Effect of grain size on the damping capacity of quasicrystalline Al–Cu–Fe materials

Ustinov, А.I.; Поліщук, С. С.; Skorodzievskii, V.S.; Bliznuk, Vitaliy

doi:10.1016/j.surfcoat.2008.05.049

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…Dynamic behaviors of the composite materials and structures were investigated in order to improve the damping behavior at high temperatures [ 12 , 13 , 14 ]. Many authors have investigated dynamic characteristics of composite materials and structures using free vibration methods [ 15 , 16 , 17 , 18 , 19 , 20 ]. Adding reinforcement particles to the metal matrix composites can change their mechanical and dynamic properties.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics Study for Surface Composite of AMMNCs Matrix Fabricated by Friction Stir Process

Moustafa

2018

Materials

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In the present work, Aluminum Metal Matrix Surface Nano Composites (AMMSNCs) were manufactured using Friction Stir Processing (FSP). Moreover, the fabricated surface composite matrix was exposed to a different number of tool passes with different processing parameters. The tensile test and microstructure examinations were used to study the mechanical properties of the composite surface. The dynamic properties were predicted using modal analysis and finite element methods. After this, dynamic characterization was achieved by combining the numerical and experimental methods to investigate the effects of changing the number of passes on the natural frequency and the damping capacity of the AMMSNCs manufactured using FSP. The results indicated that the damping capacity and dynamic behavior improved with an increased number of FSP passes.

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Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics Study for Surface Composite of AMMNCs Matrix Fabricated by Friction Stir Process

Moustafa

2018

Materials

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“…In order to achieve an optimal combination of high damping and good mechanical properties, manipulation of the crystalline structure has recently been attempted [12,13]. In this approach, a reduction of the quasicrystal grain size of Al-Cu-Fe to nanoscopic dimensions was reported to significantly increase its damping capacity, owing to the dissipation of mechanical energy in the nanostructured quasicrystals [11]. In addition, grain refinement of A356 alloy has also resulted in a simultaneous improvement in the damping capacity and mechanical properties [12,13].…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Jang¹,

Choi²,

Shin³

et al. 2019

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THE INFLUENCE OF GRAIN SIZE ON THE MECHANICAL DAMPING BEHAVIOR OF ALUMINUMAn understanding of the fundamental correlation between grain size and material damping is crucial for the successful development of structural components offering high strength and good mechanical energy absorption. With this regard, we fabricated aluminum sheets with grain sizes ranging from tens of microns down to 60 nm and investigated their tensile properties and mechanical damping behavior. An obvious transition of the damping mechanism was observed at nanoscale grain sizes, and the underlying causes by grain boundaries were interpreted.

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“…Such processes can facilitate microplastic flow and enhance essentially damping capacity (i.e., a capability of material to dissipate mechanical energy at cyclic strain) of QCs with nanometer-sized grains [8].…”

Section: Introductionmentioning

confidence: 99%

Structure and properties of quasicrystalline and approximant EBPVD coatings of Al-based systems

Ustinov¹,

Поліщук²,

Scorodzievskii³

et al. 2009

Zeitschrift Für Kristallographie - Crystalline Materials

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Abstract. This paper considers main features of the formation of Al--Cu--Fe and Al--Cr--Fe coatings with complex crystalline structures using high-rate electron beam physical vapour deposition (EBPVD). It is shown that the deposition of the coatings at substrate temperatures below approximately 570 K leads to the formation of nanostructured quasicrystalline or approximant phases. Mechanical behaviour at static and dynamic loadings of the coatings was investigated. It is established that the decreasing of the grain size in the materials to nanoscale values results in significant enhancement of their damping capacity (a mechanical energy dissipation in the materials) at alternate strains. Possibilities of the use of materials based on quasicrystalline and/or approximant phases as hard and high damping coatings for the prevention of early destruction of gas turbine blades are discussed.

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Effect of grain size on the damping capacity of quasicrystalline Al–Cu–Fe materials

Cited by 10 publications

References 17 publications

Dynamic Characteristics Study for Surface Composite of AMMNCs Matrix Fabricated by Friction Stir Process

Dynamic Characteristics Study for Surface Composite of AMMNCs Matrix Fabricated by Friction Stir Process

Archives of Metallurgy and Materials

Structure and properties of quasicrystalline and approximant EBPVD coatings of Al-based systems

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