Alternative Composite Design from Recycled Aluminium (AA7075) Chips for Knuckle Applications-II

  • G. Katundi
  • D. Katundi
  • E. BayraktarEmail author
  • I. Miskioglu
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)


In this work, an alternative aluminium matrix composite (AMCs) was designed from the recycled chips of the aluminium series of AA7075 (90 wt %) and Al-Zn-Mg-Si-Ni (10 wt %) given by French aeronautic company to prepare a typical matrix after that we have designed a composite through combined method of powder metallurgy followed by Sintering + Forging. Basically, B2O3 (4 wt %, 8 wt %), TiC (5 wt %), fine Al2O3 Fibre (5 wt %), Zn (4 wt %) and Nb2Al (4 wt %) were added as the main reinforcements. To increase wettability of the reinforcements, we doped them through a thermomechanical treatment. The main idea of this research is to propose an alternative low cost composite for the application in a mechanism to transfer motion for the connection links, for example; between the two railways wagons etc. and also some connecting link in aeronautical pieces as an alternative replacement for conventional alloys used in this area. Mechanical properties, static compression 3-Point Bending (3PB) and dynamic drop weight tests and also micro-hardness results of these composites have been carried out. The microstructure analyses were evaluated by Scanning Electron Microscope (SEM).


Knuckle-joint composites Sinter + forging Damage analyses Static-dynamic tests SEM analyses 



This work has been carried out on the frame of collaboration between Supmeca/PARIS and Michigan Technical University/Houghton-MI-USA. Authors acknowledge and appreciate so much to the Dr. H-A. ALHAS from Airbus Space in London/UK for supplying materials and for technical help.


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Copyright information

© Society for Experimental Mechanics, Inc. 2020

Authors and Affiliations

  • G. Katundi
    • 1
  • D. Katundi
    • 2
  • E. Bayraktar
    • 2
    Email author
  • I. Miskioglu
    • 3
  1. 1.Nexteer-AutomotiveVillepinteFrance
  2. 2.Supmeca-Paris, School of Mechanical and Manufacturing EngineeringParisFrance
  3. 3.ME-EM DepartmentMichigan Technological UniversityHoughtonUSA

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