Microstructural evolution, mechanical and nanoindentation studies of stir cast binary and ternary aluminium based composites

Samuel Olukayode Akinwamide, Ojo Jeremiah Akinribide, Peter Apata Olubambi

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

The superior qualities offered by aluminium matrix composites (AMC) over the years has made it a widely used material for the fabrication of various components in the engineering sector. The effect of silicon carbide and ferrotitanium particles addition on the properties of stir cast aluminium-based composite was investigated. Stir casting technique was employed to ensure homogeneous dispersion of the reinforcement particles within the aluminium matrix. The microstructural, mechanical and tribological properties of the specimens were further assessed to determine the integrity of the fabricated composites. Results from microstructural examination showed a uniform dispersion of the reinforcement particles within the aluminium matrix. The reduced wear rate recorded by the composite reinforced with 5 wt% SiC +2 wt% TiFe resulted from the sliding of the stainless steel counterface over the oxide layers formed on the specimen surface. The specimen reinforced with 5 wt% TiFe +2 wt% SiC exhibited an enhanced tensile and nanomechanical properties, while the binary composite system with 5 wt% TiFe reinforcement had its wear resistance and modulus of elasticity improved.

Original languageEnglish
Article number156586
JournalJournal of Alloys and Compounds
Volume850
DOIs
Publication statusPublished - 5 Jan 2021

Keywords

  • Aluminium matrix composites
  • Ferrotitanium
  • Nanoindentation
  • Silicon carbide
  • Stir casting

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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