scholarly journals Friction Coefficient and Compression Behavior of Particle Reinforced Aluminium Matrix Composites

2019 ◽  
Vol 9 (1) ◽  
pp. 3782-3785
Author(s):  
Α. Ugur ◽  
H. Gokkaya ◽  
G. Sur ◽  
N. Eltugral
Keyword(s):  
Metal Matrix ◽  
Large Range ◽  
Wear Behavior ◽  
Low Cost ◽  
Stir Casting ◽  
Matrix Composites ◽  
Mass Percentage ◽  
Compression Behavior ◽  
Materials Used ◽  
Varied Reinforcement

Metal matrix composites (MMCs) are materials used in a large range of engineering applications. In this paper, the relatively low-cost stir casting is evaluated with the use for Silisyum Carbite (SiC) as reinforcement and Al7075 alloy as matrix to produce MMCs with varied reinforcement from 10% to 18%. The produced composites were examined, and their wear behavior was investigated. The results showed that the mechanical properties of the MMCs decrease with the increase of the mass percentage of reinforcement and compression.

Production of Metal Matrix Composite Using a Bottom Tapping Stir Casting Furnace

2015 ◽  
Vol 772 ◽  
pp. 263-267 ◽  
Author(s):  
Ramanathan Arunachalam ◽  
Majid Al-Maharbi ◽  
Yahya Al Kiyumi ◽  
Elyas Aal-Thani ◽  
Mohammed Al Mafraji
Keyword(s):  
Continuous Improvement ◽  
Manufacturing Process ◽  
Metal Matrix ◽  
Low Cost ◽  
Casting Process ◽  
Stir Casting ◽  
Matrix Composites ◽  
High Quality ◽  
Reinforcement Material ◽  
Low Cost Manufacturing

Metal matrix composites (MMC's) have attracted the attention of researchers for quite some time. In the last 15 years, many studies have been reported in this field of MMC production through various routes. The most commonly used process for producing MMC is stir casting process whereby the reinforcement material is incorporated into the molten metal by stirring. It is a relatively low cost manufacturing process that is capable of producing high quality MMC. However, the process is associated with issues such as attaining uniform distribution of particles, wettability between particles and porosity in the MMCs. Because of these challenges, there has been continuous improvement in the process as well as the design of the furnace. In this research, an innovatively designed bottom tapping furnace has been used to produce the MMCs and the produced sample is characterized.

Analysis on sliding wear behavior of Al + B4C+ mica hybrid metal matrix composites

2020 ◽  
Vol 10 (7) ◽  
pp. 986-997
Author(s):  
K. Velavan ◽  
K. Palanikumar
Keyword(s):  
Boron Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Stir Casting ◽  
Dry Sliding Wear ◽  
Wear Loss ◽  
Matrix Composites ◽  
Casting Technique

In this investigation, wear behavior of hybrid aluminum metal matrix composites (HMMCs) fabricated by stir casting technique is carried out. Boron carbide and Mica particles are added. The Mica percentage varies from 3–5% in steps of 1% with a constant reinforcement quantity of 10% boron carbide. The dry sliding wear experiments are explored on a pin on disc tribometer. The process variables considered for the study are: Mica mass fraction, sliding speed, load and sliding time, and the response analyzed is wear loss. Box-Behnken design is used for conducting the experiments. The result shown proves that 3% of Mica particle inclusion reduces the wear due to the increase in density. Further increase of mica does not improve the wear resistance. ANOVA results indicate that load and % of Mica are the profoundly influencing parameters. The pin surface is analyzed by using a Scanning Electron Microscope.

Effect of reinforcement percentage on wear behavior of SiCp reinforced ZA43 alloy metal matrix composites

2013 ◽  
Vol 20 (4) ◽  
pp. 311-317 ◽  
Author(s):  
Rajaneesh N. Marigoudar ◽  
Kanakuppi Sadashivappa
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Wear Behavior ◽  
Abrasive Particle ◽  
Wear Test ◽  
Stir Casting ◽  
Dry Sliding Wear ◽  
Scanning Electron Micrographs ◽  
Matrix Composites ◽  
Casting Technique

AbstractMetal matrix composites (MMCs) are characterized by high specific strength and stiffness. Light metal alloys are reinforced with hard ceramic particles, which show better properties compared to monolithic alloys. ZA43 MMCs are fabricated by stir casting technique by reinforcing preheated silicon carbide particles (SiCp). Wear behavior of ZA43 MMCs is evaluated by conducting dry sliding wear test using a pin-on-disc wear test rig. The tests were conducted for varying loads of 9.81, 19.62, 29.43 and 39.24 N and sliding disc speeds of 2.12, 2.93, 3.66, 4.39 and 5.13 m/s at constant time of 15 min. The results reveal that the wear resistance property of the composite increases as the percentage of reinforcement increases. It was also observed that volume loss increases with increasing applied load and sliding speed. The tested samples were examined and analyzed by taking scanning electron micrographs. The dominating wear mechanisms observed were delamination, scissoring of the abrasive particle, pullout of particle, smearing of the surface and abrasion.

Fabrication and characterization of SiC-reinforced Al-4032 metal matrix composites

2022 ◽  
Author(s):  
Pardeep Saini ◽  
Pradeep K. Singh
Keyword(s):  
Impact Toughness ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Low Cost ◽  
Matrix Material ◽  
Stir Casting ◽  
Optical Microscope ◽  
Matrix Composites ◽  
Sic Composites ◽  
The Impact

Abstract Aluminium metal matrix composites (AMCs) have become quite popular for light weight, low cost, and good workability. The present work reports the impact of silicon carbide (SiC) reinforcement on the physical, microstructural, and mechanical characteristics of Al-4032/SiC composites with 4, 6, 8% of SiC (particle size 54μm) fabricated through bottom pouring stir casting. Density and porosity measurements of all three AMCs have been performed using the rule of mixture. The microstructure of the AMC samples has been analyzed using an optical microscope (OM), x-ray diffraction analysis (XRD), and scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). The mechanical properties, in terms of the ultimate tensile strength (UTS), elongation, micro-hardness, and impact toughness of the AMCs have also been obtained according to American society for testing and materials (ASTM) standards. A maximum 1.52% increase in theoretical density, while a maximum 2.92% decrease in experimental density has been recorded for 8% reinforcement. The UTS, microhardness, and impact toughness of the AMC have been found to improve significantly owing to the addition of ceramic particles. The uniform distribution of SiC particles all over base Al-4032 matrix material has been noticed by SEM and OM for AMCs up to 6% reinforcement.

An Investigation of Mechanical Properties on Aluminium 6061 Reinforced with Silicon Carbide - Metal Matrix Composites

2015 ◽  
Vol 787 ◽  
pp. 568-572 ◽  
Author(s):  
A. Radha ◽  
K.R. Vijayakumar
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Metal Matrix ◽  
Charpy Impact ◽  
Vortex Method ◽  
Weight Fraction ◽  
Stir Casting ◽  
Matrix Composites ◽  
Casting Technique ◽  
High Fatigue

Composite materials like Aluminium metal matrix composite is playing a very important role in manufacturing industries e.g. automobile and aerospace industries, due to their superior properties such as light weight, low density, high specific modulus, high fatigue strength etc., In this study Aluminium(Al 6061) is reinforced with Silicon Carbide particles and fabricated by Stir Casting Technique (vortex method). The MMC rectangular bars (samples) are prepared with Al6061 and SiC (28 µ size) as the reinforced particles by weight fraction from 0%, 5%, 10%, and 15% of SiC. The microstructure analysis and Mechanical properties like Tensile Strength, Vickers Hardness and Charpy Impact Strength were investigated on prepared specimens. It is observed that the properties are increased with increasing of reinforced specimens by weight fraction.

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