of Achievements in Materials and Manufacturing Engineering Manufacturing of aluminium matrix composite materials reinforced by Al 2 O 3 particles (original) (raw)
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AbstrAct Purpose: The purpose of the paper is to show and compare of modern method composite materials with aluminium alloy matrix reinforced by Al 2 O 3 particles manufacturing. Design/methodology/approach: Material for investigation was manufactured by two methods: powder metallurgy (consolidation, pressing, hot extrusion of powder mixtures of aluminium EN AW-AlCu4Mg1(A) and ceramic particles Al 2 O 3) and pressure infiltration of porous performs by liquid alloy EN AC AlSi12 (performs were prepared by sintering of Al 2 O 3 powder with addition of pores forming agent – carbon fibers). Findings: The received results show the possibility of obtaining the new composite materials with required structure joining positive properties composite materials components. Practical implications: Tested composite materials can be applicate among the others in automotive industry but it requires additional researches. Originality/value: Worked out technologies of composite materials manufacturing can be used in the production of small elements near net shape and locally reinforced elements.
Manufacturing of aluminium matrix composite materials reinforced by Al 2 O 3 particles
2008
Purpose: The purpose of the paper is to show and compare of modern method composite materials with aluminium alloy matrix reinforced by Al 2 O 3 particles manufacturing. Design/methodology/approach: Material for investigation was manufactured by two methods: powder metallurgy (consolidation, pressing, hot extrusion of powder mixtures of aluminium EN AW-AlCu4Mg1(A) and ceramic particles Al 2 O 3) and pressure infiltration of porous performs by liquid alloy EN AC AlSi12 (performs were prepared by sintering of Al 2 O 3 powder with addition of pores forming agent-carbon fibers). Findings: The received results show the possibility of obtaining the new composite materials with required structure joining positive properties composite materials components. Practical implications: Tested composite materials can be applicate among the others in automotive industry but it requires additional researches. Originality/value: Worked out technologies of composite materials manufacturing can be used in the production of small elements near net shape and locally reinforced elements.
Thermal analysis of matrix composite reinforced with Al2O3 particles
Journal of Achievements in Materials and Manufacturing Engineering, 2020
Purpose: The aim of this paper is to present a modern manufacturing method of production and compare the thermal, mechanical, properties of composite materials with aluminium alloy matrix reinforced by Al 2 O 3 particles. Design/methodology/approach: The material for investigation was manufactured by the method of powder metallurgy (consolidation, pressing, hot concurrent extrusion of powder mixtures of aluminium EN AW-AlCu4Mg1 (A) and ceramic particles Al 2 O 3). The amount of the added powder was in the range of 5 mass.%, 10 mass.% and 15 mass.%. Findings: The received results concerning the enhancement of hardness, which show the possibility of obtaining the MMC composite materials with required microstructure, influencing the properties of the new elaborated composite materials components. Concerning the thermal properties, especially the linear thermal expansion coefficient was measured, as well as the dilatometric change of the sample length was analysed. Practical implications: Concerning practical implications it can be stated that the tested composite materials can be applied among others in the transportation industry, but it requires additional research. Originality/value: The received results show the possibility of obtaining new composite materials with controlled and required microstructure with possible practical implications.
Production and mechanical properties of Al2O3 particle-reinforced 2024 aluminium alloy composites
Journal of Materials Processing Technology, 2005
2024 aluminium alloy metal matrix composites (MMCs) reinforced with three different sizes and weight fractions of Al 2 O 3 particles up to 30 wt.% were fabricated by a vortex method and subsequent applied pressure. The effects of Al 2 O 3 particle content and size of particle on the mechanical properties of the composites such as hardness and tensile strength were investigated. The density measurements showed that the samples contained little porosity, and the amount of porosity in the composites increased with increasing weight fraction and decreasing size of particles. Scanning electron microscopic observations of the microstructures revealed that the dispersion of the coarser sizes of particles was more uniform while finer particles led to agglomeration of the particles and porosity. The results show that the hardness and the tensile strength of the composites increased with decreasing size and increasing weight fraction of particles.
Aluminium metal matrix composites are potential materials for various applications due to their good physical , mechanical, and chemical properties. Reinforcing phases are incorporated into the metallic matrix to improve the properties compare to the matrix materials. The effect of Al2O3 wt% on the Physical, mechanical and corrosion properties for Al metal matrix composites has been undertaken. The weight% of the reinforcement was varied systematically from 5 to 15wt% in 5 wt% intervals. The powder metallurgy composites were compacted and then heat treated. The paper presents the effect of different wt% of Al2O3 addition in Al metal.
Material characterisation and mechanical properties of Al2O3-Al metal matrix composites
Journal of materials science, 2001
The mechanical properties of metal matrix composites (MMCs) are critical to their potential application as structural materials. A systematic examination of the effect of particulate volume fraction on the mechanical properties of an Al 2 O 3 -Al MMC has been undertaken. The material used was a powder metallurgy processed AA 6061 matrix alloy reinforced with MICRAL-20 TM , a polycrystalline microsphere reinforcement consisting of a mixture of alumina and mullite. The volume fraction of the reinforcement was varied systematically from 5 to 30% in 5% intervals. The powder metallurgy composites were extruded then heat treated to the T6 condition. Extruded liquid metallurgy processed AA 6061 was used to establish the properties of the unreinforced material. C 2001 Kluwer Academic Publishers
Exploration of mechanical behavior of Al2O3 reinforced aluminium metal matrix composites
The Present research has focused on mechanical behaviour of aluminium oxide reinforced aluminium metal matrix composites. Aluminium metal matrix composites are fabricated using stir casting process by varying the reinforcement percentage volumes between 0 and 10, with 30 μm particles size. To study the mechanical behaviour through the effect of weight percentage of aluminium oxide, the fabricated specimens are tested for the mechanical and physical properties such as tensile strength, hardness and density and these values are compared with theoretical values which are obtained through the rule of mixtures. The mechanical properties of the composites are found to be greatly influenced with increasing the percentage volume of the reinforcement. Also it was observed that the experimental values of mechanical behaviour of AMMCs are nearer to the theoretical values.
Behaviour of Al2O3 in aluminium matrix composites: An overview
E3S Web of Conferences, 2021
In this paper, behaviour of Al2O3 in aluminium matrix composites is reviewed for its properties and applications. In addition, many metal matrix composite fabrication processes are also elaborated. In the present days the aluminium metal matrix composite is in high demand because of its superior properties. Its demand is still on rise because of its widespread use in automotive industries, aerospace industries and marine industries. The method of the fabrication of aluminium matrix-based composite is also a deciding factor for its resultant properties. Desired composite-properties are achievable by proper selection of reinforcing materials as well as the physical conditions. Various sections of current information compile the details about the behaviour of alumina particles in aluminium-based matrix for formation of metal matrix composites.
International Journal of Engineering Research and Technology (IJERT), 2019
https://www.ijert.org/Fabrication-and-Analysis-of-Aluminium-based-Metal-Matrix-Composites-Reinforced-with-Aluminium-Oxide https://www.ijert.org/research/Fabrication-and-Analysis-of-Aluminium-based-Metal-Matrix-Composites-Reinforced-with-Aluminium-Oxide-IJERTCONV7IS06007.pdf Aluminium alloys are widely used in aerospace and automobile industries due to their low density and good mechanical properties, better corrosion resistance and wear, low thermal coefficient of expansion as compared to conventional metals and alloys. The excellent mechanical properties of these materials and relatively low production cost make them a very attractive candidate for a variety of applications both from scientific and technological viewpoints. The aim involved in designing metal matrix composite materials is to combine the desirable attributes of metals and Ceramics. Present work is foal2o3sed on the study of behavior of Aluminum Cast Alloy with aluminum oxide composite produced by the stir casting technique. Different % age of reinforcement is used. Hardness Test, corrosion and microstructure performed on the samples obtained by the stir casting process. Hardness attester is employed to evaluate the interfacial bonding between the particles and the matrix by indenting the hardness with the constant load and constant time Index Term-Aluminium-Aluminium Oxide, Metal Matrix Composite, scanning electron microscopy(SEM), corrosion resistant, Hardness, Microstructure.
IAEME PUBLICATION, 2014
MMCs represent a new generation of engineering materials in which a strong ceramic reinforcement is incorporated into a metal matrix to improve its properties including specific strength, specific stiffness, wear, corrosion resistance and elastic modulus. Aluminum oxide and silicon carbide reinforced aluminum alloy matrix composites are applied in the automotive and aircraft where the mechanical properties of these materials are considered important. Therefore, the development of aluminum matrix composites is receiving considerable emphasis in meeting the requirements of various industries. In the present work Al alloy composites are prepared by addition of 10% weight of Al2O3 with different particle size (23µm, 45µm, 75µm, 120µm) of reinforcement by using stir casting method. And also study the influence of particle size on mechanical properties like hardness, tensile strength, percentage of elongation and also microstructure analysis is carried out by using SEM. The results show that improving hardness and tensile strength with decreasing particle size but percentage of elongation decreases with decreasing particle size. And from the SEM analysis observed that the precipitation of silicon phase in the acicular form at the grain boundaries of the alloy structure. And also distribution of larger particle size reinforcement is more uniform than the smaller particle size.