An investigation of the tensile and compressive properties of Al6061 and its nanocomposites in as-cast state and in extruded condition

H. R. Ezatpour*, S. A. Sajjadi, M. H. Sabzevar, Y. Z. Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Aluminum-matrix composites (AMCs) have the potential to offer desirable properties suitable for numerous applications in aerospace, automobile, and military industries. In this work, Al6061/Al2O3 nanocomposites with different Al2O3 weight percentage 0.5, 1 and 1.5wt% were fabricated by the developed stir-casting process. The nanocomposites were then extruded at 550°C. Mechanical test results indicated that in as-cast state, tensile and compression strength increased while ductility decreased with increasing particle content. The extrusion process effectively caused the improvement of mechanical properties and ductility especially in the nanocomposites with high percentage of reinforcement. Moreover, fracture surface results showed that in as-cast state, composites represent interdendritic fracture mode while in extruded condition they represent a mixed mode including ductile and brittle fracture.

Original languageEnglish
Pages (from-to)589-595
Number of pages7
JournalMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume607
DOIs
Publication statusPublished - Jun 23 2014
Externally publishedYes

ASJC Scopus Subject Areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • Compression properties
  • Extrusion
  • Fracture surface
  • Nanocomposite
  • Stir-casting

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