S/N Ratio Analysis of Tribological Behavior of SiCp Reinforced Al2124 Based Metal Matrix Composite

2013 ◽  
Vol 685 ◽  
pp. 24-29
Author(s):  
Y. Şahin ◽  
K. Emre Öksüz
Keyword(s):  
Powder Metallurgy ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Tribological Behavior ◽  
Matrix Alloy ◽  
Design Parameters ◽  
Ratio Analysis ◽  
The Matrix ◽  
Abrasive Size

Al2124-20wt.% SiCp composites were prepared by powder metallurgy (PM) method and investigated the tribological behavior of MMCs. S/N ratio analysis and analysis of variance (ANOVA) were employed to investigate which design parameters significantly affected the wear of the composites. The hardness of the matrix alloy increased from 44.2 HRB up to 87 HRB when reinforced with SiC particles. The ANOVA results showed that the hardness exerted the greatest effect on the wear, followed by the abrasive size.

A study on the microstructure, hardness, and tribological behavior of aluminum-based metal–matrix composite fabricated through recursive friction stir processing

2020 ◽  
pp. 146442072097668
Author(s):  
G Girish ◽  
V Anandakrishnan
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Friction Stir Processing ◽  
Metal Matrix ◽  
Applied Load ◽  
Tribological Behavior ◽  
Testing Conditions ◽  
Friction Stir ◽  
The Matrix ◽  
Microstructure Examination

In this work, an Al–Zn–Mg–Cu/TiC metal–matrix composite was fabricated through recursive friction stir processing, and its microstructure, hardness, and tribological properties were investigated. Microstructure examination revealed a homogeneous dispersion of TiC particles in the matrix after six recursive passes. The grains were significantly refined and microhardness of the composite improved due to the presence of TiC particles. Friction coefficient and wear rate of the composite went up with an increase in the applied load and dropped significantly at higher sliding velocities. The morphology of the wear specimens experimented under different testing conditions was analyzed and the corresponding wear mechanisms discussed.

Synthesis and mechanical behaviour of green metal matrix composites using waste eggshells as reinforcement material

2016 ◽  
Vol 5 (3) ◽  
Author(s):  
Shashi Prakash Dwivedi ◽  
Satpal Sharma ◽  
Raghvendra Kumar Mishra
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Testing Machine ◽  
Matrix Alloy ◽  
Stir Casting ◽  
Matrix Composites ◽  
Casting Technique ◽  
The Matrix ◽  
Chicken Eggshell

AbstractChicken eggshell (ES) is an aviculture by-product that has been listed worldwide as one of the worst environmental problems. The effective utilisation of ES biowaste is strongly encouraged in our society due to environmental and economic reasons. The aluminium alloy (AA) 2014/5 wt% carbonised ES metal matrix composite used in this study was fabricated by electromagnetic stir casting technique at parameters of 12 A (current), 180 s (time) and 700°C (matrix pouring temperature), respectively, and immediately extruded on universal testing machine at 60 MPa using cylindrical H13 tool steel die coated with graphite to avoid upper flow of ES particles and to improve wettability of carbonised ES with AA2014 alloy. Microstructures of composites show uniform distribution of carbonised ES particles. Density and overall cost of the metal matrix composite decreases 3.57% and 5%, respectively, when carbonised ES particulate is added 5% by weight. Tensile strength, hardness, toughness and fatigue strength of AA2014/5 wt% carbonized eggshell composite were also measured. Results show an improvement in these mechanical properties with addition of ES in the matrix alloy.

Manufacturing of Al-Li-Si3N4 metal matrix composite for weight reduction

2021 ◽  
Vol 63 (2) ◽  
pp. 169-175
Author(s):  
Raju Kandasamy ◽  
Balakrishnan Marimuthu
Keyword(s):  
Silicon Nitride ◽  
Impact Strength ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
High Strength ◽  
Matrix Alloy ◽  
Strength Properties ◽  
Uniform Dispersion ◽  
The Matrix

Abstract The present analysis was aimed to identify the properties of Al 2024 composite reinforced with lithium and silicon nitride to make it applicable for automobiles, sports and aerospace applications. An effort was made to reduce the density and increase the hardness and impact properties of aluminum 2024 matrix with individual and multiple reinforcements using the double casting method under non-reactive environment. Aluminum alloy matrices with lithium, silicon nitride and the combination of both were fabricated. The microstructure, density, hardness and impact strength properties of the fabricated aluminum metal matrices were analyzed. The microstructure study reveals the uniform dispersion of reinforcements in the matrix alloy. From the results, it is understood that the hardness and impact toughness increase with the addition of silicon nitride. Density is reduced with the addition of lithium as reinforcement. When both reinforcements were added in the matrix, it was observed that there was an increase in hardness and impact strength of the composites with decrease in density of the metal matrix composite making it suitable for light weight and high strength applications.

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.

Mechanical properties of melt infiltration and powder metallurgy fabricated aluminum metal matrix composite

2021 ◽  
pp. 095440542110159
Author(s):  
Mahmoud Awad ◽  
Noha M Hassan ◽  
Sathish Kannan
Keyword(s):  
Powder Metallurgy ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Composite Foam ◽  
Space Holder ◽  
Aluminum Metal Matrix Composite ◽  
Melt Infiltration ◽  
Innovative Material ◽  
And Coping

Metal foams have drawn an increasing interest especially in applications where weight and energy absorption are critical. Despite the extensive studies available on their characterization and enhanced fabrication techniques, limited work was found on the possibility of producing a porous composite foam. The objective of this article is to investigate two new synthesis techniques for manufacturing metal matrix composite foam that is, powder metallurgy and melt infiltration. Both techniques are studied using Sodium Chloride (NaCl) as a space holder in an aluminum-based metal matrix and graphene nanoparticles as reinforcements. The effect of the quantity added of both the space holder and graphene is studied using designed experiments. Although powder metallurgy provided lower baseline hardness, experimentation results suggest the superiority of the process over melt infiltration in terms of porosity and hardness. Results suggest that baseline aluminum hardness can be increased by up to 21.5% using powder metallurgy and 15% using melt infiltration. In terms of porosity, powder metallurgy porosity increased baseline more than ten folds while melt infiltration only doubled the baseline porosity. Moreover, it is easier to control the macroscopic shape, density, and distribution of the pores using powder metallurgy. It is also easier to disperse the reinforcement homogenously. Results will support several industries such as military, automotive, medical, and aerospace in developing this innovative material with superior properties and coping with their need for advanced applications.

Research of the process of synthesis and properties of the obtained metal-matrix composite powders of the Ti/tib2 system

2021 ◽  
pp. 66-73
Author(s):  
M. E. Goshkoderya ◽  
T. I. Bobkova ◽  
M. V. Staritsyn
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Composite Powders ◽  
Optimal Ratio ◽  
The Matrix ◽  
Series Of Experiments ◽  
Sprayed Coatings

The paper proposes a method for preparing composite powders of the Ti/TiB2 system, studies the properties of the obtained composite powders, and also shows a series of experiments on its microplasma spraying. The properties of the sprayed coatings were investigated. On its basis the optimal ratio of the matrix and reinforcing components was established in order to increase significantly the hardness of the sprayed coatings.

scholarly journals Heat treatment effect on metal matrix composite with brass matrix and fly ash

2018 ◽  
Vol 204 ◽  
pp. 05020
Author(s):  
Aminnudin Aminnudin ◽  
Moch. Agus Choiron
Keyword(s):  
Heat Treatment ◽  
Fly Ash ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Coal Combustion ◽  
Metal Matrix ◽  
Treatment Process ◽  
Impact Test ◽  
Test Results ◽  
The Matrix

Metal matrix composite (MMC) is a combination of two or more materials using metal as a matrix. In this paper we used brass as the matrix and fly ash as for the particle. The fly ash used is fly ash which is produced from coal combustion in the Paiton power plant. Fly ash composition in the MMC are 5% and 10%. The MMC was produced with gas furnace. Heat tratment to MMC was done at 350 and 400 °C.Hard testing process, tensile test and impack test are carried out at MMC before heat treatment and after heat treatment. From the test results showed an increase in hardness, tensile strength and impact test showed the heat treatment process at a temperature of 350 °C. Heat treatment at a temperature of 400 °C does not improve the mechanical properties of MMC

scholarly journals Processing Map for Hot Working of Powder Metallurgy 2124 AL - 20 VOL% SiCP Metal Matrix Composite

2000 ◽  
Vol 9 (2) ◽  
pp. 096369350000900
Author(s):  
S.V.S. Narayana Murty ◽  
B. Nageswara Rao ◽  
B.P. Kashyap
Keyword(s):  
Powder Metallurgy ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Processing Map ◽  
Hot Working ◽  
Flow Instabilities ◽  
Instability Criterion ◽  
Processing Maps ◽  
Instability Condition

A simple instability condition based on the Ziegler's instability criterion is found to be more appropriate in delineating the regimes of flow instabilities in the processing maps of 2124 Al-20 Vol% SiCp metal matrix composite. Applicability of the criterion is demonstrated using the reported microstructural observations in open literature.

Investigation of Tensile Property of Aluminium SiC Metal Matrix Composite

2015 ◽  
Vol 766-767 ◽  
pp. 252-256 ◽  
Author(s):  
A. Siddique Ahmed Ghias ◽  
B. Vijaya Ramnath
Keyword(s):  
Composite Material ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Matrix Material ◽  
Chemical Properties ◽  
High Strength ◽  
Stir Casting ◽  
The Matrix ◽  
Hybrid Metal Matrix Composite

The composite material is a combination of two or more materials with different physical and chemical properties. The composite has superior characteristics than those individual components. A hybrid composite is the one which contains at least three materials. When the matrix material is a metal, the composite is termed as metal matrix composites (MMC). The MMC is a composite material with two constituent parts, one being a metal. The other material may be another metal, ceramic or fiber. Among all the MMC’s, Aluminium is the most widely used matrix material due to its light weight, high strength and hardness. This paper deals with the fabrication and mechanical investigation of hybrid metal matrix composite Al - SiC. The fabrication is done by stir casting by adding the required quantities of additives into the stirred molten Aluminium. The results show significant effect of mechanical properties such as tensile strength, yield stress and flexural strength. The internal structure of the composite is observed using Scanning electron microscope (SEM) and found that are formation of pores in them.

Mechanical and Bond Behavior of an Advanced Quranic Metal-Matrix Composite Material (QMMC)

2019 ◽  
Author(s):  
S. Mousa ◽  
M. Atta ◽  
A. A. Abd-Elhady ◽  
Ahmed Abu-Sinna ◽  
O. Bafakeeh ◽  
...  
Keyword(s):  
Composite Material ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Molten Copper ◽  
The Finite Element Method ◽  
Holy Quran ◽  
The Matrix ◽  
The Holy Quran ◽  
Metal Matrix Composite Material

Abstract The holy Quran, from more than 1400 years, told us that Zul-karnain had made a metallic composite material between iron and copper [1,2] as follows: “Bring me sheets of iron” — until, when he had leveled [them] between the two mountain walls, he said, “Blow [with bellows],” until when he had made it [like] fire, he said, “Bring me, that I may pour over it molten copper * So Gog and Magog were unable to pass over it, nor were they able [to effect] in it any penetration.”: Translation of verses 96 and 97 in Surah Al-Kahf (18), The holy Quran [3]. According to the above story, the matrix is copper, while reinforcement is iron of this metal matrix composite. The present paper is going to investigate the Metal-Matrix Composite Material (MMC) suggested by Zul-karnain at different manufacturing conditions by using the experimental method. The effect of reinforcement temperature on the integrity of such MMC is one of the main goals of the present work. The mechanical behavior of the present QMMC is also examined in the present research as preliminary study. Furthermore, the finite element method is used to predicate the debonding force of MMC based on Virtual-Crack-Closing-Technique (VCCT).

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