Mechanical characterization of open cell aluminium foams reinforced by nickel electro-deposition

Devivier, C.; Tagliaferri, V.; Trovalusci, Federica; Ucciardello, Nadia

doi:10.1016/j.matdes.2015.07.078

Cited by 38 publications

(26 citation statements)

References 25 publications

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“…However, expensive machineries, as well as low surface finishing and demanding process settings, limit the application of these methodologies in industrial environments [7]. Metal foams are composed of biphasic and cellular materials, which combine good mechanical resistance with excellent thermal and acoustic properties [8].In particular, high specific strength [9][10][11][12][13] and strain [14][15][16], excellent energy absorption [17,18], acoustic insulation [19], and heat dissipation media [20][21][22][23][24] make this class of materials increasingly useful for several multifunctional applications. The main problem afflicting metal foams regards the manufacturing process, and specifically the porosity distribution [25,26], as well as the connection with other components.…”

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confidence: 99%

Design and Mechanical Characterization of Voronoi Structures Manufactured by Indirect Additive Manufacturing

et al. 2020

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Additive manufacturing (AM) is a production process for the fabrication of three-dimensional items characterized by complex geometries. Several technologies employ a localized melting of metal dust through the application of focused energy sources, such as lasers or electron beams, on a powder bed. Despite the high potential of AM, numerous burdens afflict this production technology; for example, the few materials available, thermal stress due to the focused thermal source, low surface finishing, anisotropic properties, and the high cost of raw materials and the manufacturing process. In this paper, the combination by AM of meltable resins with metal casting for an indirect additive manufacturing (I-AM) is proposed. The process is applied to the production of open cells metal foams, similar in shape to the products available in commerce. However, their cellular structure features were designed and optimized by graphical editor Grasshopper®. The metal foams produced by AM were cast with a lost wax process and compared with commercial metal foams by means of compression tests.Materials 2020, 13, 1085 2 of 11 AM processes for metallic materials represent an interesting technology in manufacturing applications. The most applied AM processes for metals include laser beam melting (LBM), electron beam melting (EBM), and laser metal deposition (LMD). Metallic parts produced by AM are more suitable for industrial applications compared to polymeric parts. However, expensive machineries, as well as low surface finishing and demanding process settings, limit the application of these methodologies in industrial environments [7]. Metal foams are composed of biphasic and cellular materials, which combine good mechanical resistance with excellent thermal and acoustic properties [8].In particular, high specific strength [9][10][11][12][13] and strain [14][15][16], excellent energy absorption [17,18], acoustic insulation [19], and heat dissipation media [20][21][22][23][24] make this class of materials increasingly useful for several multifunctional applications. The main problem afflicting metal foams regards the manufacturing process, and specifically the porosity distribution [25,26], as well as the connection with other components. The latter is a critical factor in structural and heat-exchange devices, because welding and brazing processes are time-consuming, costly, and not suitable for the most common materials exploited in metal foams production. This burdens their feasibility in industrial applications [27,28]. The cellular configuration design is fundamental, as its purpose is the definition of a commercial foam-like structure that matches specific application requirements. As a consequence of their random structure, the foams offer very valuable materials for filters [29][30][31] or heat exchange processes [32][33][34][35].

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Design and Mechanical Characterization of Voronoi Structures Manufactured by Indirect Additive Manufacturing

et al. 2020

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“…The compressive properties of open cell metal foams in [2] and [3], metal matrix syntactic foams in [4] to [8], and titanium foam in [9] were investigated, while the elastic behaviour of closed-cell aluminium foam under uniaxial loading and bending conditions was also studied in [10].…”

Section: Introductionmentioning

confidence: 99%

Compressive Response Determination of Closed-Cell Aluminium Foam and Linear-Elastic Finite Element Simulation of μCT-Based Directly Reconstructed Geometrical Models

2018

SV-JME

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Metal foams have a lightweight cellular structure with excellent mechanical and physical properties. It is well known that metal foams have high compression strength combined with good energy absorption characteristics [1]. Therefore, the interest in these materials is widespread not only as a vibration damper or sound absorber but also as a load-bearing structural element. Numerous applications rely on the compressive property of metal foams, which directly depend on its structure. As a load-bearing structural element (e.g. vehicle part, biomedical implant) metal foam is expected to behave elastically under working circumstances, so the material response must be predicted precisely in the elastic region. Numerical determination of compressive properties of foam structure remains a demanding engineering task, and it is indispensable for design purposes.A number of studies have reported on measuring the material response of different types of metal foams in destructive ways. Geometrical modelling is an essential part of the procedure aiming the investigation of metal foam structures in a numerical way. Numerous approaches can be found in the literature for the proper description of foam structures, one of which is the usage of uniform cell models which results in simplified geometry compared with the actual structure. A combination of spherical and cruciform-shaped cells was used to model closed-cell aluminium foam and to simulate its material response in [11], while different uniform cell structures were applied to the model and simulate open cell metal foams in [12] to [14]. Diamond and cubic cell foam structure were also used to simulate the effect of cell shape on the mechanical behaviour of open cell metal foams in [15].Since the inner structure of different types of metal foams is quite complicated, a surface analysis can result in imperfect or false data. Recent studies proved X-ray computed tomography to be an efficient and powerful tool for mapping the complete structure • Calculations based on geometrical model precisely described the compressive response in the elastic region. Compressive Response Determination of Closed-Cell Aluminium Foam and Linear-Elastic Finite Element Simulation of µCT-Based Directly Reconstructed Geometrical Models

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“…Devivier et al [8] have focused on optimization and improvement of mechanical properties of open cell * corresponding author; e-mail: tamererturk@gmail.com aluminum foams using electro-deposited coatings of nickel. Results of applied compression tests have shown that mechanical properties regarding the energy absorption capacity were directly proportional to the density or deposition time.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Mechanical Performance of Aluminum Glass Fiber Reinforced Foam Material by Cu Modification

Ertürk

Aydın

2017

Acta Phys. Pol. A

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Glass fiber-reinforced aluminum foam and its modified forms, using 1 and 3 wt.% of Cu, were produced by powder sintering process, using spherical carbamide particles as space holders. The foams with 40 and 60 vol.% porosity fractions were successfully produced after water leaching and sintering procedures. Compression test was performed on foam samples to compare both, the compressive properties and energy absorption behavior of them. The composite foam samples with Cu modification have shown a higher compressive strength than the parent material foam. The average plateau stress and energy absorption capacity of foams produced in this study, achieved via utilizing 3 wt.% Cu, were 7.06 MPa and 3.51 MJ/m 3 , respectively.

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Mechanical characterization of open cell aluminium foams reinforced by nickel electro-deposition

Cited by 38 publications

References 25 publications

Design and Mechanical Characterization of Voronoi Structures Manufactured by Indirect Additive Manufacturing

Design and Mechanical Characterization of Voronoi Structures Manufactured by Indirect Additive Manufacturing

Compressive Response Determination of Closed-Cell Aluminium Foam and Linear-Elastic Finite Element Simulation of μCT-Based Directly Reconstructed Geometrical Models

Enhanced Mechanical Performance of Aluminum Glass Fiber Reinforced Foam Material by Cu Modification

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