Study of the Effect of the Fractional Composition of a SiC Reinforcing Phase on Mechanical and Thermophysical Characteristics of a Metallic Composite Material Based on an Aluminum Al–Si Alloy

Nyafkin, A. N.; Shavnev, A. A.; Serpova, V. M.; Kosolapov, D. V.; Zhabin, A. N.

doi:10.1134/s2075113323010252

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…Currently, there is a need for composite materials with high strength characteristics [ 17 , 18 , 19 ]. In some cases, additional requirements are imposed on the composites, including the ability to maintain performance properties at low temperatures (for example, for Arctic/Antarctic regions, deep space, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the experimental study of deformation and fracture under uniaxial tension of composite samples at room and cryogenic temperatures becomes important [ 30 ]. In addition, the combination of various types of components in hybrid metal composite materials is known to provide an increase in physicochemical characteristics [ 9 , 10 , 17 , 18 , 19 , 20 ]. This approach is the most promising for the involved class of nanostructured materials.…”

Section: Introductionmentioning

confidence: 99%

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Physical Mechanism of Nanocrystalline Composite Deformation Responsible for Fracture Plastic Nature at Cryogenic Temperatures

Qiao,

Ushakov,

Safronov

et al. 2024

Nanomaterials

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In this work, we consider the physical basis of deformation and fracture in layered composite nanocrystalline/amorphous material–low-melting crystalline alloy in a wide temperature range. Deformation and fracture at the crack tip on the boundary of such materials as nanocrystalline alloy of the trademark 5BDSR, amorphous alloy of the trademark 82K3XSR and low-melting crystalline alloy were experimentally investigated. The crack was initiated by uniaxial stretching in a temperature range of 77–293 K. A theoretical description of the processes of deformation and fracture at the crack tip is proposed, with the assumption that these processes lead to local heating and ensure the plastic character of crack growth at liquid nitrogen temperatures. The obtained results improve the theoretical understanding of the physics of fracture at the boundary of nanocrystalline and crystalline alloys in a wide temperature range. The possibility of preserving the plastic nature of fracture in a thin boundary layer of crystalline–nanocrystalline material at cryogenic temperatures has been experimentally shown.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physical Mechanism of Nanocrystalline Composite Deformation Responsible for Fracture Plastic Nature at Cryogenic Temperatures

Qiao,

Ushakov,

Safronov

et al. 2024

Nanomaterials

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Research on hydrogen distribution of electroless nickel plating on aluminum-based silicon carbide composites

Wang,

Cui,

et al. 2024

J. Phys.: Conf. Ser.

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Aluminum-based silicon carbide composite materials have the characteristics of high thermal conductivity, low thermal expansion, and good dimensional stability. Therefore, the composites are widely used in space microwave component shell products. In order to meet the functional requirements of conductivity, welding, and heat dissipation when applied to antenna microwave components, aluminum-based silicon carbide composite materials need to be chemically plated with nickel, which introduces hydrogen, thus requiring research on hydrogen release and control. Here, SEM, XRD, and other methods are used to characterize the microstructure of aluminum-based silicon carbide substrate and nickel plating layer. There are certain pore structures in both the substrate and plating layer, providing a place for hydrogen storage. The experimental method of hydrogen microprinting has been used to characterize the distribution of hydrogen. The results showed that the hydrogen distribution pattern in aluminum-based silicon carbide nickel plating is as follows: after nickel plating on aluminum-based silicon carbide, hydrogen is distributed in the nickel plating layer and the shallow substrate under the coating; with the extension of time, hydrogen spontaneously diffuses to the deep substrate; hydrogen is mainly distributed in the Al matrix and less on SiC particles.

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Study of the Effect of the Fractional Composition of a SiC Reinforcing Phase on Mechanical and Thermophysical Characteristics of a Metallic Composite Material Based on an Aluminum Al–Si Alloy

Cited by 2 publications

References 10 publications

Physical Mechanism of Nanocrystalline Composite Deformation Responsible for Fracture Plastic Nature at Cryogenic Temperatures

Physical Mechanism of Nanocrystalline Composite Deformation Responsible for Fracture Plastic Nature at Cryogenic Temperatures

Research on hydrogen distribution of electroless nickel plating on aluminum-based silicon carbide composites

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