High strength and high electrical conductivity of UFG Al-2%Fe alloy achieved by high-pressure torsion and aging

J. M. Cubero-Sesin, M. Arita, M. Watanabe, Z. Horita

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In this study, Al-2%Fe samples extracted from a cast ingot in the shape of rings were processed by High-Pressure Torsion (HPT) at room temperature. Suitable specimens were extracted for evaluation of mechanical properties and electrical resistivity. High tensile strength of ∼600 MPa was attained by HPT due to grain refinement down to an average grain size of ∼130 nm and by subsequent aging accompanied by nano-sized (∼10 nm) AhFe precipitates. The resulting conductivity (IACS%) was recovered from ∼40% in the steady state after HPT to well above 50% in the peak-aged condition, which is in the range of current Al electrical alloys.

Original languageEnglish
Article number012117
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - Jan 1 2014
Event6th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD 2014 - Metz, France
Duration: Jun 30 2014Jul 4 2014


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

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