scholarly journals Cu Addition Effect Analysis on Matrix Of Remelting Piston Aluminium Composite with Silica Sand Reinsforcement to The Impact Strength and Micro Structure on Aluminuim Matrix Composite Using Stir-Casting Method

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Fajar Paundra ◽  
Teguh Triyono ◽  
Wahyu Purwo Raharjo
Keyword(s):  
Impact Strength ◽  
Matrix Composite ◽  
Testing Machine ◽  
Stir Casting ◽  
Optical Microscope ◽  
Silica Sand ◽  
Casting Method ◽  
Aluminium Matrix Composite ◽  
Effect Analysis ◽  
The Impact

AMC (Aluminium Matrix Composite) is material which has a great potential for being developed. This research was done to find effect added of Cu variation for impact strength and microstructure on Al-Si composite. Mass fractions of sand silika is 3% and Cu variation adding is 0, 1, 2, 3 & 4%. Composite manufacture is using stir casting method with stirring 600 rpm during of 5 minutes on semi solid temperature. Speciments were tested using optical microscope and impact charpy testing machine. The value impact of composite without adding Cu is 0,333 J/mm2 after added Cu value down. Until adding Cu 4% the value impact is 0,104 J/mm2. Micro photograph showed the result of porosity and SiO2 unform distribution with the adding of Cu to the composite. From the test results it is known that the strength of the impact decreases with mass fraction addition Cu. This is because the addition of Cu can increase the porosity and formed CuAl2 phase which are brittle.

Effect of Steel Slag on the Impact Strength of Aluminium Metal Matrix Composite

2015 ◽  
Vol 766-767 ◽  
pp. 240-245 ◽  
Author(s):  
K.S. Sridhar Raja ◽  
V.K. Bupesh Raja ◽  
K.R. Vignesh ◽  
S.N. Ramana Rao
Keyword(s):  
Composite Material ◽  
Impact Strength ◽  
Matrix Composite ◽  
Steel Slag ◽  
High Strength ◽  
Stir Casting ◽  
Aluminium Matrix Composite ◽  
Weight Percentage ◽  
Slag Particle ◽  
The Impact

ABSTRACTAluminium alloys are used in advanced applications because their combination of high strength, low density, and durability. However, the properties of this material can be improved by using aluminium matrix composite materials. By reinforcing hard ceramic particles like SiC, Al2O3and B4C, TiO2 etc the strength of the composite can be enhanced. In this paper an effort is made to enhance the property of AMCs by reinforcing steel slag particle with A356 matrix. By varying the weight percentage of the steel slag the composite material was prepared through stir casting method. The mechanical property like hardness and impact strength of A356 was investigated and compared with that of composite material. The result reveals that by increasing the reinforcement percentage of steel slag the impact strength decreases with the increase in hardness of the composite material. The density is also compared with that of A356 composite.

Effect of silver nanoparticle (AgNp) mixed with calcium carbonate on impact, hardness and tensile strength properties of aluminium 6063

2020 ◽  
pp. 002199832092314
Author(s):  
Adefemi Adeodu ◽  
Lateef Mudashiru ◽  
Ilesanmi Daniyan ◽  
Abdulmalik Awodoyin
Keyword(s):  
Tensile Strength ◽  
Calcium Carbonate ◽  
Aluminium Alloy ◽  
Testing Machine ◽  
Charpy Impact ◽  
Stir Casting ◽  
Optical Microscope ◽  
Tensile Testing Machine ◽  
Casting Technique ◽  
The Impact

Mechanical properties (impact, hardness and tensile strength) characterization of samples containing homogenous mixtures of Al 6063 matrix and varying amount of silver nanoparticles mixed with calcium carbonate at 2, 4, 6% weight fractions, respectively, produced by method of stir casting were carried out. Measurement of impact energy, hardness and tensile strength of the produced samples at 24℃ (ambient) temperature was done by Charpy impact, Brinell hardness and universal tensile testing machine in accordance to ASTM E23, E384 and E8/E8M-13M, respectively. The magnitude of impact and hardness increased evidently with increase in percentage weight fraction of the AgNPs. The refined samples were examined under an optical microscope. The fracture surfaces of the impact test samples were further examined by scanning electron microscopy. There is an increase in tensile strength, elongation and modulus of elasticity of Al-AgNP composites compared to as-cast aluminium alloy. The use of stir-casting technique influences the homogeneity and microstructure of the composites positively. It is concluded that Al-silver nanocomposites possess better qualities in hardness and strength and can replace conventional aluminium alloy in terms of performance and longer life in industrial application.

Analisa pengaruh fraksi massa penguat sio2 terhadap kekuatan impak dan struktur mikro pada komposit matrik aluminium menggunakan metode stir casting

2018 ◽  
Vol 11 (2) ◽  
pp. 56
Author(s):  
Grahardian Adi Kusumo ◽  
Purwadi Joko Widodo ◽  
Wahyu Purwo Raharjo
Keyword(s):  
Matrix Composite ◽  
Testing Machine ◽  
Stir Casting ◽  
Aluminium Matrix ◽  
Aluminium Matrix Composite

AMC (Aluminium Matrix Composite) dengan metode stir casting merupakan salah satu cara terbaik untuk menghasilkan material yang superior. Penelitian ini bertujuan untuk mengetahui pengaruh fraksi massa penguat SiO2 terhadap kekuatan benturan dan struktur mikro pada komposit matriks aluminium. Pada penelitian ini, fraksi massa tulangan bervariasi antara 3%, 6% dan 9%. Pembuatan metode pengadukan menggunakan komposit. Uji spesimen menggunakan optik microsope dan impact charpy testing machine. Hasil penelitian menunjukkan bahwa peningkatan SiO2 dapat meningkatkan kekuatan benturan. Kekuatan benturan tertinggi terjadi pada spesimen 9% fraksi massa SiO2 (0,363 J / mm2). Pengamatan struktur mikro menunjukkan ikatan yang baik antara penguatan dan matriks pada komposit.

Aluminium Metal Matrix Composite: Improving Wear Performance through Treatment

2011 ◽  
Vol 264-265 ◽  
pp. 278-283
Author(s):  
M.A. Maleque ◽  
M.R. Karim ◽  
N. Yassin
Keyword(s):  
Heat Treatment ◽  
Particle Size ◽  
Matrix Composite ◽  
Aluminum Matrix ◽  
Wear Test ◽  
Stir Casting ◽  
Optical Microscope ◽  
Test Machine ◽  
Aluminium Matrix Composite ◽  
Wear Performance

The main objectives of the present study are to develop/manufacture SiC reinforced aluminium matrix composite (SiCp/AMC) with different reinforcement combinations using stir casting method and investigate the effects of heat treatment on wear performance. AMCs were prepared using 20 vol% SiC with three different reinforcement combinations into aluminum matrix. Stir casting is a primary process of composite production whereby the reinforcement ingredient material is incorporated into the molten metal by stirring. The reinforcement combination consists of 20% (single particle size), 7% and 13% (double particle size) and 5%, 5% and 10% (triple particle size). The triple particle size (TPS) composite consist of SiC of three different sizes viz., coarse, intermediate and fine. The solution heat treatment was carried out on cast specimens at 540 0C for four hours followed by precipitation treatment. The wear test was carried out using a pin-ondisc type tribo-test machine under dry sliding condition. The wear morphology of the damaged surface was also studied using optical microscope and scanning electron microscope (SEM) in this investigation.

Mechanical Properties and Wear Characteristic of (Aluminum-Zinc Oxide) Metal Matrix Composite Prepared Using Stir Casting Process

2020 ◽  
Vol 1002 ◽  
pp. 175-184
Author(s):  
Ahlam H. Jasim ◽  
Wafaa M. Joudi ◽  
Nabaa S. Radhi ◽  
Amir N. Saud
Keyword(s):  
Compressive Strength ◽  
Zinc Oxide ◽  
Matrix Composite ◽  
Metallic Matrix ◽  
Stir Casting ◽  
Optical Microscope ◽  
Wear Characteristics ◽  
Weight Percentage ◽  
Zno Particles ◽  
The Impact

The developing of Composites Metallic Matrix for Aluminum (AMMCs) is one of the leading engineering applications requirements because of the excellent mechanical characteristics low weight with high strength for this metal. This research investigated the impact of ZnO particles on the Compressive strength, Hardness, and Wear characteristics of Al metallic matrix composite manufactured by method stir casting. The strengthening added different weight percent (0, 2, 4, 6, 8 and 10) % ZnO. The microstructure of specimens is the analysis by an optical microscope and determines the compressive strength, hardness, and wear characteristics which increase with an increased weight percentage of ZnO. The increase in the percent of Brinell hardness is (15%), (25%), (35%), (40%), and (50%) for aluminium reinforced with 2, 4, 6, 8, 10 wt. % ZnO particles specimens respectively. Finally, it could be found that the volume loss was drastically reduced by raising the amount of zinc oxide, thus exceeding the composite minimum amount, which represents the total percentage of zinc oxide (10 percent).

scholarly journals EFFECT OF REINFORCEMEMT PARTICLES PREHEATING ON MECHANICAL AND MICROSTRUCTURAL PROPERTIES OF AMC

2018 ◽  
Vol 24 (4) ◽  
pp. 337 ◽  
Author(s):  
Romeo Sephyrin Fono-Tamo ◽  
Jen Tien – Chien
Keyword(s):  
Mechanical Properties ◽  
Matrix Composite ◽  
Palm Kernel ◽  
Stir Casting ◽  
Optical Microscope ◽  
Scanning Electron Micrographs ◽  
Aluminium Matrix Composite ◽  
Palm Kernel Shell ◽  
Powder Particles ◽  
Scanning Electron

<p class="AMSmaintext">An investigation into the effect of preheating the powder particles versus not preheating before mixing it with an aluminium slurry was carried out. This was seen as way of overcoming the challenge of wettability which often occurs when powder particles are added to a melted metal for the purpose of developing a metal matrix composite. In this study, non – preheated, 2 w.% preheated and 4 w.% preheated palm kernel shell ash powder was used to develop an aluminium matrix composite (AMC) via stir casting method. Mechanical properties revealed that AMC with 4 w.% pks ash inclusion has the highest Vickers Hardness value. Meanwhile, optical micrographs and scanning electron micrograph show that the pks ash both non – preheated and preheated are homogenously distributed into the matrix. This is further confirmed by the energy dispersive spectroscopy (EDS) mapping of the various samples. Although pks ash particles are only visible on the optical microscope micrographs, the elemental analysis of the various samples through EDS show a strong presence of carbon at various degree proving the presence of pks ash in the composite. Overall, preheating does not significantly affect the surface morphology of the AMCs based on the derived optical and scanning electron micrographs and AMC with higher content of pks ash particles seems to have better mechanical properties</p>

Effect of Pouring Temperature on Mechanical Properties and Microstructures of Aluminium Matrix Composite Strengthened by CNT with Stir Casting Method

2020 ◽  
Vol 988 ◽  
pp. 30-35
Author(s):  
Muhammad Syahid ◽  
Lukmanul H. Arma ◽  
Hairul Arsyad ◽  
Zulfikar A.R. Suwardi
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Matrix Composite ◽  
Hardness Test ◽  
Stir Casting ◽  
Mechanical Tests ◽  
Aluminium Matrix ◽  
Casting Method ◽  
Pouring Temperature ◽  
Aluminium Matrix Composite

Aluminium matrix composite reinforced Carbon nanoTubes are widely developed because it can increase mechanical strength without reducing its ductility. One of the AMC / CNT manufacturing processes is through the stir casting method. The challenge of the Al / CNT manufacturing process is the occurrence of agglomeration and CNT not homogeneous so that the right casting parameters are needed to obtain optimal results. The purpose of this study was to analyse the effect of pouring temperature on the mechanical strength and microstructure of AA6061 by adding Carbon Nanotube (CNT) through the stir casting method. The CNT is added by 0.1% wt and pouring temperature at 700 °C, 730 °C and 760 °C. Mechanical tests carried out were tensile test, hardness test, and impact test. The highest value of hardness and tensile strength was obtained at the pouring temperature of 700 °C are78 HV and 80.97 MPa. Lower pouring temperature causes smaller grain size so that it has higher strength. The distribution of hardness values ​​at the top, middle and bottom of the specimen is not evenly distributed, but does not differ greatly for all pouring temperatures. The highest value of impact strength is obtained at the pouring temperature of 760 °C which is 0.128 J/mm2. Microstructure was shown the addition of CNTs caused the size of primary silicon and aluminium grains to be small which would increase the mechanical properties.

scholarly journals Hot compression behaviour and microstructural evolution in aluminium based composites: an assessment of the role of reinforcements and deformation parameters

2021 ◽  
Vol 8 ◽  
pp. 6
Author(s):  
Saheed Adeoye Babalola ◽  
Kenneth Kanayo Alaneme ◽  
Samuel Ranti Oke ◽  
Lesley Heath Chown ◽  
Nthabiseng Beauty Maledi ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Matrix Composite ◽  
Stir Casting ◽  
Hot Compression ◽  
Compression Testing ◽  
Aluminium Matrix ◽  
Aluminium Matrix Composite ◽  
Casting Technique ◽  
Deformation Parameters ◽  
Dynamic Recrystallisation

The response of two different types of aluminium matrix composites (AMCs) reinforced with silicon carbide ceramic particulates or nickel metallic particulates to hot compression testing parameters was evaluated. The composites were produced via two-step stir-casting technique. Axisymmetric compression testing was performed on the samples at different deformation temperatures of 220 and 370 °Ϲ, 0.5 and 5 s−1 strain rates and total strains of 0.6 and 1.2. The initial and post-deformed microstructures were studied using optical and scanning electron microscopy. The results show that flow stress was significantly influenced by imposed deformation parameters and the type of reinforcements used in the AMCs. Nickel particulate reinforced aluminium matrix composite (AMC) showed superior resistance to deformation in comparison with silicon carbide reinforced AMC under the different testing conditions. In both AMCs, work hardening, dynamic recovery and dynamic recrystallisation influenced their response to imposed parameters. The signature of dynamic recrystallisation was very apparent in aluminium matrix composite reinforced with nickel particulates.

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