Low Cost Particulate Reinforced Aluminium Matrix Composites for Automotive Brake Drum

The tensile behaviour of nanometric SiC particulate (SiCp) reinforced aluminium matrix composites (AMCs) was examined at room temperature, 215°C and 350°C. These AMCs were produced via powder metallurgy (P/M) using Al 7075 powder reinforced with different volume fractions (1 vol.%, 3 vol.% and 5 vol.%) of nano-SiCp. The experimental results exhibit that at room temperature un-reinforced Al has both maximum strength and ductility whereas the 5 vol.% SiCp/Al composite has only maximum stiffness. Similar trends were obtained for tests performed at 215°C. However at 350°C, the 1 vol.% SiCp/Al composite has the highest stiffness. Optical microscopy and scanning electron microscopy were performed for microstructure study, examination of the SiCp distribution in the Al matrix and fractography.

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Influence of Aging Heat-Treatment on Damage Mechanisms of Particulate Reinforced Aluminium Matrix Composites

Science and Engineering of Composite Materials ◽

10.1515/secm.2000.9.1.25 ◽

2000 ◽

Vol 9 (1) ◽

pp. 25-36

Author(s):

Irina Severin,

Keyword(s):

Heat Treatment ◽

Aluminium Matrix ◽

Matrix Composites ◽

Damage Mechanisms ◽

Aging Heat Treatment ◽

Aluminium Matrix Composites ◽

Particulate Reinforced

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Research Progress on Plastic Processing Techniques of Particulate Reinforced Aluminium Matrix Composites

Materials Science Forum ◽

10.4028/www.scientific.net/msf.898.971 ◽

2017 ◽

Vol 898 ◽

pp. 971-983 ◽

Cited By ~ 2

Author(s):

Hai Bao Wu ◽

De Fu Li ◽

Xing Gang Li ◽

Guo Qiang Chai

Keyword(s):

Material Properties ◽

Spray Deposition ◽

Stir Casting ◽

Research Progress ◽

Aluminium Matrix ◽

Matrix Composites ◽

Aluminium Matrix Composites ◽

Low Thermal Expansion ◽

Plastic Processing ◽

Particulate Reinforced

Particulate Reinforced Aluminium Matrix Composites (PRAMCs) have been widely applied in military and civilian areas such as aviation, aerospace, advanced weapon applications and electrical industries due to their good mechanical properties at elevated temperature, low thermal expansion coefficient, excellent wear resistance and low production cost. The main preparation techniques of the PRAMCs include stir casting, powder metallurgy, pressureless infiltration and spray deposition. However, the problems such as low densification and particle cluster encountered in these techniques often reduce the material properties. It has reported that the homogeneity of the distribution of particulate reinforcements in metal matrix can be improved by plastic processing, thus enhancing the material densification. This paper summarized recent progress in the plastic processing methods of the PRAMCs, with an emphasis on the spinning technique. The effects of various process parameters on the material properties were discussed in detail. A summary of research progress on the numerical simulation of plastic processing of the PRAMCs was presented. In the end, an outlook was given on the prospect of the PRAMCs’ development.

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Effect of Weight Percentage on Mechanical Properties of Boron Carbide Particulate Reinforced Aluminium Matrix Composites

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.612.151 ◽

2014 ◽

Vol 612 ◽

pp. 151-155 ◽

Cited By ~ 1

Author(s):

S Dhinakaran ◽

T.V. Moorthy

Keyword(s):

Mechanical Properties ◽

Stir Casting ◽

Vital Role ◽

Aluminium Matrix ◽

Matrix Composites ◽

Sem Images ◽

Aluminium Matrix Composites ◽

Weight Percentage ◽

The Matrix ◽

Particulate Reinforced

Aluminium matrix composites (AMCs) play a vital role as advanced engineering materials due to their excellent mechanical properties like light weight, strength, wear resistance, toughness. This work focuses on the fabrication of aluminium (AA6061) matrix composites reinforced with 3%, 6% and 9% B4C particle of 104μm using stir casting method. The wettability of B4C particles in the matrix has been improved by adding K2TiF6flux in to the molten metal. The microstructure and mechanical properties of the fabricated AMCs are analyzed. Uniform distribution of B4C particle in the matrix was confirmed using scanning electron microscope (SEM) images. It was found that the tensile strength and hardness of the fabricated AMCs increases with increased B4C particle content.

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