Fabrication and Characterization of Hot Rolled and Hot Extruded Boron Carbide (B4C) Reinforced A356 Aluminum Alloy Matrix Composites Produced by Stir Casting Method

2016 ◽  
Vol 70 (6) ◽  
pp. 1635-1646 ◽  
Author(s):  
Meghdad Khademian ◽  
Ali Alizadeh ◽  
Alireza Abdollahi
Keyword(s):  
Stir Casting ◽  
Matrix Composites ◽  
A356 Aluminum Alloy ◽  
Casting Method ◽  
Alloy Matrix ◽  
Fabrication And Characterization ◽  
A356 Aluminum ◽  
Hot Rolled ◽  
Boron Carbide B4c

Fabrication and Characterization of MMCs Using Stir Casting Method

2014 ◽  
Vol 4 (3) ◽  
pp. 27-32
Author(s):  
Jeevan Singh Bisht ◽  
◽  
Akshay Dvivedi ◽  
Apurbba Kumar Sharma ◽  
◽  
...  
Keyword(s):  
Stir Casting ◽  
Casting Method ◽  
Fabrication And Characterization

Production of Al Metal Matrix Composites by the Stir-Casting Method

2013 ◽  
Vol 592-593 ◽  
pp. 614-617 ◽  
Author(s):  
Konstantinos Anthymidis ◽  
Kostas David ◽  
Pavlos Agrianidis ◽  
Afroditi Trakali
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Automobile Industry ◽  
Metal Matrix ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Casting Method ◽  
Alloy Matrix

It is well known that the addition of ceramic phases in an alloy e.g. aluminum, in form of fibers or particles influences its mechanical properties. This leads to a new generation of materials, which are called metal matrix composites (MMCs). They have found a lot of application during the last twenty-five years due to their low density, high strength and toughness, good fatigue and wear resistance. Aluminum matrix composites reinforced by ceramic particles are well known for their good thermophysical and mechanical properties. As a result, during the last years, there has been a considerable interest in using aluminum metal matrix composites in the automobile industry. Automobile industry use aluminum alloy matrix composites reinforced with SiC or Al2O3 particles for the production of pistons, brake rotors, calipers and liners. However, no reference could be cited in the international literature concerning aluminum reinforced with TiB particles and Fe and Cr, although these composites are very promising for improving the mechanical properties of this metal without significantly alter its corrosion behavior. Several processing techniques have been developed for the production of reinforced aluminum alloys. This paper is concerned with the study of TiB, Fe and Cr reinforced aluminum produced by the stir-casting method.

Fabrication and Characterization of A356-Basalt Ash-Fly Ash Composites Processed by Stir Casting Method

2017 ◽  
Vol 25 (3) ◽  
pp. 209-214 ◽  
Author(s):  
G. Venkatachalam ◽  
A. Kumaravel
Keyword(s):  
Fly Ash ◽  
Impact Strength ◽  
Hybrid Composites ◽  
Cost Effective ◽  
Weight Fraction ◽  
Stir Casting ◽  
Matrix Composites ◽  
Casting Method ◽  
The Matrix

This paper presents the characterization of A356 composite reinforced with fly ash and basalt ash produced by stir casting method. Aluminium metal matrix composites (AMC) are used in wide variety of applications such as structural, aerospace, marine, automotive etc. Stir casting is cost effective manufacturing process and it is useful to enhance the attractive properties of AMCs. Three sets of hybrid AMC are prepared by varying the weight fraction of the reinforcements (3% basalt + 7% fly ash, 5% basalt + 5% fly, 7% basalt + 3% fly ash). The effect of reinforcements on the mechanical properties of the hybrid composites such as hardness, tensile, compressive and impact strength were studied. The obtained results reveal that tensile, compressive and impact strength was increased when weight fraction of fly ash increased, whereas the hardness increases when weight fraction of the basalt ash increased. Microscopic study reveals the dispersion of the reinforcements in the matrix.

Regression Modeling and Experimental Investigations on Ageing Behavior of Nano-Fly Ash Reinforced Al-10wt%Mg Alloy Matrix Composites

2018 ◽  
Vol 6 (2) ◽  
pp. 36-49
Author(s):  
Srinivasa Prasad Katrenipadu ◽  
Swami Naidu Gurugubelli
Keyword(s):  
Fly Ash ◽  
Regression Model ◽  
Weight Fraction ◽  
Stir Casting ◽  
Mg Alloy ◽  
Peak Hardness ◽  
Experimental Investigations ◽  
Matrix Composites ◽  
Casting Method ◽  
Alloy Matrix

Nano-fly ash particles reinforced Al-10wt%Mg alloy matrix composites produced by stir-casting method were tested for their ageing response. Ageing studies were performed at 160 °C, 200 °C and 240 °C temperatures and a maximum peak hardness of 142 VHN was observed during ageing at 200 °C for the composite with 10 wt% nano fly ash reinforcement. This is due to rapid nucleation and growth of βI particles at this temperature. Experiments were designed for different compositions and different ageing temperatures on the basis of the Design of Experiments technique. The factorial design is considered to improve the reliability of results and to reduce the size of experimentation without loss of accuracy. A model to predict the ageing behaviour of the composites was developed with the terms of 5, 10 and 15% weight fraction of fly ash at 160 °C, 200 °C and 240 °C ageing temperatures. The developed regression model was validated by statistical software MINITAB-R17.1.0. It was found that the developed regression model could be effectively used to predict the ageing behavior at 95% confidence level.

Metallurgical and Mechanical Characterization of Al 6082-B4C/Si3N4 Hybrid Composite Manufactured by Combined Ball Milling and Stir Casting

2014 ◽  
Vol 592-594 ◽  
pp. 484-488 ◽  
Author(s):  
Pardeep Sharma ◽  
Dinesh Khanduja ◽  
Satpal Sharma
Keyword(s):  
Ball Milling ◽  
Mechanical Characterization ◽  
Hybrid Composites ◽  
Stir Casting ◽  
Matrix Composites ◽  
Casting Method ◽  
Percentage Elongation ◽  
Silicon Nitride Powder ◽  
The Cost

Aluminium matrix composites (AMCs) having more than one reinforcement (hybrid AMCs) found enlarged use due to better strength, high thermal stability and wear resistance properties and can be a substitute for single reinforced AMCs .The effect of varying ball milled (BM) B4C/Si3N4 particles on the microstructure of as cast AA6082 and mechanical properties of AA6082 alloy hybrid composites produced by combined ball milling and conventional stir casting method have been reported. The combined reinforcement of BM B4C/Si3N4 particles were varied from 0-9 % in a step of 3. The wettability of B4C/Si3N4 into the aluminium melt has been increased by ball milling the boron carbide with silicon nitride powder, so that combined reinforcement of B4C/Si3N4 neither float nor sink in the aluminium melt. The investigated result showed that addition of combined reinforcement of BM B4C/Si3N4 increased Hardness and Ultimate tensile strength at the cost of reduction in percentage elongation.

scholarly journals Synthesis, Characterization and Testing of Al Alloy Based Hybrid Composite Materials

2019 ◽  
Vol 9 (2S2) ◽  
pp. 139-142
Keyword(s):  
Composite Materials ◽  
Casting Process ◽  
Stir Casting ◽  
Homogeneous Distribution ◽  
Al Alloy ◽  
Matrix Composites ◽  
Boron Carbide B4c ◽  
Weight Proportion

The developments in the area of aerospace, advancing activities in aircraft field and automotive industry emerges the exploit of new materials. In such applications, the role of Metal Matrix Composites (MMCs) is inevitable. In the proposed article, the fabrication of Al (6351) alloy reinforced with SiC and varying weight proportion of Boron Carbide (B4C) was done through stir casting process. The characterization of prepared composite materials is evaluated to ensure the homogeneous distribution of reinforced particulates in Al matrix. The existence of alloying elements and their mapping is done through EDS. Moreover, the enhancement of physical and mechanical behavior of the fabricated composites is also discussed in detail.

scholarly journals Fabrication and Characterization of Aluminium-Rice Husk Ash Composite Prepared by Stir Casting Method

2016 ◽  
Vol 44 ◽  
pp. 9-18 ◽  
Author(s):  
Adnan Adib Ahamed ◽  
Rashed Ahmed ◽  
Muhammad Benzir Hossain ◽  
Masum Billah
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Stir Casting ◽  
Matrix Composites ◽  
Casting Method ◽  
Aluminium Matrix Composite ◽  
The Matrix ◽  
Agricultural Byproduct ◽  
Reinforcing Particle

Metal Matrix Composites (MMCs) constitute an important category of design and weight-efficient materials. This article highlights on the work where an attempt is taken to fabricate aluminium matrix composite reinforced with rice husk ash (RHA) particles, an agricultural byproduct with high amount of silica. RHA particles, upon analysis, are incorporated into the Al matrix melt by stir casting. Magnesium (~1%) is used as a wetting agent between matrix and reinforcement. 3, 6 and 9% wt. of RHA are added into the matrix. The microstructure analysis reveals the reinforcing particle distribution inside the matrix which indicates successful fabrication of the composites. The density and mechanical properties such as strength and hardness are measured for both unreinforced metal and composites. The results found in the tests show a decrease in density with increasing reinforcement while increasing yield strength, ultimate strength and hardness of the composites with increasing reinforcement from the unreinforced condition.

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