Characterization of aluminium-silicon carbide metal matrix composites (original) (raw)
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Wear Behaviour Analysis of Silicon Carbide based Aluminium Metal Matrix Composites
The group of light weight and highperformance aluminium centric material systems are referred as Aluminium Matrix Composites (AMCs). The properties of this metal can be enhanced by reinforcement of TiC,B4C,Al2O3, SiC, and graphite in volume fractions ranging from a few per cent to 60% in AMCs. Silicon Carbide (SiC) particles have been found to have an excellent compatibility with the aluminium matrix and can be obtained at low cost. The major part of applications of AMCs includes moving and sliding parts, hence the investigation of tribological properties of these materials is very important to understand the behaviour of composite materials while in service application. Therefore, present study focused on tribological properties (wear behaviour) of AA380 -SiC composite. The proposed AA380-SiC composites are to be fabricated by stir casting method with 15 % volume fraction of SiC particles and pin of 10 x 30 mm diameter and height are to be cut. The wear behaviour tests are to be carried at table 2 conditions using pin-on disc wear testing equipment. From the proposed result effect of test parameters on aluminium matrix alloy and silicon carbide-based aluminium metal matrix composites are to be studied. Further by using Taguchi's technique the results are to be tabulated in Minitab -17 software to analyse the effect of each input parameter on the wear rate.
THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING
ABSTRACTThe aim of this research is to study the mechanical properties and wear behavior of aluminum composite material (AMCs) reinforced with silicon carbide particles with varying percentages (0, 3, 6 and 9) wt. %. These composites samples were prepared by stir casting process. Tensile strength, compression strength, hardness and wear resistance of the prepared composites were analyzed. The result showed that adding SiC reinforced in Al matrix increased tensile strength, compression strength, wear resistance and hardness with increased wt. percentage of silicon carbide reinforced AMCs. Maximum tensile and compression strength and hardness showed at 9 wt. percentage SiC reinforced AMCs.
Metal matrix composite (MMCs) are next generation materials. MMCs add higher strength and stiffness than the matrix alloy, excellent wear resistance and lower coefficient of thermal expansion (CTE). Additional functionalities can be designed into some MMCs through appropriate selection of constituents. One of the important objectives of metal matrix composites is to develop a material with a judicious combination of toughness and stiffness. It decreases the sensitivity to cracks and flaws and at the same time increases the static and dynamic properties. The reinforcement effect occurs due to the extraordinary high strength of whiskers with diameters below a few micrometers. In general, Metal matrix composites consist of at least two components. One is the metal matrix and the second is reinforcement. In all cases, the matrix is defined as a metal, but a pure metal is rarely used as the matrix. It is generally an alloy. In the productivity of the composite, the matrix and the reinforcement are mixed together. Advance composite materials like Al/SiC metal matrix composite is gradually becoming very important materials in manufacturing industries e.g. aerospace, automotive and automobile industries due to their superior properties such as light weight, low density, high strength to weight ratio, high hardness, high temperature and thermal shock resistance, superior wear and corrosive resistance, high specific modulus, high fatigue strength etc. In this study aluminum (Al100)/SiC ,Silicon carbide reinforced particles metal matrix composites (MMCs) are fabricated by Melt stirring technique. The MMCs bars and circular plates are prepared with varying the reinforced particles by weight fraction ranging from 2%, 4%, 6%. The average reinforced particles size of SiC are 220 mesh, 300 mesh, 400 mesh respectively.
International Journal of Engineering Research and Technology (IJERT), 2013
https://www.ijert.org/a-study-of-microstructure-and-mechanical-properties-of-aluminium-silicon-carbide-metal-matrix-composites-mmcs https://www.ijert.org/research/a-study-of-microstructure-and-mechanical-properties-of-aluminium-silicon-carbide-metal-matrix-composites-mmcs-IJERTV2IS90295.pdf In the present study, silicon carbide particulate reinforced LM6 alloy matrix composites were produced by gravity die casting process by varying the particulate addition by weight fraction on percentage basis. Mechanical properties such as tensile, impact and wear test studies were conducted to determine the tensile strength, ductility, toughness and wear characteristics of cast MMC's. Micro structural properties of the as cast composites have also studied by using optical microscope. The experimental result reveals that the tensile property increases with increase in Sic, the toughness of composite decreases as silicon carbide percentage increases and the composite showed accountable increase in wear rate of cast MMC.
A Review and Analysis of Mechanical Properties of Aluminium Silicon Carbide – Metal Matrix Composite
Aluminium Silicon carbide alloy composite materials are widely used for a many number of applications like engineering structures, aerospace and marine application, automotive bumpers, sporting goods and so on. Present work is focused on the study of behavior of Aluminium with SiC particles composite produced by the stir casting technique. Different types of reinforcement's i.e. 0%, 5% and 15% of SiC are used. Hardness test is performed on the samples. In this study, reviewed and investigated the mechanical properties of Aluminium silicon carbide metal matrix composite and examine the values in LSDYNA analysis software. As % of SiC increases at certain level, the strength and hardness of the metal matrix composite material is increased.
Evaluation of Mechanical Properties of Aluminum-Silicon Carbide Metal Matrix Composite
International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022
A composite is a fusion of two or more different material chemically and unsolvable phases, its properties and structural concert are greater the ingredients performing homogeneous phases. Ceramics and Metals as well, can be implanted with particles, to advances their Property of these mixtures are known as MMCs. The mutual reinforcement's effect on Aluminium Metal Matrix material with individual and multiple particulate reinforcements like Hybrid Metal matrix composites are finding better applications in field such as aerospace, marine, automotive, structural, underwater, and transportation and various other fields. It s fairly observed that the density of composite was decreased and the hardness was increased. Due to its versatile properties it is preferred for fabricating different types of metal matrix composites. Metal matrix composites exhibit better and improved strength, toughness, formability, corrosion resistance, machinability, stiffness, wear, creep, fatigue and numerous other mechanical properties as compared to metals The present investigation has been focused on the different combinations of the usage of reinforced materials as a reinforcing agent in different Aluminium matrix alloys in the processing of aluminium metal matrix composites by stir casting method.
Study of Wear behaviour of Aluminium Metal Matrix Composite Reinforced with SiC
2016
Metal matrix composites (MMCs) constitute an important class of design and weight-efficient structural materials that are encouraging every sphere of engineering applications. There has been an increasing interest in composites containing low density and low cost reinforcements. Aluminium based metal matrix composites (MMCs) offer potential for advanced structural applications, high specific strength and modulus, as well as good elevated temperature resistance along with light weight and for marine applications. In the present work, aluminium-silicon carbide composite (Al-SiC) developed using a stir casting technique is studied for wear behaviour. The wear behaviour of the composite is investigated at room conditions at four different loads, 70N, 80N, 90N, 100N and with varying sliding speeds, i.e. 200, 300, 400, 500, 600, 700 rpm's, using a pin-on-disk wear testing machine. Variation of cumulative mass loss with the applied load, sliding speed, sliding distance and friction coe...
Future technologies always require new material to deal with, but conventional materials are limited in their numbers and have certain limitations with respect to the upcoming technologies. For the next generation technologies designers required materials which have a high strength to weight ratio, good workability, excellent castability, good thermal conductivity and corrosion resistance, which can be easily obtained in metal matrix composite. The mechanical properties of this mmc always attract the automobile and aerospace industries. This paper deals with the aluminum metal composite which contains silicon carbide partials as reinforcement. In this article different properties like mechanical, chemical and physical properties of the metal composite are discussed, as well as various types of parameters, and their influence on each other was studied in detail. This paper specifically deals with the effect of silicon particles reinforcement in the aluminum metal matrix and their related phenomenon. Keywords: Metal Metrix Composite (MMC), Silicon Carbide (SiCp) Particles Reinforcement, Aluminum (Al) Matrix Composite (AMC).
International Journal of Science & Engineering Development Research, 2018
The intentions of this exertion is to lessons about the microstructures, mechanical properties and wear characteristics of as cast silicon carbide (SiC) non-breakable aluminum matrix composites (AMCs). AMCs of changeable Silicon carbide (SiC) substance (0, 7, 14 and 24 wt. %) were equipped by stir casting process. Microstructures, Vickers hardness, tensile strength and wear performance of the prepared composites were analyzed. The results show those introducing Silicon carbide (SiC) reinforcements in aluminum (Al) matrix increased hardness and tensile strength and 28 wt. % Silicon carbide (SiC) reinforced aluminum matrix composites showed maximum hardness and tensile strength. Microstructure observation exposed clustering and non-homogeneous distribution of Silicon carbide (SiC) particles in the Al matrix. Porosities were observed in microstructures and increased with increasing wt. % of Silicon carbide (SiC) reinforcements in aluminum matrix composites. Pin-on-disc wear test indicated that reinforcing Al matrix with Silicon carbide (SiC) particles increased wear resistance.
Investigation on wear behaviour of Al7075-SiC metal matrix composites prepared by stir casting
Materials Today: Proceedings, 2020
This study evaluates the wear resistance of composite consisting silicon carbide particulates reinforced aluminium matrix composite fabricated by stir casting. Different amount of silicon carbide (0, 3, 6 and 9%) with average grain size 20 mm homogeneously distributed throughout the aluminium matrix. X-Ray Diffraction pattern observed the uniformly mixing of particulate reinforced composites. Pin on Disc wear tests were done at different sliding velocity (1, 2, 3 and 4 m/s) constant load and sliding distance are 30 N and 2000 m respectively for all casted samples.