Composites represent a new class of materials that perform better than traditional alloys and pure materials. Although there are many matrix materials used in composites, the most widely used of these is Aluminium (Al), Iron, Magnesium, Titanium, and Copper, due to the nature of having a lightweight material with reliable mechanical properties as well as high thermal and electrical conductivity. Its ductility, malleability, low coefficient of thermal expansion, and superior corrosion resistance make it more versatile and suitable for applications in various industries. These desirable properties make Aluminium a preferred matrix material for various applications. In the family of Aluminium Alloys (AA), AA 6082, part of the 6000 series alloys, is particularly popular in automotive and other engineering applications due to its excellent mechanical properties and usability. Some particulate reinforcements added in aluminum matrices are SiC, Al₂O₃, Boron, B₄C, and TiC, which enhance the stiffness, specific strength, fatigue resistance, conductivity, creep resistance, and wear property of aluminum matrices. Among them, Boron Carbide has a very high hardness, excellent chemical resistance, low density, and strong improvement of wear and corrosion resistance of composites. In this work, The B₄C reinforcing effect on AA6082 matrix composites at various weights is examined. The AA6082 matrix composites were reinforced using a stir-casting technique by incorporating 1 wt%, 2 wt%, 3 wt%, and 4 wt% B₄C into the matrix. The compositions were characterized to examine the mechanical properties, such as yield strength, tensile strength, percentage elongation, and hardness, in order to analyze how the mechanical properties are affected by the B₄C reinforcement.

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Fabrication and Experimental Study on Al6082 + B4C Metal Matrix Composite

  • K. Anusha,
  • S. Hemalatha,
  • K. Vahini

摘要

Composites represent a new class of materials that perform better than traditional alloys and pure materials. Although there are many matrix materials used in composites, the most widely used of these is Aluminium (Al), Iron, Magnesium, Titanium, and Copper, due to the nature of having a lightweight material with reliable mechanical properties as well as high thermal and electrical conductivity. Its ductility, malleability, low coefficient of thermal expansion, and superior corrosion resistance make it more versatile and suitable for applications in various industries. These desirable properties make Aluminium a preferred matrix material for various applications. In the family of Aluminium Alloys (AA), AA 6082, part of the 6000 series alloys, is particularly popular in automotive and other engineering applications due to its excellent mechanical properties and usability. Some particulate reinforcements added in aluminum matrices are SiC, Al₂O₃, Boron, B₄C, and TiC, which enhance the stiffness, specific strength, fatigue resistance, conductivity, creep resistance, and wear property of aluminum matrices. Among them, Boron Carbide has a very high hardness, excellent chemical resistance, low density, and strong improvement of wear and corrosion resistance of composites. In this work, The B₄C reinforcing effect on AA6082 matrix composites at various weights is examined. The AA6082 matrix composites were reinforced using a stir-casting technique by incorporating 1 wt%, 2 wt%, 3 wt%, and 4 wt% B₄C into the matrix. The compositions were characterized to examine the mechanical properties, such as yield strength, tensile strength, percentage elongation, and hardness, in order to analyze how the mechanical properties are affected by the B₄C reinforcement.