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Electric current-induced annealing during uniaxial tension of aluminum alloy

Cited 186 time in Web of Science Cited 195 time in Scopus
Authors

Kim, Moon-Jo; Lee, Keunho; Oh, Kyu Hwan; Choi, In Suk; Yu, Hyeong-Ho; Hong, Sung-Tae; Han, Heung Nam

Issue Date
2014-03
Publisher
Pergamon Press Ltd.
Citation
Scripta Materialia, Vol.75, pp.58-61
Abstract
The mechanical behavior of an aluminum alloy under a pulsed electric current was investigated by uniaxial tension and subsequent microstructural observations. The elongation increased drastically with softening of the flow stress under the electric current. Microstructural observations confirmed that the effect of Joule heating on this softening is not dominant and the recovery of dislocation occurs at a given current density. This study proves that the electric current itself could play a distinct role in inducing annealing apart from Joule heating. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
ISSN
1359-6462
URI
https://hdl.handle.net/10371/201977
DOI
https://doi.org/10.1016/j.scriptamat.2013.11.019
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  • College of Engineering
  • Department of Materials Science & Engineering
Research Area High Temperature Alloys, High Strength , Nano Mechanics and Nano Structure Design for Ultra Strong Materials, Shape and Pattern Design for Engineering Materials

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