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

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.

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

Manufacturing Review ◽

10.1051/mfreview/2021004 ◽

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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Effects of SiC particulate-reinforced on the fluidity and mechanical properties of Aluminium Matrix Composite through stir casting route

Journal of Physics Conference Series ◽

10.1088/1742-6596/1198/3/032013 ◽

2019 ◽

Vol 1198 (3) ◽

pp. 032013

Author(s):

Gunawan ◽

Amir Arifin ◽

Yani Irsyadi ◽

Bembi Aris Munandar

Keyword(s):

Mechanical Properties ◽

Matrix Composite ◽

Stir Casting ◽

Aluminium Matrix ◽

Aluminium Matrix Composite ◽

Particulate Reinforced

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Effect of heat treatment on microstructure and mechanical aluminium matrix composite (AMC) by stir casting method for automotive application

10.1063/5.0016355 ◽

2020 ◽

Author(s):

Indah Uswatun Hasanah ◽

Dedi Priadi ◽

Suryana ◽

Muhammad Kaffi

Keyword(s):

Heat Treatment ◽

Matrix Composite ◽

Stir Casting ◽

Automotive Application ◽

Aluminium Matrix ◽

Casting Method ◽

Aluminium Matrix Composite

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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

Mekanika: Majalah Ilmiah Mekanika ◽

10.20961/mekanika.v16i1.35051 ◽

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.

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Study on mechanical properties of graphite particulates reinforced aluminium matrix composite fabricated by stir casting technique

Materials Today Proceedings ◽

10.1016/j.matpr.2018.01.090 ◽

2018 ◽

Vol 5 (1) ◽

pp. 2945-2950 ◽

Cited By ~ 16

Author(s):

V. Mohanavel ◽

K. Rajan ◽

S. Suresh Kumar ◽

G. Vijayan ◽

M.S. Vijayanand

Keyword(s):

Mechanical Properties ◽

Matrix Composite ◽

Stir Casting ◽

Aluminium Matrix ◽

Aluminium Matrix Composite ◽

Casting Technique

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Pengaruh Perlakuan Preheat Partikel Al2o3 Pada Proses Stir Casting terhadap Sifat Fisik dan Mekanik Komposit Al6061- Al2O3

Mekanika: Majalah Ilmiah Mekanika ◽

10.20961/mekanika.v19i2.43646 ◽

2020 ◽

Vol 19 (2) ◽

pp. 83

Author(s):

Eko Surojo ◽

Henri Fatih Wibowo ◽

Teguh Triyono ◽

Agus Suprihanto

Keyword(s):

Matrix Composite ◽

Stir Casting ◽

Aluminium Matrix ◽

Aluminium Matrix Composite

<div class="WordSection1"><div class="WordSection1">Aluminium komposit secara luas digunakan untuk aplikasi kinerja tinggi seperti di otomotif, militer dan kedirgantaraan. Stir casting merupakan salah satu metode yang digunakan untuk memproduksi AMC (Aluminium Matrix Composite). Parameter dalam metode stir casting yang harus dipertimbangkan ketika proses manufaktur diantaranya adalah temperatur pengadukan, kecepatan pengadukan dan perlakuan pada partikel penguat karena akan berpengaruh terhadap sifat fisik dan mekanik komposit. Penelitian ini dilakukan untuk mengetahui pengaruh pemanasan awal serbuk Al2O3 terhadap porositas, kekerasan, laju keausan spesifik dan koefisien gesekan komposit Al6061-Al2O3. Proses manufaktur komposit dilakukan pada temperatur pengadukan 720-740°C, kecepatan pengadukan 600 rpm dan variasi perlakuan preheat pada partikel penguat Al2O3 dengan suhu ruang, 150℃ dan 300℃. Hasil penelitian menunjukkan bahwa perlakuan preheat pada partikel penguat Al2O3 berpengaruh terhadap porositas, kekerasan, laju keausan spesifik dan koefisien gesek komposit. Perlakuan preheat pada partikel penguat Al2O3 mampu menurunkan porositas, meningkatkan kekerasan dan koefisien gesek, serta menurunkan laju keausan spesifik komposit. Pemberian perlakuan preheat yang optimal didapat pada suhu 300℃.</div></div>

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

Materials Science Forum ◽

10.4028/www.scientific.net/msf.988.30 ◽

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.

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