scholarly journals EFFECT OF CHICKEN BONE ASH ON MECHANICAL PROPERTIES OF Al 8011 REINFORCED WITH SILICON CARBIDE

Author(s):  
NITHYANANDHAN T ◽  
◽  
RAMAMOORTHI R ◽  

To deal with demands in advanced engineering applications that focus on improved mechanical properties of metal composites, aluminium metal matrix composites are recommended. This paper deals with mechanical characteristics of aluminium (Al8011) fortified with silicon carbide (SiC) and Chicken Bone Ash (CBA).Varying percentages of silicon carbide starting from 0%, 2%, 4%, 6%, 8% and 10% with percentages of chicken bone ash starting from 10%, 8%, 6%, 4%, 2% and 0% respectively for the purpose of testing and reinforcement. Stir casting method is employed to manufacture the components. In this paper, fatigue test, impact test and hardness test is carried out to obtain results about the mechanical characteristics of the components. The mechanical characteristics observed in the resultant composites as per ASTM standards and microstructural study is used to characterize the distribution of reinforcements. Ultimately as the weight percentage of reinforcement materials increases, elevation in mechanical characteristics of material is discerned.

2020 ◽  
Vol 8 (6) ◽  
pp. 1191-1195

This paper focuses the Mechanical properties and tribological behaviour of aluminium (6063) metal which are reinforced with silicon carbide and graphite. Different percentages like7 %, 10%, 12% of silicon carbide and 3%, 5%, 8% of Graphite were added for reinforcement. The manufacturing of components is made by using stir casting method. Mechanical properties like (fatigue, impact, micro structure) and wear test are carried out in this paper. The result concluded that there is an increase in the mechanical and tribological properties with increase in weight percentage of reinforcement.


2019 ◽  
Vol 25 (4) ◽  
pp. 253 ◽  
Author(s):  
Manoj Kumar Pal ◽  
Arnav Vikram ◽  
Vineet Bajaj

<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>


2015 ◽  
Vol 787 ◽  
pp. 568-572 ◽  
Author(s):  
A. Radha ◽  
K.R. Vijayakumar

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.


The present work was planned to evaluate the mechanical properties of alumina reinforced aluminium alloy such hardness and compression behavior of al2o3 /aa7075 alloy metal matrix composites. Both, experimental and finite element analyses were carried out to establish tensile behaviour of the composites with different weight percentage of al2o3 fabricated by the stir casting process. The results concluded that addition of alumina to the aa7075 improves the mechanical properties of the composite. Further the results of FEA simulation of the composites are close to the actual results which shows that cost and time can be reduced if FEA is performed


2019 ◽  
Vol 969 ◽  
pp. 122-127
Author(s):  
B.N. Anjan ◽  
G.V. Preetham Kumar

Zinc aluminum based matrix composites reinforced with SiC and Al2O3 particles have significant applications in the automobile field. Stir casting method followed by squeeze process was used for fabrication. ZA27 composites reinforced with SiC and Al2O3 particles (20-50µm) in various weight percentage (wt%) ranges from 0-10 in a step of 5 each was fabricated. OM, SEM and EDS analysis of microstructures obtained for matrix alloy and reinforced composites were performed in order to know the effect of varying wt% on physical and mechanical properties of composites. Squeeze casting technique shows better features such as fine microstructure as a result of low porosity and good bonding between matrix and reinforcement. Addition of reinforcements decreased the densities of matrix alloy. SiC reinforced composites showed better results as compared with Al2O3 reinforced ones. Hardness and ultimate tensile strength value of 10 wt% reinforced composites showed improved results.


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 ◽  
...  

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.


2015 ◽  
Vol 813-814 ◽  
pp. 230-234 ◽  
Author(s):  
T.S.A. Suryakumari ◽  
S. Ranganathan ◽  
P. Shankar

The present investigation involves studying the mechanical properties of the fabricated aluminium 7075 hybrid metal matrix composites reinforced with various weight % of SiC and Al2 O3 particulates by stir casting method. The Al 7075 hybrid metal matrix composites specimen were fabricated using L9 orthogonal array. The mechanical properties like Brinell Harness (BHN), Rockwell Hardness (HRC) and impact loads were experimented. The mechanical properties like hardness and impact loads have improved with the increase in weight percentage of SiC and Al2O3 particulates in the hybrid aluminium matrix.


2019 ◽  
Vol 821 ◽  
pp. 81-88 ◽  
Author(s):  
Samuel Olukayode Akinwamide ◽  
Serge Mudinga Lemika ◽  
Babatunde J. Obadele ◽  
Ojo Jeremiah Akinribide ◽  
Oluwasegun Eso Falodun ◽  
...  

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.


2014 ◽  
Vol 592-594 ◽  
pp. 705-710 ◽  
Author(s):  
S. Dhanalakshmi ◽  
N Mohanasundararaju ◽  
P.G. Venkatakrishnan

A hybrid Al7075 metal matrix composites have been fabricated through liquid metallurgy route (Stir Casting method) using Al2O3 and B4C as reinforcement materials. The effect of weight percentage of reinforcement materials on mechanical properties of the composites have been studied by varying the weight percentage of Al2O3 as 3, 6, 9, 12 and 15% while keeping constant weight percentage of B4C (3%). The as-cast microstructure, tensile strength, micro and macro hardness of the fabricated hybrid composites have been studied. The mechanical properties of the prepared composites were increased with increasing the weight percentage of the reinforcement in the composite. The maximum tensile strength, micro-hardness and macro-hardness of 309 MPa, 140 VHN, and 112 BHN, respectively, were obtained for a hybrid Al7075 matrix composite containing 15% Al2O3 and 3% B4C.


2014 ◽  
Vol 984-985 ◽  
pp. 326-330
Author(s):  
T.M. Chenthil Jegan ◽  
D. Ravindran ◽  
M. Dev Anand

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.


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