ≈11% higher than the η value of 9 vol% B4C samples with similar porosity. Additionally, B4C particles delay the sudden collapse of cell walls and stabilize the compression behaviour. Adding B4C improves the η and strength at higher relative density. This fabrication methodology would help us develop foams with a homogenous pore distribution and regular geometry, achieving highly desirable mechanical properties.

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“…The core of the sandwich consists of a porous foam structure made of aluminum. Among the large number of possible manufacturing processes (Banhart, 2018), the powder metallurgical route has become well-established for AFS with aluminum face sheets, because it is well suited for industrial applications (Orovčík et al, 2016). This manufacturing process creates a metallic bond between the face sheets and the foam core, which requires no adhesives and has a high recycling quality (Seeliger, 2011).…”

Section: Introductionmentioning

confidence: 99%

Derivation of Motivators for the Use of Aluminum Foam Sandwich and Advantageous Applications

2021

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Aluminum foam sandwich (AFS) is an innovative material combination for designing lighter products and has many advantages such as a high bending stiffness at a low density and good energy absorption properties. Although the material is ready for series production, the number of industrial applications is low because of the high costs of the material, a lack of design knowledge and missing reference applications. This paper focuses on the aspect of missing reference applications and how to improve this situation in order to give designers an idea of where the material could be used profitably and to provide the basis for a selection method. Therefore, a systematic literature review is carried out to identify profitable applications with their respective advantages. As a main result, a set of motivators for the use of aluminum foam sandwich is developed, which will support the designer in evaluating the potential use of aluminum foam sandwich.

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Effects of chemical composition on the pore structure and heat treatment on the deformation of PM aluminium foams 6061 and 7075

Cited by 8 publications

References 29 publications

Deficits in the Application of Aluminum Foam Sandwich: An Industrial Perspective

Deficits in the Application of Aluminum Foam Sandwich: An Industrial Perspective

B₄C‐Reinforced Al–Zn Foams Having Superior Energy Absorption Efficiency

Derivation of Motivators for the Use of Aluminum Foam Sandwich and Advantageous Applications

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Effects of chemical composition on the pore structure and heat treatment on the deformation of PM aluminium foams 6061 and 7075

Cited by 8 publications

References 29 publications

Deficits in the Application of Aluminum Foam Sandwich: An Industrial Perspective

Deficits in the Application of Aluminum Foam Sandwich: An Industrial Perspective

B4C‐Reinforced Al–Zn Foams Having Superior Energy Absorption Efficiency

Derivation of Motivators for the Use of Aluminum Foam Sandwich and Advantageous Applications

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Product

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B₄C‐Reinforced Al–Zn Foams Having Superior Energy Absorption Efficiency