Abstract
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 language | English |
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Article number | 012117 |
Journal | IOP Conference Series: Materials Science and Engineering |
Volume | 63 |
Issue number | 1 |
DOIs | |
State | Published - 2014 |
Externally published | Yes |
Event | 6th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD 2014 - Metz, France Duration: 30 Jun 2014 → 4 Jul 2014 |
Keywords
- aluminum alloys
- electrical conductivity
- high strength
- ultrafine grains