DOI

High-pressure torsion at room temperature followed by two processing routes, either 1) annealing at 200 °C for 8 h or 2) elevated temperature (200 °C) high-pressure torsion, are employed to obtain simultaneous increase in mechanical strength and electrical conductivity of Al–2 wt%Fe. The comparative study of microstructure, particle distribution, mechanical properties, and electrical conductivity for both processing routes gives the optimal combination of high mechanical strength and high electrical conductivity in Al–2Fe alloy. It is shown that while the mechanical strength is approximately the same for both processing routes (>320 MPa), high-pressure torsion at elevated temperature results in higher conductivity (≥52% IACS) due to reduction of Fe solute atom concentration in Al matrix compared to annealing treatment. High-pressure torsion at 200 °C has been demonstrated as a new and effective way for obtaining combination of high mechanical strength and electrical conductivity in Al–Fe alloys.

Original languageEnglish
Article number1700867
Number of pages7
JournalAdvanced Engineering Materials
Volume20
Issue number3
DOIs
StatePublished - 1 Mar 2018

    Research areas

  • Al–Fe alloys, Annealing, Electrical conductivity, High-pressure torsion, Hot deformation, Mechanical strength, DESIGN, WIRES, HIGH-PRESSURE TORSION, MECHANISMS, MICROHARDNESS, Al-Fe alloys, MICROSTRUCTURE

    Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)

ID: 16948785