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.

scholarly journals Study on Properties of Multi Walled Carbon Nanotube Reinforced Aluminum Matrix Composite through Casting Technique

2021 ◽  
Vol 18 (1) ◽  
pp. 97-101
Author(s):  
Shuib Pasha S A ◽  
Nayeem Ahmed M ◽  
Tilak S R ◽  
Anil Kumar B N
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Matrix Composite ◽  
Research Work ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Optical Microscope ◽  
Aluminum Matrix Composite ◽  
Casting Technique ◽  
Multi Walled Carbon Nanotubes

Composite materials are defined as material systems consisting of mixture of or combination of two or more micro constituents insoluble in each other and differing in form and or material composition. In this study Metal Matrix Composite (MMCs) has been produced using stir casting method for performing the mechanical properties. Most of the engineering industries want light and better mechanical properties of components; this can be achieved by MMCs of Aluminium because of its excellent performance. In this research work we fabricate the Aluminium by liquid route. Here Al 7075 is used as a base metal and Multi Walled Carbon Nanotubes (MWCNT) used as sub metal with various percentages. Experiments were conducted to analyze microstructure, hardness & tensile strength. By using optical microscope and Scanning Electron Microscope (SEM) we analyze the sample specimens are well dispersion in MWCNT with AA 7075. Hardness and tensile strength increases with increasing of wt. %. Hardness of material increases with increase in percentages of MWCNT, whereas tensile strength of the material increases with increase in percentages of MWCNT and Elongation reduces

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.

scholarly journals HEAT TREATMENT OF ALUMINIUM MATRIX COMPOSITE (AMC) REINFORCEMENT ORGANOCLAY FOR AUTOMOTIVE APPLICATION

2017 ◽  
Vol 5 (2) ◽  
Author(s):  
Yulius Eka Agung
Keyword(s):  
Heat Treatment ◽  
Artificial Aging ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Automotive Application ◽  
Aluminum Matrix Composites ◽  
Metal Composite ◽  
Matrix Composites ◽  
Aluminium Matrix Composite ◽  
Xrd Pattern

Aluminum Matrix Composites (AMC) reinforced montmorillonite (MMT) was performed using cationic surfactant , Artificial Aging and stir casting method. The content of MMT as a filler is 3%wt. Characterization were performed using Xray Difractometer, ultrasonic testing, SEM, and Hardness Vickers. The results show increase in crystallographic parameter, decrease in density, shiffting in XRD pattern and increase in hardness.Keywords: metal, composite, matrix, aluminum, AMC, MMC, organoclay, heat treatment MMT, artificial aging,stir casting, automotive

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>

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.

scholarly journals Effect of Reinforcement Material on Properties of Manufactured Aluminum Matrix Composite Using Stir Casting Route

2020 ◽  
Vol 27 ◽  
pp. 62-68
Author(s):  
Hammar Ilham Akbar ◽  
Eko Surojo ◽  
Dody Ariawan ◽  
Galang Ariyanto Putra ◽  
Reyhan Tri Wibowo
Keyword(s):  
Matrix Composite ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Aluminum Matrix Composite ◽  
Reinforcement Material

The role of ceramic particle loading and the influence of hot extrusion on the tribological behaviour of aluminium alloy-SiCp composites

2020 ◽  
pp. 002199832095740
Author(s):  
S Dhanalakshmi ◽  
K ShanmugaSundaram ◽  
TR Tamilarasan ◽  
R Rajendran
Keyword(s):  
Wear Resistance ◽  
Base Alloy ◽  
Wear Test ◽  
Hot Extrusion ◽  
Stir Casting ◽  
Ceramic Particle ◽  
Constant Load ◽  
Tribological Behaviour ◽  
Wear Performance ◽  
Electron Microscopes

Aluminium matrix composites (AMC) are gaining wide popularity in various sectors due to their excellent properties which are synergic. Apart from strength, wear resistance of a material is also an essential criterion for the number of applications. Extensive studies are being carried out on the secondary processing of these materials to enhance the suitability of the AMC for engineering applications. In this study, initially, Al 2014 base alloy and their composites with 5, 10, and 15 wt.% SiCp fabricated by stir casting route were subjected to wear test. Based on the encouraging wear performance, the Al-10 wt.% SiC composite was further subjected to extrusion. Pin-on-disc sliding wear tests on the as-cast & extruded base alloy and the composite samples were carried out at a constant load of 20 N for a total sliding distance of 1000 m with a velocity of 2 m/s. Microhardness and porosity measurements were carried out besides the study of wear performance, such as coefficient of friction and wear by weight loss. The worn surfaces were analyzed both by optical and scanning electron microscopes. The effect of particle addition, extrusion, porosity, and microhardness on the wear performance of the samples was discussed. Among the samples studied, the Al-10 wt.% SiC composite extruded at a ratio of 8:1 is found to have the highest wear resistance.

Sign in / Sign up

Export Citation Format

Share Document