scholarly journals ALFA: Fly Ash - Aluminium Metal Matrix Composites for Light Weight Material

2019 ◽  
Vol 8 (3) ◽  
pp. 8897-8898
Keyword(s):  
Fly Ash ◽  
Impact Energy ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Ash Content ◽  
Phase Identification ◽  
Light Weight ◽  
Matrix Composites ◽  
The Impact ◽  
Aluminium Metal

In the present work, properties such as wear rate, hardness, impact energy and microstructure of the Aluminum-fly ash composite synthesized by stir casting were investigated by varying the fly ash in the range of 5 and 15 by weight %. The phase identification and structural characterization was carried out on ALFA composites using SEM and EDAX tests and it was found that there was a uniform distribution of fly ash particles in the aluminum matrix phase. The hardness and the wear resistance increased and the impact energy decreased as the fly ash content in the ALFA composite was increased and it can be used as a light weight material for many engineering and non-engineering applications

Influence of Graphite Reinforcement on Mechanical Properties of Aluminum-Boron Carbide Composites

2013 ◽  
Vol 845 ◽  
pp. 398-402 ◽  
Author(s):  
Chinnasamy Muthazhagan ◽  
A. Gnanavelbabu ◽  
G.B. Bhaskar ◽  
K. Rajkumar
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Boron Carbide ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Matrix Composites ◽  
Casting Method ◽  
Volume Percentage ◽  
Conventional Heat Treatment ◽  
Aluminium Metal

This paper deals with the mechanical properties in conventional heat treatment of Al (6061)-B4C-Graphite. Aluminium Metal Matrix Composites (MMC) is fabricated through two step stir casting method. The composites were fabricated with various volume percentage levels as Aluminium reinforced with (5, 10 &15%) Boron Carbide and (5,10 & 15%) of Graphite. Fabricated composites were subjected to conventional heat treatment for enhancing the mechanical properties. Influences of Graphite reinforcement on mechanical properties of Aluminum-Boron carbide composites were analyzed. The microstructure studies were also carried out. It is observed that increasing the graphite content within the aluminum matrix results in significant decrease in ductility, hardness, ultimate tensile strength. The addition of boron carbide conversely increased the hardness of the composites.

scholarly journals A brief review on mechanical properties of Al-MMCs fabricated by stir casting route & applications

2021 ◽  
Vol 309 ◽  
pp. 01227
Author(s):  
Abhishek Thakur ◽  
Ravinder Singh Joshi ◽  
Arshpreet Singh
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Fly Ash ◽  
Chemical Composition ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Stir Casting ◽  
Second Phase ◽  
Matrix Composites ◽  
Aluminium Metal

Aluminium metal matrix composites are pretty much important in the different demanding sectors such as in the field of medicine and engineering like automobiles, aerospace, defence, dental and consumer goods. The need arises due to its huge calibre in industrial need of good materials with lighter weight, excellent properties and economical in cost demanded the researchers or scientists research on composite materials. The AMMCs or Al-MMCs consists of an apex variety of mechanical properties which is directly proportional to the chemical composition of the Aluminium matrix. To enhance strength the reinforcement plays a key role in AMMCs could be in the form of continuous/ discontinuous fibres, whiskers & particulate as the second phase depending on their applications and property requirements. In addition to it, various strength enhancers are reinforcements such as fly ash, TiC, SiC, Al2O3, TiO2, B4C etc. This paper attempts to review the different combinations in the processing of aluminium metal matrix composites along with their properties and their applications.

scholarly journals Optimization of Machining Parameters in Drilling of Aluminum Matrix Composites (LM6/Fly Ash) utilizing Taguchi Technique

2019 ◽  
Vol 9 (2) ◽  
pp. 1229-1232 ◽  
Keyword(s):  
Fly Ash ◽  
Thrust Force ◽  
Matrix Material ◽  
Aluminum Matrix ◽  
Casting Process ◽  
Stir Casting ◽  
Aluminum Matrix Composites ◽  
Feed Speed ◽  
Machining Parameters ◽  
The Impact

The present study revolves around the possibility of setting machining parameters in the drilling of composites of aluminum matrix (LM6/Fly ash) using the signal to noise ratio analysis. The aim of this work is to consider, the impact of input parameters, feed, speed, drill and percentage of composite material reinforcement on thrust force during AMCs drilling. AMCs were manufactured by the stir casting process with LM6 aluminium alloy as matrix material and fly ash as reinforcement material. Investigations were directed on a CNC vertical machining center for estimating thrust force. The Taguchi strategy for trial configuration is a generally admitted system employed for delivering great items requiring less effort. In the same way, L27 orthogonal array is employed for the analyses. The response table, graphs and variance analyzes are used to demonstrate the potential environment and the effects of machining parameters. It is evident that there is a tremendous improvement in the drilling procedure by using this methodology.

scholarly journals Utilisation of fly ash as a potential reinforcement material for better mechanical properties of Aluminum

2020 ◽  
Vol 5 (3) ◽  
pp. 23-27
Author(s):  
Akshat Jain ◽  
◽  
Md. Tarique ◽  
Mayank Saxena ◽  
Md. Rafi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Metal Matrix ◽  
Mechanical Characterization ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Matrix Composites ◽  
Reinforcement Material ◽  
Lightweight Alloys ◽  
Strength And Durability

The remarkable strength and durability characteristics found in lightweight alloys-based Metal Matrix Composites (MMC) assisted in enhancing their widespread use in automobile, aircraft, and marine sectors. The present study consists of utilizing a conventional stir casting setup for fabricating Aluminium-based MMCs having fly ash as reinforcement. The fly ash was reinforced with an aluminum matrix in proportions: 2, 4, and 6 % to get three different homogeneous samples of MMCs. The prepared samples were examined for microstructure and mechanical characterization. The MMCs samples exhibited successful incorporation and homogeneous dispersion of fly ash particles. The fly ash addition assisted in enhancing the hardness and decrease in strength of aluminum MMCs.

scholarly journals Mechanical Properties, Tribology and Electrochemical Studies of Al/Fly Ash/Eggshell Aluminium Matrix Composite

2021 ◽  
Vol 12 (4) ◽  
pp. 4900-4919
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Aluminum Matrix ◽  
Weight Fraction ◽  
Xrd Analysis ◽  
Stir Casting ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Cast Aluminum ◽  
Aluminium Matrix Composite

This work was carried out to investigate the effect of carbonized eggshells (CES) and fly ash on the microstructure, mechanical properties, wear, and corrosion characteristics of Al-Si12. The weight fraction (wt.%) of the CES particles was kept constant at 2.5 wt.%, while that of fly ash was varied at 2.5 wt.%, 5.0 wt.%, 7.5 wt.%, and 10.0 wt.%. The selected fabrication route was stir casting. The x-ray diffraction (XRD) analysis of the cast aluminum matrix composites (AMCs) revealed the presence of phases including α-aluminum, SiO2, and Si with the formation of the intermetallic CuAl2 phase. The microhardness of the cast samples increased with increasing weight fraction of the reinforcements up to the 7.5 wt.% fly ash sample. The tensile strength and compressive strength were highest for the 2.5 wt.%/CES 2.5 wt.%. Tribology studies showed that the lowest wear rate of 4.91 × 10-5 mm3/Nmm was obtained for the 2.5 wt.% fly ash sample, while the corrosion studies showed that the corrosion rate of 2.70 × 10-5 g/hr was lowest for the 2.5 wt.% fly ash as well.

Development of Light Weight AA2024 Alpha Composites

2011 ◽  
Vol 690 ◽  
pp. 258-261 ◽  
Author(s):  
Jinugu Babu Rao ◽  
D. Venkata Rao ◽  
G. J. Catherin ◽  
N.R.M.R. Bhargava
Keyword(s):  
Fly Ash ◽  
Low Cost ◽  
Stir Casting ◽  
Phase Identification ◽  
Matrix Composites ◽  
Compression Tests ◽  
2024 Alloy ◽  
The Matrix ◽  
Aa 2024 ◽  
The Cost

Composites are most promising materials of recent interest. Metal matrix composites (MMCs) possess significantly improved properties compared to unreinforced alloys. There has been an increasing interest in composites containing low density and low cost reinforcements. Hence, composites with fly ash as reinforcement are likely to over come the cost barrier for wide spread applications in automotive and small engine applications. AA 2024 alloy – 2 to 10% (by weight) fly ash composites were made by stir casting route. Phase identification and structural characterization was carried out on fly ash by X-ray diffraction studies. Scanning electron microscopy and optical microscopy was used for microstructure analysis. The hardness, density and compression tests were carried out on all these alloy and composites. The SEM studies reveal that there was a uniform distribution of fly ash particles in the matrix phase and also very good bonding exists between the matrix and reinforcement. With increasing the amount of fly ash the density of the composites was decreased and the hardness was increased. The increase in compression strength was observed with increase in amount of fly ash.

scholarly journals A Comparative Study of the Impact of the Stirrer Design in the Stir Casting Route to Produce Metal Matrix Composites

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Farooq Muhammad ◽  
Shawnam Jalal
Keyword(s):  
Mechanical Characteristics ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Alloy Matrix ◽  
Vast Number ◽  
Study Results ◽  
Numerical Software ◽  
The Impact

Aluminum matrix composites are widely utilized in many sectors, and their popularity is rising due to their ability to combine high mechanical characteristics with their lightweight. Stir casting is typically achieved in a closed crucible with an invisible flow pattern to produce aluminum alloy matrix composites. Researchers employed a hybrid method to optimize the stir casting parameters. The vast number of parameters and their overlap affects the uniform distribution of reinforcement particles. Investigators on their way to the best technique have gotten promising outcomes in their specific situations, but they still need more work to be able to generalize their findings to optimize the stirrer design to get efficient mixing. Due to an experimental technique alone is insufficient for optimizing stir casting parameters, researchers combined theoretical, experimental, statistical, and numerical simulation approaches to get more precise and reliable findings. The design of the experiment (DOE), particularly Taguchi, and other standard statistics such as ANOVA and regression were discovered to be the most often utilized statistical contributions. Recent attempts to simulate stir casting have begun to match the experimental or analog model data by developed numerical software and analytical analysis. Finally, previous study results and suggestions were collected and compared, arranged, revised, and presented simply about the proper stirrer design, stages, and position in that to make the paper unique.

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