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<p>In the present study, surface composites (SCs) of AA6082/SiC were developed using the friction stir processing (FSP) method to improve properties of AA6082. One, three, and five passes of FSP were employed in order to examine the changes in microstructure and properties of AA6082. Microstructural examination showed that the five pass FSPed AA6082/SiC SCs exhibited finer grain structure and better dispersion of SiC nanoparticles. Mechanical and tribological properties revealed that on increasing number of FSP passes resulted in improved ultimate tensile strength and wear resistance. Similarly better corrosion resistance was obtained in 5-pass SCs compared to the base metal. The results provided valuable insights for the developmental and homogeneous distribution of SiC nano-particles within the metal matrix and strongly validate with microstructural evolution.</p> Graphical Abstract <p></p>

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Surface Modification and Properties Enhancement of AA6082 Using Multi-Pass Friction Stir Processing

  • 期刊论文

  • 发表日期：

    2025年2月20日

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  • Farooz Ahmad Najar,
  • Sandeep Rathee,
  • Manu Srivastava,
  • Deepak Chhabra

摘要

In the present study, surface composites (SCs) of AA6082/SiC were developed using the friction stir processing (FSP) method to improve properties of AA6082. One, three, and five passes of FSP were employed in order to examine the changes in microstructure and properties of AA6082. Microstructural examination showed that the five pass FSPed AA6082/SiC SCs exhibited finer grain structure and better dispersion of SiC nanoparticles. Mechanical and tribological properties revealed that on increasing number of FSP passes resulted in improved ultimate tensile strength and wear resistance. Similarly better corrosion resistance was obtained in 5-pass SCs compared to the base metal. The results provided valuable insights for the developmental and homogeneous distribution of SiC nano-particles within the metal matrix and strongly validate with microstructural evolution.

Graphical Abstract