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Optimization of Strength-Electrical Conductivity Properties in Al–2Fe Alloy by Severe Plastic Deformation and Heat Treatment

Version 2 2024-06-04, 05:25
Version 1 2018-07-12, 15:55
journal contribution
posted on 2024-06-04, 05:25 authored by AE Medvedev, MY Murashkin, NA Enikeev, RZ 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 Materials

Volume

20

Article number

ARTN 1700867

Location

Chichester, Eng.

ISSN

1438-1656

eISSN

1527-2648

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2017, WILEY-VCH Verlag

Issue

3

Publisher

WILEY-V C H VERLAG GMBH