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High Strength and Electrical Conductivity of Al‐Fe Alloys Produced by Synergistic Combination of High‐Pressure Torsion and Aging
Author(s) -
CuberoSesin Jorge M.,
Arita Makoto,
Horita Zenji
Publication year - 2015
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201500103
Subject(s) - materials science , electrical resistivity and conductivity , supersaturation , torsion (gastropod) , precipitation , composite material , electrical conductor , high pressure , conductivity , metallurgy , thermodynamics , chemistry , electrical engineering , medicine , physics , surgery , meteorology , engineering
A synergistic combination of high‐pressure torsion (HPT) and artificial aging was attempted in Al‐Fe alloys to achieve high strength and high electrical conductivity. HPT produced an ultrafine‐grained structure and supersaturation of Fe in the matrix, resulting in high strength above 500 MPa. Aging after the HPT processing increased the electrical conductivity well over 50 IACS% while simultaneously increasing the yield strength above 600 MPa via precipitation of dissolved Fe. The results demonstrate that Al containing a low fraction of Fe (2 wt%) should be a good candidate for a high strength, light weight, and high‐electrical‐conductive material.