Anisotropic behavior studies of aluminum alloy 5083-H0 using a micro-tensile test stage in a FEG-SEM

Glenda T. Motsi, Mxolisi B. Shongwe, Tleyane J. Sono, Peter A. Olubambi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The plastic anisotropic characteristics of aluminum alloy 5083-H0 at varying strain rates were investigated using uniaxial tensile testing inside an ultra-high resolution FEG-SEM. The stress strain graphs obtained show that for the rolling direction the mechanical properties decrease with increased strain rate from 0.1 to 0.5. mm/min. The transverse direction mechanical properties increase from 0.1 to 0.2 and decrease at 0.5. mm/min. Serrated yielding for both directions was more pronounced in the 0.1. mm/min and 0.2. mm/min than in 0.5. mm/min strain rate. The fracture surface was characterized by nucleation of micro-dimples of varying sizes and shapes, which became shallower with increasing strain rates. Intermetallic particles were observed in the large micro-dimples on the fractured surface. The microstructure anisotropy revealed a shear type failure mode due to the shear bands localization for the 0° direction and for the 90° direction, failure mode showed both intergranular and shear type failure.

Original languageEnglish
Pages (from-to)266-274
Number of pages9
JournalMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Publication statusPublished - 22 Feb 2016


  • Aluminum alloy
  • Anisotropy
  • In-situ SEM tensile test

ASJC Scopus subject areas

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


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