Investigative Analysis of the Tensile and Impact Strengths of Hybridized Aluminum Metal Matrix Composite Materials

New developments in material technology aids in the investigations, reinforcements of new materials which replaces existing materials for various applications. Among those, composite materials play an important role which is a combination of two or more materials with different physical and chemical properties. This research focused on developing an aluminium metal matrix composite (AMMC) material made by wrought aluminium alloy with various weight fractions of aluminium oxide to make five different forms of composites. In this research stir casting process was used. The reinforced composites were tested for their tensile and impact strength properties. The results show that composite with a higher percentage of aluminium oxide has high tensile and impact strength properties than other composites.

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Investigation of flexural and impact strength of carbon nanotube reinforced AA7075 metal matrix

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i2.11295 ◽

2018 ◽

Vol 7 (2) ◽

pp. 764

Author(s):

Pothamsetty Kasi V Rao ◽

B Raghu Kumar ◽

B Sudheer Kumar ◽

G Phanindra Swamy ◽

Y Ganga Raju ◽

...

Keyword(s):

Carbon Nanotubes ◽

Impact Strength ◽

Flexural Strength ◽

Metal Matrix Composite ◽

Matrix Composite ◽

Metal Matrix ◽

Casting Process ◽

Stir Casting ◽

Pure Metal ◽

Mechanical Tests

Metal matrix nano-composites are grabbing more attention by many researchers in the recent years as they exhibit outstanding properties when compared to pure metal alloys. In the present study Aluminium Alloy 7075 was selected as the matrix and carbon nanotubes was selected as reinforcing element to investigate the percentage enhancement of flexural strength and impact strength of metal matrix composite. Stir casting process was selected to fabricate the specimens. The multi walled carbon nanotubes with different weight percentages (0.5, 1.0, 2.0, 5.0 wt %) were selected to prepare the AA7075-CNT metal matrix composite. Microstructure and dispersion of CNT was examined using Scanning Electron Microscope (SEM) with EDX. The experimental results of mechanical tests showed that if the MWCNTs particle content increases considerably flexural strength and impact strength also increases about 125% and 90% respectively. Thus the AA7075-CNT metal matrix can be used in automobile and aerospace applications under high load conditions.

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

Materials Testing ◽

10.1515/mt-2020-0029 ◽

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.

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EXPERIMENTAL INVESTIGATION ON MECHANICAL BEHAVIOUR OF AZ91C METAL MATRIX COMPOSITE REINFORCED WITH B4C

Journal of University of Shanghai for Science and Technology ◽

10.51201/jusst/21/05178 ◽

2021 ◽

Vol 23 (05) ◽

pp. 611-617

Author(s):

Nagallapati Jaya Krishna ◽

◽

Dega Nagaraju ◽

Keyword(s):

Tensile Strength ◽

Compressive Strength ◽

Composite Materials ◽

Metal Matrix Composite ◽

Matrix Composite ◽

Metal Matrix ◽

Hardness Test ◽

Casting Process ◽

Matrix Alloy ◽

Specific Strength

Magnesium-based composite materials play an important role in aerospace and automobile industries because of their low density, stiffness & high speciﬁc strength. These hybrid composite materials were needed to increase the strength, surface finish, machinability, corrosion resistance, etc. To address such a problem this work has been focused on the preparation of magnesium-based metal matrix composite materials AZ91C reinforced with the B4C with two different proportions which are prepared by using the casting process. For the characterization of the prepared Mg-based MMCs, various tests like tensile test and hardness test have been performed on three model sample specimens of namely AZ91C(100%)+B4C(0%). AZ91C(98%)+B4C(2%) And AZ91C(96%)+B4C(4%). It was found that the compressive strength is and hardness is decreased due to the addition of the B4C to the matrix alloy AZ91C while tensile strength is increased. The tensile strength is increased by 15.58% with the addition of 4% B4C when compared with 2% of B4C and also hardness is increased by 31.49%. The compressive strength is decreased by 41.43% with the addition of 4% B4C when compared with 2% of B4C.

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Corrosion Behavior of AA2014/SiC Metal Matrix Composite Fabricated by Stir Casting Process

i-manager s Journal on Material Science ◽

10.26634/jms.4.3.8240 ◽

2016 ◽

Vol 4 (3) ◽

pp. 1

Author(s):

PRAKASH DWIVEDI SHASHI ◽

SHARMA ANAND ◽

PRATAP RAO SHASHANK ◽

BAHUGUNA SUMIT ◽

◽

...

Keyword(s):

Metal Matrix Composite ◽

Corrosion Behavior ◽

Matrix Composite ◽

Metal Matrix ◽

Casting Process ◽

Stir Casting

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Loss Factors Measured in Metal Matrix Composite Materials.

10.21236/ada143542 ◽

1984 ◽

Cited By ~ 3

Author(s):

N. S. Timmerman ◽

J. Doherty

Keyword(s):

Composite Materials ◽

Metal Matrix Composite ◽

Matrix Composite ◽

Metal Matrix ◽

Loss Factors

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Influence of Squeeze Casting Process Parameter on Al/SiCp Metal Matrix Composite

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/988/1/012056 ◽

2020 ◽

Vol 988 ◽

pp. 012056

Author(s):

P Gurusamy ◽

S Hari Krishna Raj

Keyword(s):

Metal Matrix Composite ◽

Matrix Composite ◽

Metal Matrix ◽

Squeeze Casting ◽

Casting Process ◽

Process Parameter ◽

Squeeze Casting Process

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High-Temperature Synthesis of Metal–Matrix Composites (Ni-Ti)-TiB2

Applied Sciences ◽

10.3390/app11052426 ◽

2021 ◽

Vol 11 (5) ◽

pp. 2426

Author(s):

Vladimir Promakhov ◽

Alexey Matveev ◽

Nikita Schulz ◽

Mikhail Grigoriev ◽

Andrey Olisov ◽

...

Keyword(s):

High Temperature ◽

Composite Materials ◽

Metal Matrix Composite ◽

Matrix Composite ◽

Metal Matrix ◽

Average Particle Size ◽

Synthesis Process ◽

Average Particle ◽

Temperature Synthesis ◽

High Temperature Synthesis

Currently, metal–matrix composite materials are some of the most promising types of materials, and they combine the advantages of a metal matrix and reinforcing particles/fibres. Within the framework of this article, the high-temperature synthesis of metal–matrix composite materials based on the (Ni-Ti)-TiB2 system was studied. The selected approaches make it possible to obtain composite materials of various compositions without contamination and with a high degree of energy efficiency during production processes. Combustion processes in the samples of a 63.5 wt.% NiB + 36.5 wt.% Ti mixture and the phase composition and structure of the synthesis products were researched. It has been established that the synthesis process in the samples proceeds via the spin combustion mechanism. It has been shown that self-propagating high-temperature synthesis (SHS) powder particles have a composite structure and consist of a Ni-Ti matrix and TiB2 reinforcement inclusions that are uniformly distributed inside it. The inclusion size lies in the range between 0.1 and 4 µm, and the average particle size is 0.57 µm. The obtained metal-matrix composite materials can be used in additive manufacturing technologies as ligatures for heat-resistant alloys, as well as for the synthesis of composites using traditional methods of powder metallurgy.

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