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Optimization of strength-electrical conductivity properties in Al–2Fe alloy by severe plastic deformation and heat treatment
journal contribution
posted on 2018-03-01, 00:00 authored by A E Medvedev, M Y Murashkin, N A Enikeev, R Z Valiev, Peter HodgsonPeter Hodgson, Rimma LapovokRimma Lapovok© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 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�. 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.
History
Journal
Advanced engineering materialsVolume
20Issue
3Article number
1700867Publisher
WileyLocation
Chichester, Eng.Publisher DOI
ISSN
1438-1656eISSN
1527-2648Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2017, WILEY-VCH VerlagUsage metrics
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