scholarly journals Prospects for using aluminum matrix composite materials in the automotive industry

2019 ◽  
Vol 298 ◽  
pp. 00059
Author(s):  
Ivan Romanov ◽  
Elena Romanova ◽  
Evgeny Chernyshov
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Internal Oxidation ◽  
Metal Matrix ◽  
Aluminum Matrix ◽  
Process Efficiency ◽  
Commercial Application ◽  
Aluminum Melt

The scope of the use of aluminum-alloy-based metal-matrix composite materials has been expanding in recent years. However, the high cost of raw materials is a considerable deterrent to the widespread implementation of products made of such composites. Therefore, the ranges of the said materials commercial application are yet inadequate to their technical and operational capabilities. So, methods of making metal-matrix composite materials directly from a liquid melt are currently of interest. This paper presents the theoretical studies and the results of practical experiments for the production of metal-matrix composite material by the internal oxidation method. There are described the results of mechanical tests and the microstructure of specimens confirming theoretical assumptions in the oxidation of aluminum melt array. A comparative analysis is given for the cost of producing an alloy containing 30% of Al2O3 particles obtained by adding the Al2O3 powder and an alloy obtained by the internal oxidation of the aluminum melt. The studied technology provides for the formation of aluminum oxide directly in the aluminum melt, thus enabling to produce a composite material by a single-stage process and ensuring the process efficiency.

Analysis of Technological Capabilities and Peculiarities of Fuse Welding of Products Made of Metal-Matrix Composite Materials Based on Aluminum Alloy Produced by Internal Oxidation

2020 ◽  
Vol 992 ◽  
pp. 392-397
Author(s):  
E.A. Chernyshov ◽  
N.A. Kulinchenko ◽  
P.L. Zhilin
Keyword(s):  
Composite Material ◽  
Aluminum Alloy ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Internal Oxidation ◽  
Welded Joints ◽  
Arc Welding ◽  
Metal Matrix ◽  
Inert Gas ◽  
Metal Matrix Composite Material

This paper describes the outcomes of practical experiments in the validation of a technology for welding of the Al-Al2O3 metal-matrix composite material produced by the internal oxidation method. Technological capabilities are herein considered for argon-arc welding (Tungsten Inert Gas/ TIG) with filler wire and arc welding in a protective inert/active gas medium using a melting electrode (Metal Inert Gas/ MIG) for joining sheets of A6 aluminum alloy-based metal-matrix composite material (MMC). Mechanical properties of welded joints are determined and the fracture macrostructure is investigated. Fracture patterns and tensile strength are shown for different modes of welding procedure for alloy plates of 5, 8 mm in thickness by the TIG method and 25 mm by the MIG method. The macrostructural and mechanical heterogeneity of welded joints is shown. Welds made under optimal conditions are free of any macrodefects. The welded joint strength is up to 96% of the base material strength.

scholarly journals Numerical simulation of deformation and fracture of metal-matrix composites with considering residual stresses

2020 ◽  
pp. 86-96
Author(s):  
A. V Zemlianov ◽  
E. P Evtushenko ◽  
R. R Balokhonov
Keyword(s):  
Numerical Simulation ◽  
Composite Material ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Thermal Stresses ◽  
Mechanical Response ◽  
Aluminum Matrix ◽  
Local Stress ◽  
Ceramic Particles

Thermomechanical behavior of metal-matrix composite materials is investigated. Boron carbide B4C and high-strength aluminum alloy 6061-T6 are used as strengthening particle and matrix materials, respectively. Microstructure of the metal-matrix composite takes into account the complex shape of particles explicitly. Isotropic elastoplastic and elastic-brittle models were used to simulate the mechanical response of the aluminum matrix and ceramic particles, respectively. To investigate the crack initiation and propagation in ceramic particles, a Huber type fracture criterion was chosen that takes into account the type of the local stress state in ceramic materials: bulk tension or compression. The composite material with a single particle of both the really observed in the experiment and ideally round shapes is considered. The influence of the residual thermal stresses arising during cooling of the composite material from the temperature of aluminum recrystallization to the room temperature on the character of plastic strain localization in the aluminum matrix and fracture of carbide particles and on the macroscopic strength of the composite under external tension or compression is studied numerically. Two-dimensional dynamic boundary value problems in the plane-stress and plane-strain formulations were solved numerically by the finite element method using the Explicit module of the Abaqus software package. VUMAT subroutine procedures incorporating the constitutive models were developed and integrated into the Abaqus solver. Based on the results of the numerical simulation, it was concluded that the residual thermal stresses arising during cooling lead to the change in the mechanism of the particle fracture from in-particle cracking to debonding and increase the strength of the composite subjected to tension after the cooling.

scholarly journals High-Temperature Synthesis of Metal–Matrix Composites (Ni-Ti)-TiB2

2021 ◽  
Vol 11 (5) ◽  
pp. 2426
Author(s):  
Vladimir Promakhov ◽  
Alexey Matveev ◽  
Nikita Schulz ◽  
Mikhail Grigoriev ◽  
Andrey Olisov ◽  
...  
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Average Particle Size ◽  
Synthesis Process ◽  
Average Particle ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

Currently, metal–matrix composite materials are some of the most promising types of materials, and they combine the advantages of a metal matrix and reinforcing particles/fibres. Within the framework of this article, the high-temperature synthesis of metal–matrix composite materials based on the (Ni-Ti)-TiB2 system was studied. The selected approaches make it possible to obtain composite materials of various compositions without contamination and with a high degree of energy efficiency during production processes. Combustion processes in the samples of a 63.5 wt.% NiB + 36.5 wt.% Ti mixture and the phase composition and structure of the synthesis products were researched. It has been established that the synthesis process in the samples proceeds via the spin combustion mechanism. It has been shown that self-propagating high-temperature synthesis (SHS) powder particles have a composite structure and consist of a Ni-Ti matrix and TiB2 reinforcement inclusions that are uniformly distributed inside it. The inclusion size lies in the range between 0.1 and 4 µm, and the average particle size is 0.57 µm. The obtained metal-matrix composite materials can be used in additive manufacturing technologies as ligatures for heat-resistant alloys, as well as for the synthesis of composites using traditional methods of powder metallurgy.

Metal Matrix Composite Materials Today

JOM ◽  
1985 ◽  
Vol 37 (6) ◽  
pp. 43-43 ◽  
Author(s):  
Jacques E. Schoutens
Keyword(s):  
Composite Materials ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix

Metal-Matrix Composite Materials

MICC 90 ◽  
1991 ◽  
pp. 24-37
Author(s):  
Nikolai P. Lyakishev ◽  
Ivan M. Kopiev
Keyword(s):  
Composite Materials ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix
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