AlSiC-BASED METAL MATRIX COMPOSITES FOR POWER ELECTRONIC DEVICES

Каблов, Е. Н.; Гращенков, Д. В.; Shchetanov, B. V.; Шавнев, А.А.; Nyafkin, A.N.; Vdovin, Sergey; Нищев, К. Н.; Chibirkin, V. V.; Елисеев, В. В.; Эмих, Л.А.

doi:10.1615/compmechcomputapplintj.v4.i1.40

Cited by 4 publications

(2 citation statements)

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“…Перспективным направлением решения обозначенных проблем является применение дисперсно-армированных металлических композиционных материалов (МКМ) на основе алюминиевых сплавов, а также совершенствование технологий получения деталей из них с целью обеспечения требуемого уровня физикомеханических и эксплуатационных характеристик изготавливаемых из них изделий [5][6][7][8][9][10].…”

Section: введение введениеunclassified

Influence of thermomechanical treatment on the formation of the structure in dispersed-reinforced aluminum alloy-based metal composite materials

Nyafkin,

Kosolapov,

Kurbatkina

2023

Izv. VUZ. Poroshk. Met.

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The study explored various facets of the structure of dispersed-reinforced aluminum alloy-based metal composite material (MCM) under different modes of thermomechanical treatment. Replacing traditional structural materials with MCM provides manufacturers with an opportunity to achieve higher levels of engineering superiority. The ability to choose composition, modify primary component ratios, and employ a range of MCM manufacturing techniques allows for precise tuning of the material's strength, rigidity, temperature range, and other physical and mechanical properties. Two prevalent technologies for crafting dispersed-reinforced aluminum alloy-based MCM exist: liquid-phase and powder technologies. Liquid-phase methodology entails merging the reinforcing component into the binder alloy's melt, followed by crystallization. This process guarantees the dispersion and fixation of reinforcing particles within the binder volume. In contrast, powder technology involves simultaneous processing of primary component powders in high-energy mills, with subsequent amalgamation of the resultant composite granules via pressure molding. The chief aim of thermomechanical treatment lies in yielding blanks that closely mimic the final product's geometry and reshaping the deformable material's structure to heighten its strength properties. Powder technology was employed to fabricate monolithic composite material samples. Their structures were analyzed, accompanied by tests to ascertain density and strength parameters of the MCM at room temperature. Consequently, dispersed-reinforced aluminum alloy-based MCM possessing a uniform structure, density exceeding 99.0 % of the theoretical value, and elevated mechanical attributes: σu = 300÷305 MPa and E = 87÷95 GPa, were successfully produced.

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Section: введение введениеunclassified

Influence of thermomechanical treatment on the formation of the structure in dispersed-reinforced aluminum alloy-based metal composite materials

Nyafkin,

Kosolapov,

Kurbatkina

2023

Izv. VUZ. Poroshk. Met.

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“…An efficient solution to this problem is using bases made of a metal matrix composite material (MMCM) based on aluminum matrix alloy reinforced by a filler, i.e., particles of silicon carbide [1][2][3][4][5] with high (>65%) concentrations of SiC. In addition to low cost source materials, such materials have low density along with adjustable (by changing the ratios of com ponents) TEC, thermal conductivity, strength, and hardness.…”

Section: Introductionmentioning

confidence: 99%

Studying the microstructure of AlSiC metal matrix composite material by scanning electron microscopy

Нищев

Novopoltsev

Mishkin

et al. 2013

Bull. Russ. Acad. Sci. Phys.

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High-cycle fatigue of a metal matrix composite based on an aluminum alloy 7075-T1 reinforced with silicon carbide particles

Горбовец

Kosolapov

Ryzhkov

2020

Vopr. materialoved.

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The article presents results of the fatigue strength study of a metal matrix composites based on an aluminum alloy of the 7075-T1 grade, containing 20 vol.% silicon carbide obtained by powder technology using mechanical alloying followed by hot pressing. The high-cycle fatigue (HCF) study was carried out at five levels of stress amplitude at room temperature and at four levels of stress amplitude at high temperature (100°C). Smooth samples of corset type with a circular cross section were manufactured in accordance with the requirements of GOST 25.502–79. Synthesized samples went through the heat treatment stage characteristic of the matrix aluminum alloy 7075. Spherical particles within the range from 5 to 70 μm served as the raw material for the initial matrix of the composite material, and the raw material for the reinforcing component were silicon carbide powder particles, which after a long mechanical alloying with matrix particles take the form of granules from 400 to 600 microns.The study of fatigue characteristics led to the conclusion that the introduction of a 20% reinforcing phase into the 7075-T1 matrix alloy based on silicon carbide particles made it possible to achieve a 1.3 times increase in endurance limits based on 2·107 cycles. An increase in the test temperature (100°C) leads to a decrease of 8% in the endurance limit. The change in the values of progressive deformation and resonance frequency during testing at room and high temperatures (100°C) is considered. At room temperature, it was found that with increasing durability, progressive deformation accumulates. At high temperature (100°C), it was found that with a decrease in durability, resonance frequency decreases more pronouncedly at each stress level.

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AlSiC-BASED METAL MATRIX COMPOSITES FOR POWER ELECTRONIC DEVICES

Cited by 4 publications

References 0 publications

Influence of thermomechanical treatment on the formation of the structure in dispersed-reinforced aluminum alloy-based metal composite materials

Influence of thermomechanical treatment on the formation of the structure in dispersed-reinforced aluminum alloy-based metal composite materials

Studying the microstructure of AlSiC metal matrix composite material by scanning electron microscopy

High-cycle fatigue of a metal matrix composite based on an aluminum alloy 7075-T1 reinforced with silicon carbide particles

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