The effect of matrix composition on the mechanical properties of squeeze-cast aluminium alloy-Saffil metal matrix composites

1991 ◽  
Vol 135 ◽  
pp. 237-242 ◽  
Author(s):  
N.J. Musson ◽  
T.M. Yue
2012 ◽  
Vol 622-623 ◽  
pp. 1335-1339 ◽  
Author(s):  
Azrol Jailani ◽  
Siti Mariam Tajuddin

Discontinuously reinforced cast metal-matrix composites are increasingly attracting the attention of aerospace, automotive and consumer goods industries. In this study, SiC particle reinforced aluminium alloy is selected to produce metal matrix composites (MMC) using different of parameters blade angle and stirring speed and composition of SiC reinforcement. Mechanical test, metallographic analysis and fracture analysis will be conducted to investigate mechanical properties of material and to observe particle distribution of SiC reinforcement and fracture properties respectively with varies angles and stirring speed of impellers and different composition of SiC reinforcement. Metallographic analysis on composition records at low speed, there exist a particle collection and gas existence on the specimen. At blade angles of 300, increasing on stirring speed and composition of SiC reinforcement may result better of particle distribution. For mechanical test, different composition of SiC reinforcement, blade angle and stirring speed will be affecting a mechanical property of material. The result of the experiment showed at blade angle 300, stirring speed 100rpm and 10% composition of SiC reinforcement give better result of hardness, ultimate strength, energy absorption, microstructure and fracture of composite. For this study, it proved that at the lower blade angle and the increment on stirring speed and composition of SiC reinforcement give a better result on particle distribution of SiC reinforcement, fracture and mechanical properties for A1-MMC.


2014 ◽  
Vol 58 ◽  
pp. 332-338 ◽  
Author(s):  
B. Vijaya Ramnath ◽  
C. Elanchezhian ◽  
M. Jaivignesh ◽  
S. Rajesh ◽  
C. Parswajinan ◽  
...  

2017 ◽  
Vol 4 (4) ◽  
pp. 5452-5460 ◽  
Author(s):  
Utkarsh Pandey ◽  
Rajesh Purohit ◽  
Pankaj Agarwal ◽  
S.K. Dhakad ◽  
R.S. Rana

2015 ◽  
Vol 766-767 ◽  
pp. 246-251 ◽  
Author(s):  
P. Pugalethi ◽  
M. Jayaraman ◽  
A. Natarajan

Aluminium based Metal Matrix Composites (MMCs) with Aluminium matrix and non-metallic reinforcements are finding extensive applications in automotive, aerospace and defence fields because of their high strength-to-weight ratio, high stiffness, hardness, wear-resistance, high-temperature resistance, etc. Composite materials are frequently chosen for structural applications because they have desirable combinations of mechanical characteristics. Development of hybrid metal matrix composites has become an important area of research interest in Material Science. In this work, the Aluminium alloy is reinforced with 3,5,7,9 wt. % of Al2O3 and 2 wt. % of SiC to prepare the hybrid composite. The present study is aimed at evaluating the physical properties of aluminium 7075 in the presence of silicon carbide, aluminium oxide and its combinations. The compositions are added up to the ultimate level and stir casting method is used for the fabrication of aluminium metal matrix composites. The mechanical behaviours of metal matrix composites like tensile strength, and hardness test are investigated by conducting laboratory experiments. Mechanical properties like micro hardness and tensile strength of Al7075 alloy increase with the addition of SiC and Al2O3 reinforcements.


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