Manufacturing, Microstructural and Mechanical Characterization of Stir Cast Aluminium 7075/SiC Metal Matrix Composite

2021 ◽  
Vol 106 ◽  
pp. 84-89
Author(s):  
Mulugundam Siva Surya ◽  
G. Prasanthi ◽  
I. Chidwilas
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Metal Matrix ◽  
High Strength ◽  
Stir Casting ◽  
Aluminium Matrix ◽  
Matrix Composites ◽  
Mechanical Stirring ◽  
Sic Particles ◽  
Sic Particle

Aluminium Matrix Composites (AMCs) are known as lightweight and high-strength materials with potential applications in areas such as aerospace, automobile, defence, engineering, and other industries. AMCs have the advantage of significantly reduce the overall weight of the vehicles and aircraft while maintaining their structural strength. The scope of this work is to fabricate Silicon Carbide (SiC) particle Metal Matrix Composites (MMC) by stir casting combined with mechanical stirring and to investigate the effect of SiC particles on the hardness, tensile and impact the behaviour of SiC particle reinforced 7075 aluminium alloy composites. The reinforcement of micron-sized range particles with an aluminium matrix is expected to improve the mechanical properties in composite materials. Different weight % of SiC particles are used (0, 5, 10, and 15 wt. %) for the synthesis of composites. The manufactured composites were tested to determine their mechanical properties and the results prove that the sample with 10 percentage of silicon carbide has better mechanical properties, comparably.

Material Characterization Study on Aluminium Metal Matrix Composites by Enhanced Stir Casting Method

2014 ◽  
Vol 984-985 ◽  
pp. 326-330
Author(s):  
T.M. Chenthil Jegan ◽  
D. Ravindran ◽  
M. Dev Anand
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Tensile Strength ◽  
Boron Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Stir Casting ◽  
Aluminium Matrix ◽  
Matrix Composites ◽  
Casting Method

Metal Matrix Composites possesses high mechanical properties compared to unreinforced materials. Aluminium Matrix Composites (AMC) is attracted in the emerging world because of its low cost, less weight and enhanced mechanical properties. In the present study the enhancement in mechanical properties like hardness and tensile strength of AMCs by reinforcing AA 6061 matrix with silicon carbide (SiC) and boron carbide (B4C) particles are analyzed. By enhanced stir casting method aluminium matrix was reinforced with boron carbide particulates and silicon carbide particulates with the various weight percentage of 2.5 %,5% and 7.5%.The tensile strength and hardness was found to increase with the increase in wt% of the reinforcement. From the analysis it is observed that the mechanical property of B4C reinforced AMC is significantly good compared to SiC reinforced AMC.

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.

scholarly journals Aluminum Based Metal Matrix Composites Behavioral Studies with Different Reinforcements- A Review

2021 ◽  
Vol 9 (10) ◽  
pp. 1816-1822
Author(s):  
Paramjit Singh
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix ◽  
Density Ratio ◽  
High Strength ◽  
Stir Casting ◽  
Matrix Composites ◽  
Wear Properties ◽  
Mechanical And Tribological Properties ◽  
Behavioral Studies ◽  
Transportation Applications

Abstract: Aluminum alloy’s widely employed in transportation applications like: aerospace, aviation, marine and automobile sector due to their good mechanical properties, wear properties, corrosion behavior and high strength to density ratio. The current review article mainly highlights the effects of various reinforcements on mechanical and tribological properties of aluminum based metal matrix composite materials and focuses on the types of different reinforcements. Review revealed that, there is significant improvement in mechanical properties of AMMC’s with different reinforcements as compared to traditional base alloys. The reinforcements may be SiC, TiO2 , Al2O3 , fly ash, B4C, fiber, Zircon are incorporated in the stir casting or other methods. Keywords: AMMC, Reinforcements, Mechanical properties, Stir casting etc.

Characterization and mechanical response of novel Al-(Mg–TiFe–SiC) metal matrix composites developed by stir casting technique

2019 ◽  
Vol 53 (28-30) ◽  
pp. 3929-3938 ◽  
Author(s):  
Samuel O Akinwamide ◽  
Serge M Lemika ◽  
Babatunde A Obadele ◽  
Ojo J Akinribide ◽  
Bolanle T Abe ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Metal Matrix ◽  
Mechanical Response ◽  
Frictional Coefficient ◽  
Stir Casting ◽  
Matrix Composites ◽  
Tribological Behaviour ◽  
Casting Technique ◽  
Electron Microscopes

This study was conducted to investigate the synthesis, characterization and mechanical properties of aluminium reinforced with ferrotitanium and silicon carbide via stir casting technique. Microstructures of as-cast samples were analysed using optical and scanning electron microscopes equipped with energy-dispersive X-ray spectroscopy. The mechanical properties in terms of hardness, tensile, tribological behaviour and fracture were assessed. Results showed that the homogeneous dispersion of reinforcement was within the metal matrix composite. Tribological study revealed a decrease in frictional coefficient of the composites with lowest frictional coefficient observed in composite with addition of silicon carbide as reinforcement. Morphology of fractured surface displayed a reduction in the size of dimples formed in reinforced aluminium composites when compared with larger dimple sizes observed in as-cast aluminium alloy.

A Nanoindentation Study on Al (TiFe-Mg-SiC) Composites Fabricated via Stir Casting

2019 ◽  
Vol 821 ◽  
pp. 81-88 ◽  
Author(s):  
Samuel Olukayode Akinwamide ◽  
Serge Mudinga Lemika ◽  
Babatunde J. Obadele ◽  
Ojo Jeremiah Akinribide ◽  
Oluwasegun Eso Falodun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Elastic Modulus ◽  
Stir Casting ◽  
Aluminium Matrix ◽  
Matrix Composites ◽  
Aluminium Matrix Composites ◽  
Maximum Penetration Depth ◽  
Maximum Penetration ◽  
Sic Composites

The limitations of aluminium in most engineering applications has led to the development of aluminium matrix composites with improved microstructural and mechanical properties. Nanoindentation techniques was used in assessing the mechanical properties of fabricated aluminium matrix composites with ferrotitanium and silicon carbide as reinforcements. Results from nanoindentation experiments shows the dependence of modulus of elasticity, microhardness and contact depth on the dispersion of ferrotitanium and silicon carbide reinforcements within the aluminium matrix. Highest nanohardness value was observed in composite with 7 wt. % silicon carbide, while the lowest elastic modulus was recorded in as-cast aluminium. Further analysis of specimens confirmed a decrease in maximum penetration depth with respective increase in the addition of silicon carbide reinforcements in the fabricated composites.

scholarly journals Comparison of Microstructure and Mechanical Properties of A356/SiC Metal Matrix Composites Produced by Two Different Melting Routes

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Shashi Prakash Dwivedi ◽  
Satpal Sharma ◽  
Raghvendra Kumar Mishra
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Weight Percent ◽  
Stir Casting ◽  
Matrix Composites ◽  
Factors Influencing ◽  
Xrd Study ◽  
Sic Particles ◽  
Electromagnetic Stir Casting

A356/SiC metal matrix composites with different weight percent of SiC particles were fabricated by two different techniques such as mechanical stir casting and electromagnetic stir casting. The results of macrostructure, microstructure, and XRD study revealed uniform distribution, grain refinement, and low porosity in electromagnetic stir casing samples. The mechanical results showed that the addition of SiC particles led to the improvement in tensile strength, hardness, toughness, and fatigue life. It indicates that type of fabrication process and percentage of reinforcement are the effective factors influencing the mechanical properties. It is observed that when percentage of reinforcement increases in electromagnetic stir casting, best mechanical properties are obtained.

Evaluation of Mechanical Properties of Aluminum Alloy (Al2024) Reinforced with Silicon Carbide (SiC) Metal Matrix Composites

2017 ◽  
Vol 263 ◽  
pp. 184-188 ◽  
Author(s):  
P. Subramanya Reddy ◽  
R. Kesavan ◽  
B. Vijaya Ramnath
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Tensile Strength ◽  
Aluminum Alloy ◽  
Base Alloy ◽  
Stir Casting ◽  
Matrix Composites ◽  
Alloy Matrix ◽  
Casting Technique ◽  
Sic Particles

The investigation of mechanical properties of silicon carbide (SiC) powders reinforced with aluminum alloy composites are recorded in this paper. SiC powders of approximately 35µm size were added in an aluminum alloy matrix to manufacture the samples of ratios 1, 2, 3 and 4 by weight % using the stir casting technique. The specimens were fabricated and several tests were conducted to evaluate the mechanical properties such as tensile strength, hardness and impact strength and then the values are compared with the base alloy. It has been observed from the results that the hardness, impact energy and tensile strength increases with the increase in % of SiC particles until 2% and drops on further increase in the SiC particles.

scholarly journals ENHANCED MICROSTRUCTURE AND MECHANICAL PROPERTIES OF SiC PARTICLE REINFORCED ALUMINIUM ALLOY COMPOSITE MATERIALS

2019 ◽  
Vol 25 (4) ◽  
pp. 253 ◽  
Author(s):  
Manoj Kumar Pal ◽  
Arnav Vikram ◽  
Vineet Bajaj
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Tensile Strength ◽  
Aluminum Matrix ◽  
Hardness Test ◽  
Stir Casting ◽  
Homogeneous Distribution ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Sic Particles

<p class="AMSmaintext">Aluminium6061 alloy composites containing various volume fractions of Silicon Carbide (SiC) particles (0, 5%, 10%, 15%, 20% and 25%) were prepared by stir casting method. In the current study,<strong> </strong>microstructures and mechanical properties of cast silicon carbide (SiC) reinforced aluminum matrix composites (AMCs) were investigated. Optical microscopic examination, SEM, tensile strength test, hardness test and elongation test were carried out. The results showed that with the addition of SiC reinforcements in Aluminum6061 matrix increased hardness and tensile strength however, decreased elongation at 25% SiC reinforced AMC. Hardness and tensile strength were observed to be are maximum at 25% SiC and elongation is minimum at 25% SiC. Microstructural observation confirmed clustering and homogeneous distribution of SiC particles in the Al6061 matrix.</p>

MECHANICAL PROPERTIES AND MICRO-STRUCTURAL STUDY OF SINTERED ALUMINIUM METAL MATRIX COMPOSITES BY P/M TECHNIQUE

2019 ◽  
Vol 3 ◽  
pp. 89-97
Author(s):  
RAJESH KUMAR BEHERA ◽  
SARAT CHANDRA PANIGRAHI ◽  
BIRAJENDU PRASAD SAMAL ◽  
PRAMOD KUMAR PARIDA
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
High Strength ◽  
Maximum Efficiency ◽  
Manufacturing Cost ◽  
Light Weight ◽  
Matrix Composites ◽  
Aluminium Metal

Material world requires a strong research to produce a new class of materials having light weight, higher strength and better performances. This has been leads to investigate for high strength light weight alloy. The main objective in developing aluminium metal matrix composites is to provide enhanced characteristic performances and properties above the currently available materials.  Based upon the literature a new type of aluminium composite has been tries to develop which will offer attractive mechanical properties such as high strength, easy machinability, appreciable density, and low manufacturing cost etc. Aluminum powders of 99.55% purity and 325 mesh sizes are mixed with alloying metals like Copper, Magnesium, Silicon and Silicon Carbide powders in a precisely controlled quantity. During the process of powder metallurgy (P/M) product preparation, it was minutely observed to attain the maximum efficiency and accuracy. Aluminium (Al) is a light weight material but doesn’t possess a good strength. To achieve this, Copper (Cu), Silicon (Si), Magnesium (Mg) & Silicon Carbide (SiC) powders were blended with it at required proportions. The compaction was carried out with help of a C-45 steel die by power compaction press with a load of 150KN to 250KN. The obtained green products were sintered in a Muffle furnace to produce the final Aluminium Metal Matrix Composites (AMMCs) product.

Development of AA6061/SiCp Metal Matrix Composites by Conventional Stir Casting and Ultrasonic Assisted Casting Routes – A Comparative Study

2014 ◽  
Vol 984-985 ◽  
pp. 384-389 ◽  
Author(s):  
L. Poovazhagan ◽  
K. Kalaichelvan ◽  
V.R. Balaji ◽  
P. Ganesh ◽  
A. Kali Avudaiappan
Keyword(s):  
Mechanical Properties ◽  
Comparative Study ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Stir Casting ◽  
Ultrasonic Cavitation ◽  
Matrix Composites ◽  
Weight Percentage ◽  
Sic Particles ◽  
Ultrasonic Assisted

The major problem associated with the fabrication of cast metal matrix composites is the agglomeration tendency of the particles in the metal matrix. The agglomeration of the particles in the metal matrix greatly reduces the mechanical properties of the fabricated composite materials. In this work, to reduce the agglomeration tendency of SiC particles in Al matrix, different weight percentages of SiC particles reinforced Al composites were fabricated by the conventional stir casting and the ultrasonic cavitation assisted casting routes. Results indicate that in both the methods, particle distribution was uniform upto certain weight percentage after that agglomeration of particles were observed. The mechanical properties of the as-cast composites were superior to that of the as-cast alloys. Composites fabricated by the ultrasonic cavitation method showed slightly better mechanical properties than the composites fabricated by the conventional stir casting route. From the consolidated results it was also observed that 10 weight % of SiCpreinforced composite fabricated by the ultrasonic cavitation method yields the better mechanical properties when compared to the other composites fabricated in this study. Keywords: Metal Matrix Composites, Stir Casting, Ultrasonic Cavitation, Mechanical Properties, Microstructure, Comparative Study

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