Friction stir welding of hybrid recycled metal matrix composites

John Victor Christy, Abdel Hamid I. Mourad

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this work, conventional Friction Stir Welding (FSW) was used to investigate the weldability of recycled hybrid Aluminum Matrix Composites (AMCs). The novel composites were developed by squeeze stir casting process of scrap aluminum alloy wheels of cars as matrix and 4 wt.% of graphite, and 5 wt% of alumina as reinforcements. The casting parameters optimized from our previous work, such as squeeze pressure of 100 MPa, squeeze time of 45s, die preheating temperature of 250C, and stirrer speed of 525 rpm, were used while casting the hybrid AMC rods. 4 mm plates were cut from each rod and subjected to an in-Air friction stir welding process using a cylindrical tool of 16 mm diameter and 3 mm pin depth. Twopass welding with a tool rotation of 1600 rpm and feed rates of 24 mm/min and 55 mm/min were used for FSW of samples. The welded section was cut out and subjected to mechanical tests such as tensile and Brinell hardness tests. It was observed that the samples welded at lower feed rates exhibited a higher tensile strength of 154 MPa and Brinell Hardness number of 61. The weldability of the recycled composites was successfully tested using FSW, a sustainable welding process. The work shows that hybrid recycled AMCs can be used for piping s and structures prone to wear.

Original languageEnglish
Title of host publicationMaterials and Fabrication
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791886175
Publication statusPublished - 2022
EventASME 2022 Pressure Vessels and Piping Conference, PVP 2022 - Las Vegas, United States
Duration: Jul 17 2022Jul 22 2022

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
ISSN (Print)0277-027X


ConferenceASME 2022 Pressure Vessels and Piping Conference, PVP 2022
Country/TerritoryUnited States
CityLas Vegas


  • Alumina
  • Friction Stir Welding (FSW)
  • Graphite
  • Hardness
  • Hybrid AMC
  • Mechanical property
  • Scrap Aluminum Alloy Wheels (SAAW)
  • Stir squeeze casting
  • Tensile

ASJC Scopus subject areas

  • Mechanical Engineering


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