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<p>Metal Matrix Composites are sophisticated materials with a metallic matrix reinforced with ceramics or fibers to improve strength, stiffness, wear resistance, and thermal stability. Aluminum, magnesium, and titanium alloys are matrices and carbides, oxides, nitrides, and borides are reinforcements. Aerospace, automotive, defense, and other industries use MMCs due to their strength-to-weight ratios. Friction Stir Processing (FSP), evolved from Friction Stir Welding, is a thermomechanical method that improves metal microstructure without melting, optimizing reinforcement distribution, grain size, and mechanical characteristics. FSP distributes particles uniformly, refines grain and thereby enhances composite tensile strength, ductility, and wear resistance. Limited study exists on the impact of reinforcement content on mechanical and wear behavior, notably B<sub>4</sub>C, in Al 6063 alloys. The study examines the impact of B<sub>4</sub>C content (2, 4, and 6%) on the microstructure, mechanical characteristics, and wear behavior of Al 6063-B<sub>4</sub>C composites processed by FSP.</p>

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Advancing Wear Resistance and Mechanical Integrity of Al 6063-B4C Composites Through Tailored Friction Stir Processing

  • 期刊论文

  • 发表日期：

    2025年5月6日

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  • Srinivas Banothu,
  • Banoth Mohan,
  • Mukuloth Srinivasnaik

摘要

Metal Matrix Composites are sophisticated materials with a metallic matrix reinforced with ceramics or fibers to improve strength, stiffness, wear resistance, and thermal stability. Aluminum, magnesium, and titanium alloys are matrices and carbides, oxides, nitrides, and borides are reinforcements. Aerospace, automotive, defense, and other industries use MMCs due to their strength-to-weight ratios. Friction Stir Processing (FSP), evolved from Friction Stir Welding, is a thermomechanical method that improves metal microstructure without melting, optimizing reinforcement distribution, grain size, and mechanical characteristics. FSP distributes particles uniformly, refines grain and thereby enhances composite tensile strength, ductility, and wear resistance. Limited study exists on the impact of reinforcement content on mechanical and wear behavior, notably B4C, in Al 6063 alloys. The study examines the impact of B4C content (2, 4, and 6%) on the microstructure, mechanical characteristics, and wear behavior of Al 6063-B4C composites processed by FSP.