Journal
ADVANCED ENGINEERING MATERIALS
Volume 17, Issue 12, Pages 1792-1803Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adem.201500103
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan
- Japan Science and Technology Agency (JST)
- Light Metals Educational Foundation of Japan
- MEXT, Japan [22102004, 26220909]
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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.
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