scholarly journals Design and Simulation on Compressor Metal Matrix Composite by Investment Casting

2011 ◽  
Vol 264-265 ◽  
pp. 403-408 ◽  
Author(s):  
Taufik ◽  
Shamsuddin Sulaiman ◽  
T.A. Abdullah ◽  
Sivarao
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Investment Casting ◽  
Metal Matrix ◽  
Three Dimensional ◽  
Mechanical Analysis ◽  
Matrix Composites ◽  
Wax Pattern ◽  
Compressor Impeller ◽  
Three Dimensional Finite Element

Compressor is a part of turbocharger approaches that utilize the exhaust gas of an automobile to drive the compression device. The purpose of turbocharging is to increase the intake pressure and the amount of air into the combustion chamber to improve the efficiency of the engine. Compressor impeller determines the service life of the turbocharger. This paper proposes the new methodology of producing the compressor impeller using Metal Matrix Composite (MMC) material by investment casting. In general, this study presents the tasks pertaining to metal matrix composites and their interactions in designing of compressor impeller. This study presents the use of genetic algorithm (GA) and computer programs for designing a new compressor and determined the wax pattern dimensions based on three-dimensional finite-element simulations as a preliminary study by using investment casting method. The model of thermal and mechanical analysis was developed by ANSYS. As the results, the simulation model was generated and it could be used for improving the design of turbine-compressor assembly through the bottom geometry changes of the compressor.

scholarly journals Design and Simulation on Cast Metal Matrix Composite by Investment Casting

2011 ◽  
Vol 264-265 ◽  
pp. 323-328 ◽  
Author(s):  
Taufik ◽  
Shamsuddin Sulaiman ◽  
T.A. Abdullah ◽  
Sivarao
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Investment Casting ◽  
Metal Matrix ◽  
Volume Fraction ◽  
Matrix Material ◽  
Three Dimensional ◽  
Injection Pressure ◽  
Wax Pattern ◽  
Particle Addition

Metal Matrix Composite (MMC) is produced normally by melting the matrix material in a vessel and the molten metal is stirred systematically to form a vortex, and then the reinforcement particles are introduced through the side of vortex formed. However, this approach has disadvantages, mainly arising from the particle addition and the stirring method. There is certainly local solidification of the melt induced by the particles during particle addition. This condition increases the viscosity of the slurry and appears as air pockets between the particles. Moreover, the rate of particle addition needs to be slowed down particularly when the volume fraction of the particles to used increases. This study proposes the new methodology of producing cast MMC by investment casting. Deformations of the die-wax and shell alloy systems are considered in a coupled manner, but the coupled deformation of the wax-shell system is not included. Therefore, this study presents the tasks pertaining to metal matrix composites and their interactions. As a result, the work on wax and wax-die interactions is discussed. This study presents the use of computer programs for determining the wax pattern dimensions based on three-dimensional finite-element simulations. The model for coupled thermal and mechanical analysis is developed by ProCAST. The wax model is described. The following factors are considered in the analysis: (1) the restraint due to geometrical features in the metal die; and (2) process parameters such as dwell time, die/platen temperature, injection pressure, and injection temperature.

Integrating Simulation with Experiment for Recycled Metal Matrix Composite (MMC-AlR) Developed through Hot Press Forging

2018 ◽  
Vol 775 ◽  
pp. 493-498 ◽  
Author(s):  
Azlan Ahmad ◽  
Mohd Amri Lajis ◽  
Shazarel Shamsudin ◽  
Nur Kamilah Yusuf
Keyword(s):  
Finite Element ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Three Dimensional ◽  
Hot Press ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Deform 3D

This study proposes of harmonizing the original approach of aluminium alloy recycling through hot press forging. By eradicating the melting phase, most of the waste generation can be significantly reduced. To cope with the technology revolution, the finite element is utilised to predict the material behaviour without practically executing the trial. By employing three-dimensional finite element analysis through DEFORM 3D, the evaluations were demonstrated by simulating the isothermal forging process. The flow stress of the material was modified to adequate with the aluminium-based metal matrix composite used in the actual experiment. To that extent, this study found out that the strain of the workpiece had gradually increased on each step. A reduction of ~10% of the flesh observed in the simulation is roughly the same as existed on the experiment workpiece. Above all, the simulation conducted abides by the standard and follows the actual practice that has been done previously. Through the finite element utilization, this study discussed the performance of the recycled based composite. The result presented here may facilitate improvement in the recycling issue and also conserved the environment for the better future.

TEM examination of 2014-SiC metal matrix composite

1988 ◽  
Vol 46 ◽  
pp. 726-727
Author(s):  
M. G. Burke ◽  
M. N. Gungor ◽  
P. K. Liaw
Keyword(s):  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Tensile Deformation ◽  
Microstructural Characterization ◽  
Thin Foil ◽  
Matrix Alloy ◽  
Matrix Composites ◽  
Ion Milling

Aluminum-based metal matrix composites offer unique combinations of high specific strength and high stiffness. The improvement in strength and stiffness is related to the particulate reinforcement and the particular matrix alloy chosen. In this way, the metal matrix composite can be tailored for specific materials applications. The microstructural characterization of metal matrix composites is thus important in the development of these materials. In this study, the structure of a p/m 2014-SiC particulate metal matrix composite has been examined after extrusion and tensile deformation.Thin-foil specimens of the 2014-20 vol.% SiCp metal matrix composite were prepared by dimpling to approximately 35 μm prior to ion-milling using a Gatan Dual Ion Mill equipped with a cold stage. These samples were then examined in a Philips 400T TEM/STEM operated at 120 kV. Two material conditions were evaluated: after extrusion (80:1); and after tensile deformation at 250°C.

Dynamic mechanical analysis of prestrained Al2O3/Al metal-matrix composite

1995 ◽  
Vol 30 (12) ◽  
pp. 3037-3044 ◽  
Author(s):  
S. Elomari ◽  
R. Boukhili ◽  
M. D. Skibo ◽  
J. Masounave
Keyword(s):  
Dynamic Mechanical Analysis ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Mechanical Analysis ◽  
Dynamic Mechanical

scholarly journals Friction Stir Processing of Hybrid Al-Si Alloy Metal Matrix Composite

2021 ◽  
Author(s):  
Vipin Sharma ◽  
Yogesh Dewang ◽  
Pardeep Kumar Nagpal ◽  
Suresh Kumar
Keyword(s):  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Matrix Composite ◽  
Friction Stir Processing ◽  
Metal Matrix ◽  
Full Potential ◽  
Matrix Composites ◽  
Friction Stir ◽  
Zircon Sand ◽  
Sand Particles

Abstract Metal matrix composites are an important class of material that is developing rapidly to fulfil the diversified engineering requirements. The metal matrix composites are attractive owing to superior properties as compared to monolithic material. Their properties are dependent on various factors and fabrication techniques. The metal matrix composites are associated with several issues which hinder their full potential. In the present study friction stir processing is applied on the metal matrix composite as a post-processing operation. The friction stir processing offers many advantages owing to the solid-state nature of the processing. Stir cast metal matrix composites are prepared by using zircon sand particles of 50 µm in the matrix of LM13 aluminium alloy. The friction stir processing is applied on the metal matrix plates at a constant rotational speed and traverse speed of 1400 rpm and 63 mm/min, respectively. Multiple passes of friction stir processing are applied to elucidate the effect of the number of passes on microstructural modification. Microstructural examination showed a significant improvement in eutectic silicon morphology and distribution of zircon sand particles. A more than 5 times reduction as compared to the initial size was observed in the zircon sand particles after four passes of friction stir processing. The processed metal matrix composite also exhibits improvement in tensile strength and hardness.

scholarly journals Contemporary Progresses in Ultrasonic Welding of Aluminum Metal Matrix Composites

2021 ◽  
Vol 8 ◽  
Author(s):  
Senthil Kumaran Selvaraj ◽  
Kathiravan Srinivasan ◽  
Utkarsh Chadha ◽  
Rajat Mishra ◽  
Kurane Arpit ◽  
...  
Keyword(s):  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Welding Process ◽  
Ultrasonic Welding ◽  
Matrix Composites ◽  
Aluminum Metal ◽  
Aluminum Metal Matrix Composites ◽  
Aluminium Metal

Graphical AbstractA Brief Review of the Ultrasonic welding process flow and sequence for joining aluminium metal matrix composite.

scholarly journals Effects of Waste Eggshells addition on Microstructures, Mechanical and Tribological Properties of Green Metal Matrix Composite

2019 ◽  
Vol 26 (1) ◽  
pp. 423-434
Author(s):  
Mohammed T. Hayajneh ◽  
Mohammed A. Almomani ◽  
Mu’ayyad M. Al-Shrida
Keyword(s):  
Compressive Strength ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Tribological Properties ◽  
Metal Matrix ◽  
Wear Test ◽  
Matrix Composites ◽  
Mechanical And Tribological Properties ◽  
Negative Results ◽  
Chicken Eggshell

AbstractChicken eggshell (Es) waste is an industrial byproduct, and its disposal constitutes a severe environmental risk. Eggshell is a new engineering reinforcement retaining excellent properties such as low density, renewable, eco-friendly, and high thermal stability. The current research aims to study the effects of eggshell particles addition on microstructures, mechanical and tribological properties of aluminium/eggshell green metal matrix composites (MMCs). In the present work Al–Es metal matrix composite is produced by powder metallurgy processes. SEM with EDX and XRD were used to examine the microstructures and the compounds that arise during the sintering process of the produced composites. Six tests were conducted on the produced samples including; dry wear test, micro Vickers hardness, and ultimate compressive strength. The results showed that the addition of 3 wt. % of eggshell improved wear resistance (65%), compressive strength (40%) and hardness (15%). At 6 and 9 wt. % of eggshell, negative results appeared.

Experimental Study on Dry Sliding Wear Behaviour of Al-B4C-Gr Metal Matrix Composite at Different Temperatures

2019 ◽  
Vol 895 ◽  
pp. 96-101 ◽  
Author(s):  
B.N. Sharath ◽  
K.S. Madhu ◽  
C.V. Venkatesh
Keyword(s):  
Wear Resistance ◽  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Matrix Composites ◽  
Influence Of Process Parameters ◽  
Hybrid Metal Matrix Composites

In the present scenario aluminium is an useful metal due its admirable properties such as light weight, low cost and excellent thermal conductivity.In order to take advantages of these properties aluminium is being used to make the metal matrix composites for tribological application, In this present investigation effort has been made to assess the wear properties of Al–B4C–Gr metal matrix composite at various temperatures such as 323° K, 373° K and 423° K. Al–B4C–Gr Hybrid metal matrix composites were fabricated by stir casting technique. The influence of parameters like load, speed, distance and temperature on the wear rate was investigated. A plan of experiments, based on Taguchi model with L27 orthogonal array and analysis of variance was employed to investigate the influence of process parameters on the wear behaviour of these hybrid metal matrix composites. The wear resistance increased with increasing temperature, but wear resistance decreased at higher loads. It was observed that the abrasive wear is dominates while sliding as observed by SEM analysis of worn out specimens.

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