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In this research, aluminium (Al) 7075-based Metal Matrix Composites (MMCs) are fabricated using the powder metallurgy method. Different fabricating condition is considered with 3 wt% of MoS2 and 5 wt% of cenosphere as reinforcement particles with the matrix material. Al 7075 alloy has been used significantly in fabricating lightweight structures demanding high strength-to-weight ratios and improved wear resistance. Researchers are interested in the development of Al-based MMCs with high wear resistance. The tribological analysis is done in a pin-on-disc tribometer setup to study the influence of reinforcement particles on MMC products. The influence of the various MMC products is studied using tribological analysis with 20 N applied weight and 1 m/s sliding velocity. From all the analyses, the hybrid MMC products reinforced with 3 wt% of MoS2 and 5 wt% of cenosphere show better results among all the fabricated MMCs. The lowest wear rate and COF at 0.0086 mm3/m and 0.4547 are achieved, respectively, for these MMC products.

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Study of the Tribological Behaviour of Aluminium-Based Composites Fabricated Through Powder Metallurgy

  • 会议论文

  • 发表日期：

    2025年

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  • Sudhir Kumar,
  • Pallab Sarmah,
  • Rajeev Nayan Gupta

摘要

In this research, aluminium (Al) 7075-based Metal Matrix Composites (MMCs) are fabricated using the powder metallurgy method. Different fabricating condition is considered with 3 wt% of MoS2 and 5 wt% of cenosphere as reinforcement particles with the matrix material. Al 7075 alloy has been used significantly in fabricating lightweight structures demanding high strength-to-weight ratios and improved wear resistance. Researchers are interested in the development of Al-based MMCs with high wear resistance. The tribological analysis is done in a pin-on-disc tribometer setup to study the influence of reinforcement particles on MMC products. The influence of the various MMC products is studied using tribological analysis with 20 N applied weight and 1 m/s sliding velocity. From all the analyses, the hybrid MMC products reinforced with 3 wt% of MoS2 and 5 wt% of cenosphere show better results among all the fabricated MMCs. The lowest wear rate and COF at 0.0086 mm3/m and 0.4547 are achieved, respectively, for these MMC products.