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Several superior features make MMCs more widely used than their counterparts without reinforcement, such as high strength and excellent wear resistance. Numerous investigations are done in conjunction with many ceramic dispersoids, which include nitrides, carbides, aluminides, and nitrides. It is difficult to manufacture composite materials from engineered wastes using low-cost and fine-value aids. Cenospheres and fly ash will be the reinforcement of composites that can be widely used in small engines in auto motives. Have studied the wear, microstructure, physical as well as mechanical properties of the matrix alloy Al6062 ingot, which had been reinforced with cenospheres of varying percentages such as 9%, 6%, and 3% and have been prepared with the assistance of liquid metallurgy route, and after some time it’s been made a comparison to the cast alloy. A comparison of the hardness and strength values of Al6062 MMCs and Al6062 alloy has found that the Al6062 MMCs are harder and stronger. Compared to Al6062 alloy, its composites reinforced with CNS showed an improvement in strength (i.e., UTS and YS) on an average of 16.34% and 25.25% respectively. The addition of cenospheres acts as a load-bearing material and uniform dispersal of CNS in matrix leads to improvement in strength. Compared to Al6062 alloy, its composites reinforced with CNS showed reduction in ductility (i.e., % Elgn) on an average of 24.46% respectively. The addition of cenospheres leads to brittleness in material leading to decrease in ductility. Compared to Al6062 alloy, its composites reinforced with CNS showed an improvement in density on an average of 3.99% respectively. Dense microstructure with minimum porosity has led to improvement in density. Wear result illustrates that, as compared with 6062 alloy, the composite of CNS has a better wear resistance. Hardness enhancement gained owing to consistent dispersion and binding of the CNS in the composite could indeed be explained by the reduced wear rate. Also, the addition of cenospheres acts as a load-bearing material, which protects matrix from more wear out. Wear track investigation described more wear out and deep abrasive trenches in as-cast compared to that of composites, which may be due to the lack of load-bearing reinforcing material (CNS), which worsens the material strength leading to more tear or wear out. This study highlights the essential characteristics of technique of liquid metallurgy and its application to Al6062 MMCs reinforced with cenospheres.

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Studies on Mechanical and Tribological Properties of Al6062 MMCs Using Liquid Metallurgy Route for Commercial Engineering Applications

  • 会议论文

  • 发表日期：

    2025年

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  • Chithirai Pon Selvan,
  • Mohammed Khan,
  • T. Daniel Thangadurai,
  • Mahesh Nagaraj

摘要

Several superior features make MMCs more widely used than their counterparts without reinforcement, such as high strength and excellent wear resistance. Numerous investigations are done in conjunction with many ceramic dispersoids, which include nitrides, carbides, aluminides, and nitrides. It is difficult to manufacture composite materials from engineered wastes using low-cost and fine-value aids. Cenospheres and fly ash will be the reinforcement of composites that can be widely used in small engines in auto motives. Have studied the wear, microstructure, physical as well as mechanical properties of the matrix alloy Al6062 ingot, which had been reinforced with cenospheres of varying percentages such as 9%, 6%, and 3% and have been prepared with the assistance of liquid metallurgy route, and after some time it’s been made a comparison to the cast alloy. A comparison of the hardness and strength values of Al6062 MMCs and Al6062 alloy has found that the Al6062 MMCs are harder and stronger. Compared to Al6062 alloy, its composites reinforced with CNS showed an improvement in strength (i.e., UTS and YS) on an average of 16.34% and 25.25% respectively. The addition of cenospheres acts as a load-bearing material and uniform dispersal of CNS in matrix leads to improvement in strength. Compared to Al6062 alloy, its composites reinforced with CNS showed reduction in ductility (i.e., % Elgn) on an average of 24.46% respectively. The addition of cenospheres leads to brittleness in material leading to decrease in ductility. Compared to Al6062 alloy, its composites reinforced with CNS showed an improvement in density on an average of 3.99% respectively. Dense microstructure with minimum porosity has led to improvement in density. Wear result illustrates that, as compared with 6062 alloy, the composite of CNS has a better wear resistance. Hardness enhancement gained owing to consistent dispersion and binding of the CNS in the composite could indeed be explained by the reduced wear rate. Also, the addition of cenospheres acts as a load-bearing material, which protects matrix from more wear out. Wear track investigation described more wear out and deep abrasive trenches in as-cast compared to that of composites, which may be due to the lack of load-bearing reinforcing material (CNS), which worsens the material strength leading to more tear or wear out. This study highlights the essential characteristics of technique of liquid metallurgy and its application to Al6062 MMCs reinforced with cenospheres.