scholarly journals Review of stir casting technique and technical challenges for ceramic reinforcement particulate and aluminium matrix composites

2020 ◽  
Vol 72 (6) ◽  
pp. 198-204
Author(s):  
Malek Ali
Keyword(s):  
Stir Casting ◽  
Aluminium Matrix ◽  
Matrix Composites ◽  
Aluminium Matrix Composites ◽  
Casting Technique ◽  
Technical Challenges ◽  
Ceramic Reinforcement

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.

Influence of fly ash particles on tensile and impact behaviour of aluminium (Al/3Cu/8.5Si) metal matrix composites

2014 ◽  
Vol 21 (2) ◽  
pp. 181-189 ◽  
Author(s):  
Krishnan Ravi Kumar ◽  
Kothavady Mylsamy Mohanasundaram ◽  
Ramanathan Subramanian ◽  
Balasubramaniam Anandavel
Keyword(s):  
Fly Ash ◽  
Ductile Failure ◽  
Stir Casting ◽  
Aluminium Matrix ◽  
Matrix Composites ◽  
Particle Content ◽  
Impact Behaviour ◽  
Casting Technique ◽  
Unreinforced Material ◽  
The Matrix

AbstractThe present work aimed to study the tensile and impact behaviour of fly ash particle reinforced aluminium matrix composites. Fly ash particles reinforced aluminium (Al/3Cu/8.5Si) matrix composites were fabricated by the stir casting technique. Three different size ranges of fly ash particles (50–75, 75–103 and 103–150 μm) were used. The composites were subjected to tensile and impact tests. The tensile and impact fracture surfaces of the aluminium alloy and composites were investigated using a scanning electron microscope to characterise the fracture mechanism of the composites. The tensile strength of composites increased, while the ductility and impact strength of composites decreased with an increase in fly ash particle content. The fracture surface of the unreinforced material was characterised by uneven distribution of a large number of dimples resulting in ductile failure. In the case of composites, the presence of hard and brittle reinforcement particles in the ductile aluminium matrix places constraints on the plastic flow of the matrix leading to brittle failure with an increase in fly ash particles.

Research Progress on Plastic Processing Techniques of Particulate Reinforced Aluminium Matrix Composites

2017 ◽  
Vol 898 ◽  
pp. 971-983 ◽  
Author(s):  
Hai Bao Wu ◽  
De Fu Li ◽  
Xing Gang Li ◽  
Guo Qiang Chai
Keyword(s):  
Material Properties ◽  
Spray Deposition ◽  
Stir Casting ◽  
Research Progress ◽  
Aluminium Matrix ◽  
Matrix Composites ◽  
Aluminium Matrix Composites ◽  
Low Thermal Expansion ◽  
Plastic Processing ◽  
Particulate Reinforced

Particulate Reinforced Aluminium Matrix Composites (PRAMCs) have been widely applied in military and civilian areas such as aviation, aerospace, advanced weapon applications and electrical industries due to their good mechanical properties at elevated temperature, low thermal expansion coefficient, excellent wear resistance and low production cost. The main preparation techniques of the PRAMCs include stir casting, powder metallurgy, pressureless infiltration and spray deposition. However, the problems such as low densification and particle cluster encountered in these techniques often reduce the material properties. It has reported that the homogeneity of the distribution of particulate reinforcements in metal matrix can be improved by plastic processing, thus enhancing the material densification. This paper summarized recent progress in the plastic processing methods of the PRAMCs, with an emphasis on the spinning technique. The effects of various process parameters on the material properties were discussed in detail. A summary of research progress on the numerical simulation of plastic processing of the PRAMCs was presented. In the end, an outlook was given on the prospect of the PRAMCs’ development.

Effect of Weight Percentage on Mechanical Properties of Boron Carbide Particulate Reinforced Aluminium Matrix Composites

2014 ◽  
Vol 612 ◽  
pp. 151-155 ◽  
Author(s):  
S Dhinakaran ◽  
T.V. Moorthy
Keyword(s):  
Mechanical Properties ◽  
Stir Casting ◽  
Vital Role ◽  
Aluminium Matrix ◽  
Matrix Composites ◽  
Sem Images ◽  
Aluminium Matrix Composites ◽  
Weight Percentage ◽  
The Matrix ◽  
Particulate Reinforced

Aluminium matrix composites (AMCs) play a vital role as advanced engineering materials due to their excellent mechanical properties like light weight, strength, wear resistance, toughness. This work focuses on the fabrication of aluminium (AA6061) matrix composites reinforced with 3%, 6% and 9% B4C particle of 104μm using stir casting method. The wettability of B4C particles in the matrix has been improved by adding K2TiF6flux in to the molten metal. The microstructure and mechanical properties of the fabricated AMCs are analyzed. Uniform distribution of B4C particle in the matrix was confirmed using scanning electron microscope (SEM) images. It was found that the tensile strength and hardness of the fabricated AMCs increases with increased B4C particle content.

scholarly journals Property Enhancement of Aluminium Based MMCs with Various Reinforcements

2019 ◽  
Vol 9 (2S2) ◽  
pp. 539-546
Keyword(s):  
Aluminium Alloys ◽  
Review Paper ◽  
Low Cost ◽  
Stir Casting ◽  
Aluminium Matrix ◽  
Manufacturing Processes ◽  
Matrix Composites ◽  
Aluminium Matrix Composites ◽  
Mechanical And Tribological Properties ◽  
Structural Applications

Aluminium Matrix Composites are used in a wide variety of fields like Aerospace, Marine, Automotive industries, structural applications, etc. This review paper is concerned with the different Aluminium alloys with various reinforcements and studies the properties like strength, stiffness, hardness, wear rate and porosity. It mainly aimed at the evolution of Aluminium Matrix composites in the Aviation sector. The need for better performance, low cost and quite quality materials are upgraded by the latest MMCs and novel manufacturing processes. With the reinforcements like Silicon Carbide, Boron Carbide, Titanium Oxide, etc. improved the mechanical and tribological properties of MMCs. Likewise, the Fabrication Techniques such as Powder Metallurgy as well as stir casting improved the performance of MMCs.

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